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diff --git a/docs/people-cards.css b/docs/people-cards.css new file mode 100644 index 0000000..bfaeed0 --- /dev/null +++ b/docs/people-cards.css @@ -0,0 +1,202 @@ +.people-grid { + display: grid; + grid-template-columns: repeat(4, minmax(0, 1fr)); + gap: 1.75rem 1.5rem; + align-items: start; + margin: 1rem 0 0.75rem; + overflow: visible; +} + +.level2 > h2 { + margin-top: 1.25rem; +} + +.people-card { + position: relative; + min-width: 0; + text-align: center; +} + +.people-card__trigger { + display: flex; + flex-direction: column; + align-items: center; + min-width: 0; + color: inherit; + text-decoration: none; + border-radius: 0.5rem; + outline: 0 solid transparent; +} + +.people-card__trigger:hover, +.people-card__trigger:focus, +.people-card__trigger:focus-visible { + color: inherit; + text-decoration: none; +} + +.people-card__trigger:focus-visible { + outline: 3px solid #60a5fa; + outline-offset: 0.35rem; +} + +.people-card__portrait { + display: block; + width: 100%; + aspect-ratio: 1; + object-fit: cover; + border: 1px solid rgba(255, 255, 255, 0.08); + border-radius: 0.25rem; + box-shadow: 0 0.4rem 1.3rem rgba(0, 0, 0, 0.24); + transition: box-shadow 180ms ease, transform 180ms ease; +} + +.people-card:hover .people-card__portrait, +.people-card:focus-within .people-card__portrait, +.people-card.is-open .people-card__portrait { + transform: translateY(-0.2rem); + box-shadow: 0 0.8rem 2rem rgba(0, 0, 0, 0.38); +} + +.people-card__name { + display: block; + max-width: 100%; + margin-top: 0.7rem; + overflow-wrap: anywhere; + color: #f8fafc; + font-family: "Outfit", sans-serif; + font-size: 1.02rem; + font-weight: 600; + line-height: 1.25; +} + +.people-card__role { + display: block; + max-width: 100%; + margin-top: 0.15rem; + overflow-wrap: anywhere; + color: #94a3b8; + font-family: "Inter", sans-serif; + font-size: 0.82rem; + line-height: 1.35; +} + +.people-card__panel { + --people-panel-shift: 0px; + position: absolute; + z-index: 30; + top: calc(100% + 0.65rem); + left: 50%; + width: min(25rem, calc(100vw - 2rem)); + max-height: min(32rem, calc(100vh - 2rem)); + padding: 1rem; + overflow-y: auto; + visibility: hidden; + opacity: 0; + pointer-events: none; + transform: translateX(calc(-50% + var(--people-panel-shift))) translateY(-0.25rem); + color: #cbd5e1; + font-family: "Inter", sans-serif; + font-size: 0.86rem; + line-height: 1.55; + text-align: left; + background: #172033; + border: 1px solid rgba(148, 163, 184, 0.35); + border-radius: 0.625rem; + box-shadow: 0 1rem 2.5rem rgba(0, 0, 0, 0.45); + transition: opacity 180ms ease, transform 180ms ease, + visibility 0s linear 180ms; +} + +.people-card:hover .people-card__panel, +html:not(.people-cards-enhanced) .people-card:focus-within .people-card__panel, +.people-card.is-open .people-card__panel { + visibility: visible; + opacity: 1; + pointer-events: auto; + transform: translateX(calc(-50% + var(--people-panel-shift))) translateY(0); + transition-delay: 0s; +} + +.people-card__meta { + display: flex; + flex-direction: column; + gap: 0.1rem; + color: #94a3b8; +} + +.people-card__meta strong { + color: #f8fafc; + font-family: "Outfit", sans-serif; + font-size: 0.95rem; + font-weight: 600; +} + +.people-card__summary, +.people-card__links, +.people-card__profile-link { + margin-top: 0.75rem; + padding-top: 0.75rem; + border-top: 1px solid rgba(148, 163, 184, 0.22); +} + +.people-card__summary { + color: #cbd5e1; +} + +.people-card__links { + display: flex; + flex-wrap: wrap; + gap: 0.35rem 0.8rem; +} + +.people-card__links a, +.people-card__profile-link { + color: #93c5fd; + font-weight: 500; + text-decoration: none; +} + +.people-card__links a:hover, +.people-card__links a:focus-visible, +.people-card__profile-link:hover, +.people-card__profile-link:focus-visible { + color: #c4b5fd; + text-decoration: underline; + text-underline-offset: 0.18em; +} + +.people-card__profile-link { + display: block; +} + +#listing-alumni { + max-width: 100%; + overflow-x: auto; +} + +@media (max-width: 1199px) { + .people-grid { + grid-template-columns: repeat(3, minmax(0, 1fr)); + } +} + +@media (max-width: 767px) { + .people-grid { + grid-template-columns: repeat(2, minmax(0, 1fr)); + } +} + +@media (max-width: 479px) { + .people-grid { + grid-template-columns: minmax(0, 1fr); + gap: 1.5rem; + } +} + +@media (prefers-reduced-motion: reduce) { + .people-card__portrait, + .people-card__panel { + transition: none; + } +} diff --git a/docs/people-cards.js b/docs/people-cards.js new file mode 100644 index 0000000..07d2a55 --- /dev/null +++ b/docs/people-cards.js @@ -0,0 +1,112 @@ +(() => { + document.documentElement.classList.add("people-cards-enhanced"); + + const cards = [...document.querySelectorAll(".people-card")]; + if (!cards.length) return; + + const finePointer = window.matchMedia("(hover: hover) and (pointer: fine)"); + let openCard = null; + let restoringFocus = false; + + function keepPanelInViewport(card) { + const panel = card.querySelector(".people-card__panel"); + panel.style.setProperty("--people-panel-shift", "0px"); + + const rect = panel.getBoundingClientRect(); + const gutter = 16; + let shift = 0; + if (rect.left < gutter) shift += gutter - rect.left; + if (rect.right > window.innerWidth - gutter) { + shift -= rect.right - (window.innerWidth - gutter); + } + panel.style.setProperty("--people-panel-shift", `${shift}px`); + } + + function setState(card, expanded) { + const trigger = card.querySelector(".people-card__trigger"); + const panel = card.querySelector(".people-card__panel"); + + card.classList.toggle("is-open", expanded); + trigger.setAttribute("aria-expanded", String(expanded)); + panel.setAttribute("aria-hidden", String(!expanded)); + + if (expanded) { + openCard = card; + window.requestAnimationFrame(() => keepPanelInViewport(card)); + } else { + panel.style.removeProperty("--people-panel-shift"); + if (openCard === card) openCard = null; + } + } + + function closeCurrent(except = null) { + if (openCard && openCard !== except) setState(openCard, false); + } + + cards.forEach((card) => { + const trigger = card.querySelector(".people-card__trigger"); + let coarseActivation = false; + + card.addEventListener("mouseenter", () => { + closeCurrent(card); + window.requestAnimationFrame(() => keepPanelInViewport(card)); + }); + + trigger.addEventListener("pointerdown", (event) => { + coarseActivation = + event.pointerType === "touch" || event.pointerType === "pen"; + }); + + trigger.addEventListener("focus", () => { + if (coarseActivation || restoringFocus) return; + closeCurrent(card); + setState(card, true); + }); + + trigger.addEventListener("click", (event) => { + const isCoarseClick = coarseActivation || !finePointer.matches; + coarseActivation = false; + if (!isCoarseClick || card.classList.contains("is-open")) return; + + event.preventDefault(); + closeCurrent(card); + setState(card, true); + }); + + trigger.addEventListener("keydown", (event) => { + if (event.key !== "Enter" && event.key !== " ") return; + + event.preventDefault(); + const expanded = trigger.getAttribute("aria-expanded") === "true"; + closeCurrent(card); + setState(card, !expanded); + }); + + card.addEventListener("focusout", () => { + window.requestAnimationFrame(() => { + if (!card.contains(document.activeElement)) setState(card, false); + }); + }); + }); + + document.addEventListener("click", (event) => { + if (openCard && !openCard.contains(event.target)) setState(openCard, false); + }); + + document.addEventListener("keydown", (event) => { + if (event.key !== "Escape" || !openCard) return; + + const card = openCard; + const trigger = card.querySelector(".people-card__trigger"); + setState(card, false); + restoringFocus = true; + trigger.focus(); + restoringFocus = false; + }); + + window.addEventListener("resize", () => { + if (openCard) { + window.requestAnimationFrame(() => keepPanelInViewport(openCard)); + } + }); +})(); diff --git a/docs/people.html b/docs/people.html index 5e059bd..a817af0 100644 --- a/docs/people.html +++ b/docs/people.html @@ -87,9 +87,9 @@ } const options = { - valueNames: ['listing-image','listing-title','listing-subtitle',{ data: ['index'] },{ data: ['categories'] },{ data: ['listing-date-sort'] },{ data: ['listing-file-modified-sort'] }], + valueNames: ['listing-project','listing-execute','listing-website','listing-format','listing-engines','listing-language','listing-title','listing-sortby','listing-subtitle','listing-image','listing-started','listing-interests','listing-toc','listing-resources','listing-about','listing-path','listing-outputHref','listing-author','listing-description','listing-filename','listing-file-modified','listing-reading-time','listing-word-count',{ data: ['index'] },{ data: ['categories'] },{ data: ['listing-file-modified-sort'] },{ data: ['listing-reading-time-sort'] },{ data: ['listing-word-count-sort'] }], - searchColumns: ["listing-title","listing-author","listing-image","listing-description"], + searchColumns: ["listing-project","listing-execute","listing-website","listing-format","listing-engines","listing-language","listing-title","listing-sortby","listing-subtitle","listing-image","listing-started","listing-interests","listing-toc","listing-resources","listing-about","listing-path","listing-outputHref","listing-author","listing-description","listing-filename","listing-file-modified","listing-reading-time","listing-word-count"], }; window['quarto-listings'] = window['quarto-listings'] || {}; @@ -115,9 +115,9 @@ } const options = { - valueNames: ['listing-image','listing-title','listing-subtitle',{ data: ['index'] },{ data: ['categories'] },{ data: ['listing-date-sort'] },{ data: ['listing-file-modified-sort'] }], + valueNames: ['listing-project','listing-execute','listing-website','listing-format','listing-engines','listing-language','listing-title','listing-sortby','listing-subtitle','listing-image','listing-started','listing-interests','listing-toc','listing-about','listing-path','listing-outputHref','listing-author','listing-description','listing-filename','listing-file-modified','listing-reading-time','listing-word-count',{ data: ['index'] },{ data: ['categories'] },{ data: ['listing-file-modified-sort'] },{ data: ['listing-reading-time-sort'] },{ data: ['listing-word-count-sort'] }], - searchColumns: ["listing-title","listing-author","listing-image","listing-description"], + searchColumns: ["listing-project","listing-execute","listing-website","listing-format","listing-engines","listing-language","listing-title","listing-sortby","listing-subtitle","listing-image","listing-started","listing-interests","listing-toc","listing-about","listing-path","listing-outputHref","listing-author","listing-description","listing-filename","listing-file-modified","listing-reading-time","listing-word-count"], }; window['quarto-listings'] = window['quarto-listings'] || {}; @@ -143,9 +143,9 @@ } const options = { - valueNames: ['listing-image','listing-title','listing-subtitle',{ data: ['index'] },{ data: ['categories'] },{ data: ['listing-date-sort'] },{ data: ['listing-file-modified-sort'] }], + valueNames: ['listing-project','listing-execute','listing-website','listing-format','listing-engines','listing-language','listing-title','listing-sortby','listing-subtitle','listing-image','listing-started','listing-interests','listing-toc','listing-about','listing-path','listing-outputHref','listing-author','listing-description','listing-filename','listing-file-modified','listing-reading-time','listing-word-count',{ data: ['index'] },{ data: ['categories'] },{ data: ['listing-file-modified-sort'] },{ data: ['listing-reading-time-sort'] },{ data: ['listing-word-count-sort'] }], - searchColumns: ["listing-title","listing-author","listing-image","listing-description"], + searchColumns: ["listing-project","listing-execute","listing-website","listing-format","listing-engines","listing-language","listing-title","listing-sortby","listing-subtitle","listing-image","listing-started","listing-interests","listing-toc","listing-about","listing-path","listing-outputHref","listing-author","listing-description","listing-filename","listing-file-modified","listing-reading-time","listing-word-count"], }; window['quarto-listings'] = window['quarto-listings'] || {}; @@ -171,9 +171,9 @@ } const options = { - valueNames: ['listing-image','listing-title','listing-subtitle','listing-started',{ data: ['index'] },{ data: ['categories'] },{ data: ['listing-date-sort'] },{ data: ['listing-file-modified-sort'] }], + valueNames: ['listing-project','listing-execute','listing-website','listing-format','listing-engines','listing-language','listing-title','listing-sortby','listing-subtitle','listing-image','listing-started','listing-toc','listing-about','listing-path','listing-outputHref','listing-author','listing-description','listing-filename','listing-file-modified','listing-reading-time','listing-word-count',{ data: ['index'] },{ data: ['categories'] },{ data: ['listing-file-modified-sort'] },{ data: ['listing-reading-time-sort'] },{ data: ['listing-word-count-sort'] }], - searchColumns: ["listing-title","listing-author","listing-image","listing-description"], + searchColumns: ["listing-project","listing-execute","listing-website","listing-format","listing-engines","listing-language","listing-title","listing-sortby","listing-subtitle","listing-image","listing-started","listing-toc","listing-about","listing-path","listing-outputHref","listing-author","listing-description","listing-filename","listing-file-modified","listing-reading-time","listing-word-count"], }; window['quarto-listings'] = window['quarto-listings'] || {}; @@ -199,9 +199,9 @@ } const options = { - valueNames: ['listing-image','listing-title','listing-subtitle','listing-started',{ data: ['index'] },{ data: ['categories'] },{ data: ['listing-date-sort'] },{ data: ['listing-file-modified-sort'] }], + valueNames: ['listing-project','listing-execute','listing-website','listing-format','listing-engines','listing-language','listing-title','listing-sortby','listing-subtitle','listing-image','listing-started','listing-toc','listing-about','listing-path','listing-outputHref','listing-author','listing-description','listing-filename','listing-file-modified','listing-reading-time','listing-word-count','listing-interests',{ data: ['index'] },{ data: ['categories'] },{ data: ['listing-file-modified-sort'] },{ data: ['listing-reading-time-sort'] },{ data: ['listing-word-count-sort'] }], - searchColumns: ["listing-title","listing-author","listing-image","listing-description"], + searchColumns: ["listing-project","listing-execute","listing-website","listing-format","listing-engines","listing-language","listing-title","listing-sortby","listing-subtitle","listing-image","listing-started","listing-toc","listing-about","listing-path","listing-outputHref","listing-author","listing-description","listing-filename","listing-file-modified","listing-reading-time","listing-word-count","listing-interests"], }; window['quarto-listings'] = window['quarto-listings'] || {}; @@ -227,9 +227,9 @@ } const options = { - valueNames: ['listing-image','listing-title','listing-subtitle','listing-started',{ data: ['index'] },{ data: ['categories'] },{ data: ['listing-date-sort'] },{ data: ['listing-file-modified-sort'] }], + valueNames: ['listing-project','listing-execute','listing-website','listing-format','listing-engines','listing-language','listing-title','listing-sortby','listing-subtitle','listing-image','listing-started','listing-toc','listing-about','listing-path','listing-outputHref','listing-author','listing-description','listing-filename','listing-file-modified','listing-reading-time','listing-word-count',{ data: ['index'] },{ data: ['categories'] },{ data: ['listing-file-modified-sort'] },{ data: ['listing-reading-time-sort'] },{ data: ['listing-word-count-sort'] }], - searchColumns: ["listing-title","listing-author","listing-image","listing-description"], + searchColumns: ["listing-project","listing-execute","listing-website","listing-format","listing-engines","listing-language","listing-title","listing-sortby","listing-subtitle","listing-image","listing-started","listing-toc","listing-about","listing-path","listing-outputHref","listing-author","listing-description","listing-filename","listing-file-modified","listing-reading-time","listing-word-count"], }; window['quarto-listings'] = window['quarto-listings'] || {}; @@ -255,9 +255,9 @@ } const options = { - valueNames: ['listing-image','listing-title','listing-subtitle','listing-started',{ data: ['index'] },{ data: ['categories'] },{ data: ['listing-date-sort'] },{ data: ['listing-file-modified-sort'] }], + valueNames: ['listing-project','listing-execute','listing-website','listing-format','listing-engines','listing-language','listing-title','listing-sortby','listing-subtitle','listing-image','listing-started','listing-interests','listing-card-bio','listing-toc','listing-about','listing-path','listing-outputHref','listing-author','listing-description','listing-filename','listing-file-modified','listing-reading-time','listing-word-count',{ data: ['index'] },{ data: ['categories'] },{ data: ['listing-file-modified-sort'] },{ data: ['listing-reading-time-sort'] },{ data: ['listing-word-count-sort'] }], - searchColumns: ["listing-title","listing-author","listing-image","listing-description"], + searchColumns: ["listing-project","listing-execute","listing-website","listing-format","listing-engines","listing-language","listing-title","listing-sortby","listing-subtitle","listing-image","listing-started","listing-interests","listing-card-bio","listing-toc","listing-about","listing-path","listing-outputHref","listing-author","listing-description","listing-filename","listing-file-modified","listing-reading-time","listing-word-count"], }; window['quarto-listings'] = window['quarto-listings'] || {}; @@ -348,10 +348,12 @@ + + @@ -456,284 +458,347 @@

Jump to

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+ diff --git a/docs/people/admins/yesim_tosun.html b/docs/people/admins/yesim_tosun.html index f687ba8..831c0e4 100644 --- a/docs/people/admins/yesim_tosun.html +++ b/docs/people/admins/yesim_tosun.html @@ -202,10 +202,17 @@

Yesim Tosun

-
+
+
+
-

Yesim Tosun Cauerstraße 3 91058 Erlangen Phone number:+49 9131 85-70397 Email:jenny.wirth@fau.de Website:http://www.em.techfak.uni-erlangen.de

+

Yesim Tosun Cauerstraße 3 91058 Erlangen Phone number:+49 9131 85-70397 Email: yesim.tosun@fau.de Website:http://www.em.techfak.uni-erlangen.de

diff --git a/docs/people/postdocs/02_shengbo_you.html b/docs/people/postdocs/02_shengbo_you.html index 0a79d05..3b5fcce 100644 --- a/docs/people/postdocs/02_shengbo_you.html +++ b/docs/people/postdocs/02_shengbo_you.html @@ -202,7 +202,14 @@

Shengbo You

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+
+
+
diff --git a/docs/publications.html b/docs/publications.html index 07d8d7a..af03b44 100644 --- a/docs/publications.html +++ b/docs/publications.html @@ -244,7 +244,7 @@ +
Categories
All (56)
amplitude (1)
annotation (1)
atomic physics (2)
atomic resolution (9)
atomic units (3)
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X-ray microscopy (1)
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@@ -259,13 +259,13 @@
Categories
-
50Publications
-
1,192Citations
+
55Publications
+
1,213Citations
16h-index
-
16in world’s top 10%
+
17in world’s top 10%
2in world’s top 1%
-
94%Open access
-
Source: OpenAlex · updated 2026-09-05
+
91%Open access
+
Source: OpenAlex · updated 2026-09-21
@@ -295,19 +295,57 @@
Categories
-
  • +
  • Gap‐Free Information Transfer in 4D‐STEM via Fusion of Complementary Scattering Channels
    S. You, G. Varnavides, S. Khavnekar, N. Palatkin, S. Shao, M. Wu, D. Stroppa, D. Chernikova, B. Zhu, R. Egoavil, S. Vespucci, D. Krishnan, X. Ye, F. K. M. Schur, E. Spiecker, P. Pelz
    Advanced Science (2026)
    +
    + + Scattering + + Phase-contrast imaging + + Contrast transfer function + + Upsampling + +
    + +
    + + + + 0 + cits + + + + + + + + + + + + Open Access + + + + + + +
    + - + Details @@ -321,7 +359,89 @@
    Categories
    +
  • + Transverse quantum-state characterization of programmable electron optics
    + S. You, P. Rosi, E. Rotunno, A. Roncaglia, L. Belsito, A. H. Tavabi, R. E. Dunin-Borkowski, V. Grillo, P. M. Pelz
    + arXiv (Cornell University) + (2026)
    + + + + + + + + + Details + + + + DOI + + + + + + +
  • + +
  • + Electron Ptychography in the Fresnel Diffraction Regime
    + A. Maiden, P. Lu, S. You, F. Allars
    + Microscopy and Microanalysis 31 + (2025)
    + + +
    + + Ptychography + + Fresnel diffraction + +
    + + + + + +
    + + + + 0 + cits + + + + + + + + + + + + + + +
    + + + + Details + + + + DOI + + + + + + +
  • + +
  • Identification of polytypism and their dislocations in bilayer MoS2 using correlative transmission electron microscopy and Raman spectroscopy
    X. Zhou, T. Dierke, M. Wu, S. You, K. Götz, T. Unruh, P. Pelz, J. Will, J. Maultzsch, E. Spiecker
    npj 2D Materials and Applications 9 @@ -401,7 +521,7 @@
    Categories
    + Details @@ -415,7 +535,7 @@
    Categories
    +
  • Kinetically Controlled Seed-Mediated Synthesis of Colloidal Copper Nanotetrahedra with Intricate Internal Structure
    S. Jeong, M. Wu, R. X. Skalla, B. Paranzino, A. Kichigin, B. Zhu, A. N. Butrum-Griffith, X. Zhan, Y. Zhong, C. Yan, P. Pelz, C. Ophus, S. Rechberger, Y. Wang, J. Chen, A. Yasuhara, Y. Aoyama, M. Kakefuda, K. A. Willets, E. Spiecker, X. Ye
    Journal of the American Chemical Society 147, 37622-37633 @@ -495,7 +615,7 @@
    Categories
    + Details @@ -509,7 +629,7 @@
    Categories
    +
  • Multi-slice electron ptychographic tomography for three-dimensional phase-contrast microscopy beyond the depth of focus limits
    A. Romanov, M. G. Cho, M. C. Scott, P. Pelz
    Journal of Physics: Materials 8, 015005 @@ -564,7 +684,7 @@
    Categories
    - 2.6× field avg + 2.5× field avg @@ -586,7 +706,7 @@
    Categories
    + Details @@ -608,7 +728,7 @@
    Categories
    +
  • Near-isotropic sub-Ångstrom 3d resolution phase contrast imaging achieved by end-to-end ptychographic electron tomography
    S. You, A. Romanov, P. M. Pelz
    Physica Scripta 100, 015404 @@ -677,7 +797,7 @@
    Categories
    - 4.4× field avg + 4.2× field avg @@ -699,7 +819,7 @@
    Categories
    + Details @@ -721,7 +841,7 @@
    Categories
    +
  • Sub-Ångstrom 3D Resolution, Volume Imaging Beyond the Depth of Focus Limit, and Automated Tomography Using Electron Ptychography
    P. Pelz, S. You, M. Wu, N. Palatkin
    Microscopy and Microanalysis 31 @@ -769,7 +889,7 @@
    Categories
    + Details @@ -783,7 +903,7 @@
    Categories
    +
  • Information Transfer Improvement by Parallax Correction and Ptychography Reconstruction Applied to Fast Large-Area 4D STEM Experiments
    D. G. Stroppa, S. Ribet, G. Varnavides, C. Ophus, P. Pelz
    Microscopy and Microanalysis 30 @@ -827,7 +947,7 @@
    Categories
    + Details @@ -841,7 +961,7 @@
    Categories
    +
  • Information Transfer Improvement by Parallax Correction and Ptychography Reconstruction Applied to Large-Area 4D STEM Experiments
    D. Stroppa, S. Ribet, G. Varnavides, C. Ophus, P. Pelz
    BIO Web of Conferences 129, 04027 @@ -887,7 +1007,7 @@
    Categories
    + Details @@ -901,7 +1021,7 @@
    Categories
    +
  • The 4D Camera: An 87 kHz Direct Electron Detector for Scanning/Transmission Electron Microscopy
    P. Ercius, I. J. Johnson, P. Pelz, B. H. Savitzky, L. Hughes, H. G. Brown, S. E. Zeltmann, S. Hsu, C. C. S. Pedroso, B. E. Cohen, R. Ramesh, D. Paul, J. M. Joseph, T. Stezelberger, C. Czarnik, M. Lent, E. Fong, J. Ciston, M. C. Scott, C. Ophus, A. M. Minor, P. Denes
    Microscopy and Microanalysis 30, 903-912 @@ -972,7 +1092,7 @@
    Categories
    - 3.9× field avg + 3.6× field avg @@ -994,7 +1114,7 @@
    Categories
    + Details @@ -1008,7 +1128,7 @@
    Categories
    +
  • Towards in-situ 4D-STEM observation of texture evolution in nano-crystalline thin films
    M. Wu, C. Hsieh, D. Stroppa, P. Pelz, C. Ophus, P. Lu, R. Dunin-Borkowski, C. Harreiss, P. Denninger, E. Spiecker
    BIO Web of Conferences 129, 07006 @@ -1054,7 +1174,7 @@
    Categories
    + Details @@ -1068,7 +1188,7 @@
    Categories
    +
  • Using Phase Contrast 4D-STEM to solve 3D Inorganic and Biological Nanostructures
    C. Ophus, S. Ribet, G. Varnavides, P. M. Pelz
    Microscopy and Microanalysis 30 @@ -1112,7 +1232,7 @@
    Categories
    + Details @@ -1126,7 +1246,7 @@
    Categories
    +
  • Analysis of Strain and Defects in Tellurium-WSe2 Moiré Heterostructures Using Scanning Nanodiffraction
    B. Sari, S. E. Zeltmann, C. Zhao, P. M. Pelz, A. Javey, A. M. Minor, C. Ophus, M. C. Scott
    ACS Nano 17, 22326-22333 @@ -1208,7 +1328,7 @@
    Categories
    + Details @@ -1222,7 +1342,7 @@
    Categories
    +
  • Controlled Self-Assembly of Gold Nanotetrahedra into Quasicrystals and Complex Periodic Supracrystals
    Y. Wang, J. Chen, R. Li, A. Götz, D. Drobek, T. Przybilla, S. Hübner, P. Pelz, L. Yang, B. A. Zubiri, E. Spiecker, M. Engel, X. Ye
    Journal of the American Chemical Society 145, 17902-17911 @@ -1249,7 +1369,7 @@
    Categories
    - 32 + 33 cits @@ -1280,7 +1400,7 @@
    Categories
    - + @@ -1307,7 +1427,7 @@
    Categories
    + Details @@ -1321,7 +1441,7 @@
    Categories
    +
  • High-resolution 3D phase-contrast imaging beyond the depth of field limit via ptychographic multi-slice electron tomography
    A. V. Romanov, M. G. Cho, M. Scott, C. Ophus, P. Pelz
    arXiv (Cornell University) @@ -1399,7 +1519,7 @@
    Categories
    + Details @@ -1413,7 +1533,7 @@
    Categories
    +
  • Imaging the electron charge density in monolayer MoS2 at the Ångstrom scale
    J. Martis, S. Susarla, A. Rayabharam, C. Su, T. Paule, P. Pelz, C. Huff, X. Xu, H. Li, M. Jaikissoon, V. Chen, E. Pop, K. Saraswat, A. Zettl, N. R. Aluru, R. Ramesh, P. Ercius, A. Majumdar
    Nature Communications 14 @@ -1444,7 +1564,7 @@
    Categories
    - 33 + 34 cits @@ -1475,7 +1595,7 @@
    Categories
    - + @@ -1484,7 +1604,7 @@
    Categories
    - 6.4× field avg + 6.7× field avg @@ -1506,7 +1626,7 @@
    Categories
    + Details @@ -1520,7 +1640,174 @@
    Categories
    +
  • + Lorentz near-field electron ptychography
    + S. You, P. Lu, T. Schachinger, A. Kovács, R. E. Dunin-Borkowski, A. M. Maiden
    + Applied Physics Letters 123 + (2023)
    + + +
    + + Electron holography + + Ptychography + + Optics + + Holography + +
    + + + + + +
    + + + + 12 + cits + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + 3.0× field avg + + + + + + Top 10% + + + + + + Open Access + + + + + + +
    + + + + Details + + + + DOI + + + + + + +
  • + +
  • + Magnetic Phase Imaging using Lorentz Near-field Electron Ptychography
    + S. You, P. Lu, A. Kovács, T. Schachinger, F. Allars, R. E. Dunin‐Borkowski, A. Maiden
    + arXiv (Cornell University) + (2023)
    + + +
    + + Optics + + Ptychography + + Amplitude + + Diffraction + +
    + + + + + +
    + + + + 0 + cits + + + + + + + + + + + + Open Access + + + + + + +
    + + + + Details + + + + DOI + + + + + + +
  • + +
  • Observation of Simultaneous Successive Twinning Using Atomic Electron Tomography
    P. M. Pelz, C. Groschner, A. Bruefach, C. Ophus, M. C. Scott
    Microscopy and Microanalysis 29, 707-708 @@ -1568,7 +1855,7 @@
    Categories
    + Details @@ -1582,7 +1869,7 @@
    Categories
    +
  • Resolution of Virtual Depth Sectioning from Four-Dimensional Scanning Transmission Electron Microscopy
    E. W. C. Terzoudis-Lumsden, T. C. Petersen, H. G. Brown, P. M. Pelz, C. Ophus, S. D. Findlay
    Microscopy and Microanalysis 29, 1409-1421 @@ -1653,7 +1940,7 @@
    Categories
    - 2.7× field avg + 2.8× field avg @@ -1675,7 +1962,7 @@
    Categories
    + Details @@ -1689,7 +1976,7 @@
    Categories
    +
  • Solving complex nanostructures with ptychographic atomic electron tomography
    P. M. Pelz, S. M. Griffin, S. Stonemeyer, D. Popple, H. DeVyldere, P. Ercius, A. Zettl, M. C. Scott, C. Ophus
    Nature Communications 14 @@ -1758,7 +2045,7 @@
    Categories
    - 14.6× field avg + 14.1× field avg @@ -1780,7 +2067,7 @@
    Categories
    + Details @@ -1794,7 +2081,7 @@
    Categories
    +
  • Using 4D-STEM to measure the nanoscale structure of materials in two and three dimensions
    C. Ophus, P. M. Pelz, H. A. Sternlict, B. H. Savitzky, A. Rakowski, A. Bruefach, S. Ribet, M. S. Scott
    Acta Crystallographica Section A Foundations and Advances 79, C251-C251 @@ -1838,7 +2125,7 @@
    Categories
    + Details @@ -1852,7 +2139,7 @@
    Categories
    +
  • Using a fast hybrid pixel detector for dose-efficient diffraction imaging beam-sensitive organic molecular thin films
    M. Wu, D. G. Stroppa, P. Pelz, E. Spiecker
    Journal of Physics: Materials 6, 045008 @@ -1930,7 +2217,7 @@
    Categories
    + Details @@ -1944,7 +2231,7 @@
    Categories
    +
  • Virtual imaging enabled by scattering matrix reconstruction from 4D scanning transmission electron microscopy
    E. W. C. Terzoudis-Lumsden, T. C. Petersen, H. G. Brown, P. M. Pelz, C. Ophus, S. D. Findlay
    Acta Crystallographica Section A Foundations and Advances 79, C1092-C1092 @@ -1992,7 +2279,7 @@
    Categories
    + Details @@ -2006,7 +2293,7 @@
    Categories
    +
  • A Three-Dimensional Reconstruction Algorithm for Scanning Transmission Electron Microscopy Data from a Single Sample Orientation
    H. G. Brown, P. M. Pelz, S. Hsu, Z. Zhang, R. Ramesh, K. Inzani, E. Sheridan, S. M. Griffin, M. Schloz, T. C. Pekin, C. T. Koch, S. D. Findlay, L. J. Allen, M. C. Scott, C. Ophus, J. Ciston
    Microscopy and Microanalysis 28, 1632-1640 @@ -2090,7 +2377,7 @@
    Categories
    + Details @@ -2104,7 +2391,7 @@
    Categories
    +
  • Observation of formation and local structures of metal-organic layers via complementary electron microscopy techniques
    X. Peng, P. M. Pelz, Q. Zhang, P. Chen, L. Cao, Y. Zhang, H. Liao, H. Zheng, C. Wang, S. Sun, M. C. Scott
    Nature Communications 13 @@ -2167,7 +2454,7 @@
    Categories
    - 2.8× field avg + 2.7× field avg @@ -2189,7 +2476,7 @@
    Categories
    + Details @@ -2203,7 +2490,7 @@
    Categories
    +
  • Qualitative Phase Contrast Imaging using Interferometric 4DSTEM
    A. Ducharme, P. Pelz, L. Brown, P. Ercius, B. McMorran
    Microscopy and Microanalysis 28, 2504-2505 @@ -2251,7 +2538,7 @@
    Categories
    + Details @@ -2265,7 +2552,7 @@
    Categories
    +
  • Real-Time Interactive 4D-STEM Phase-Contrast Imaging From Electron Event Representation Data: Less computation with the right representation
    P. M. Pelz, I. Johnson, C. Ophus, P. Ercius, M. C. Scott
    IEEE Signal Processing Magazine 39, 25-31 @@ -2330,7 +2617,7 @@
    Categories
    - 3.0× field avg + 2.9× field avg @@ -2352,7 +2639,7 @@
    Categories
    + Details @@ -2366,7 +2653,7 @@
    Categories
    +
  • Simultaneous Successive Twinning Captured by Atomic Electron Tomography
    P. M. Pelz, C. Groschner, A. Bruefach, A. Satariano, C. Ophus, M. C. Scott
    ACS Nano 16, 588-596 @@ -2437,7 +2724,7 @@
    Categories
    - 3.0× field avg + 2.9× field avg @@ -2448,7 +2735,7 @@
    Categories
    + Open Access @@ -2459,7 +2746,7 @@
    Categories
    + Details @@ -2473,7 +2760,7 @@
    Categories
    +
  • Structured Illumination Electron Ptychography at the Atomic Scale
    P. Pelz, H. DeVyldere, P. Ercius, M. Scott
    Microscopy and Microanalysis 28, 388-390 @@ -2549,7 +2836,7 @@
    Categories
    + Details @@ -2563,7 +2850,7 @@
    Categories
    +
  • A Fast Algorithm for Scanning Transmission Electron Microscopy Imaging and 4D-STEM Diffraction Simulations
    P. M. Pelz, A. Rakowski, L. R. DaCosta, B. H. Savitzky, M. C. Scott, C. Ophus
    Microscopy and Microanalysis 27, 835-848 @@ -2628,7 +2915,7 @@
    Categories
    - 2.1× field avg + 2.0× field avg @@ -2660,7 +2947,7 @@
    Categories
    +
  • A faster image simulation algorithm for scanning transmission electron microscopy
    P. Pelz, L. DaCosta, A. M. Rakowski, M. Scott, C. Ophus
    Microscopy and Microanalysis 27, 1272-1275 @@ -2706,7 +2993,7 @@
    Categories
    + Details @@ -2720,7 +3007,61 @@
    Categories
    +
  • + Depth Resolution in Ptychography
    + T. U. o. Sheffield, S. You
    + Proceedings of the European Microscopy Congress 2020 + (2021)
    + + +
    + + Ptychography + +
    + + + + + +
    + + + + 0 + cits + + + + + + + + + + + + + + +
    + + + + Details + + + + DOI + + + + + + +
  • + +
  • Materials Science Applications and Analysis of Very Large 4D-STEM Experiments
    C. Ophus, B. Savitzky, P. Pelz, A. M. Rakowski, L. R. DaCosta, L. Hughes, S. Zeltmann, K. C. Bustillo, M. Scott, A. Minor
    Microscopy and Microanalysis 27, 14-15 @@ -2758,7 +3099,7 @@
    Categories
    + Details @@ -2772,7 +3113,7 @@
    Categories
    +
  • Phase-contrast imaging of multiply-scattering extended objects at atomic resolution by reconstruction of the scattering matrix
    P. M. Pelz, H. G. Brown, S. Stonemeyer, S. D. Findlay, A. Zettl, P. Ercius, Y. Zhang, J. Ciston, M. C. Scott, C. Ophus
    Physical Review Research 3 @@ -2857,7 +3198,7 @@
    Categories
    + Details @@ -2871,7 +3212,7 @@
    Categories
    +
  • Prismatic 2.0 – Simulation software for scanning and high resolution transmission electron microscopy (STEM and HRTEM)
    L. R. DaCosta, H. G. Brown, P. M. Pelz, A. Rakowski, N. Barber, P. O’Donovan, P. McBean, L. Jones, J. Ciston, M. Scott, C. Ophus
    Micron 151, 103141 @@ -2934,7 +3275,7 @@
    Categories
    - 10.6× field avg + 10.2× field avg @@ -2956,7 +3297,7 @@
    Categories
    + Details @@ -2970,7 +3311,7 @@
    Categories
    +
  • Py4DSTEM: A Software Package for Four-Dimensional Scanning Transmission Electron Microscopy Data Analysis
    B. H. Savitzky, S. E. Zeltmann, L. A. Hughes, H. G. Brown, S. Zhao, P. M. Pelz, T. C. Pekin, E. S. Barnard, J. Donohue, L. R. DaCosta, E. Kennedy, Y. Xie, M. T. Janish, M. M. Schneider, P. Herring, C. Gopal, A. Anapolsky, R. Dhall, K. C. Bustillo, P. Ercius, M. C. Scott, J. Ciston, A. M. Minor, C. Ophus
    Microscopy and Microanalysis 27, 712-743 @@ -2991,7 +3332,7 @@
    Categories
    - 345 + 350 cits @@ -3010,7 +3351,7 @@
    Categories
    - + @@ -3022,7 +3363,7 @@
    Categories
    - + @@ -3031,7 +3372,7 @@
    Categories
    - 28.8× field avg + 27.6× field avg @@ -3067,7 +3408,7 @@
    Categories
    +
  • Real-time interactive ptychography from electron event representation data
    P. Pelz, P. Ercius, C. Ophus, I. Johnson, M. Scott
    Microscopy and Microanalysis 27, 188-189 @@ -3147,7 +3488,7 @@
    Categories
    + Details @@ -3161,7 +3502,7 @@
    Categories
    +
  • Scalable multicomponent spectral analysis for high-throughput data annotation
    R. P. Xian, R. Ernstorfer, P. Pelz
    @@ -3230,7 +3571,7 @@
    Categories
    +
  • Scattering Matrix Determination in Crystalline Materials from 4D Scanning Transmission Electron Microscopy at a Single Defocus Value
    S. D. Findlay, H. G. Brown, P. M. Pelz, C. Ophus, J. Ciston, L. J. Allen
    Microscopy and Microanalysis 27, 744-757 @@ -3326,7 +3667,7 @@
    Categories
    +
  • smpr3d: an open-source toolkit for 3D phase-contrast imaging from 4D-STEM datasets
    P. Pelz, H. Brown, P. Ercius, I. Johnson, J. Ciston, M. Scott, C. Ophus
    Microscopy and Microanalysis 27, 1524-1526 @@ -3372,7 +3713,7 @@
    Categories
    + Details @@ -3386,7 +3727,7 @@
    Categories
    +
  • A single-projection three-dimensional reconstruction algorithm for scanning transmission electron microscopy data
    H. G. Brown, P. Pelz, S. Hsu, Z. Zhang, R. Ramesh, K. Inzani, E. Sheridan, S. M. Griffin, M. Schloz, T. C. Pekin, C. T. Koch, S. D. Findlay, L. J. Allen, M. Scott, C. Ophus, J. Ciston
    arXiv (Cornell University) @@ -3454,7 +3795,7 @@
    Categories
    +
  • Achieving High-resolution of Large Specimens Using Aberration-corrected Tomography
    R. Yalisove, S. H. Sung, J. Schwartz, C. Groschner, P. Pelz, H. Zheng, Y. Jiang, C. Ophus, M. Scott, P. Ercius, R. Hovden
    Microscopy and Microanalysis 26, 1860-1862 @@ -3512,7 +3853,7 @@
    Categories
    +
  • Improving the Speed and Accuracy of Large-scale Scanning Transmission Electron Microscopy (STEM) Electron Scattering Simulations
    C. Ophus, H. Brown, L. R. Dacosta, P. Pelz, J. Schwartz, R. Yalisove, R. Hovden, J. Ciston, B. Savitzky
    Microscopy and Microanalysis 26, 456-458 @@ -3606,7 +3947,7 @@
    Categories
    +
  • Phase Contrast Imaging in Thick, Heterogeneous Samples via S-Matrix Phase Retrieval and Depth Sectioning
    P. Pelz, H. Brown, S. Findlay, M. Scott, J. Ciston, C. Ophus
    Microscopy and Microanalysis 26, 462-464 @@ -3696,7 +4037,7 @@
    Categories
    +
  • Reconstructing the Scattering Matrix from Scanning Electron Diffraction Measurements Alone
    P. Pelz, H. G. Brown, J. Ciston, S. D. Findlay, Y. Zhang, M. Scott, C. Ophus
    arXiv (Cornell University) @@ -3790,7 +4131,7 @@
    Categories
    +
  • The 4D Camera – An 87 kHz Frame-rate Detector for Counted 4D-STEM Experiments
    P. Ercius, I. Johnson, H. Brown, P. Pelz, S. Hsu, B. Draney, E. Fong, A. Goldschmidt, J. Joseph, J. Lee, J. Ciston, C. Ophus, M. Scott, A. Selvarajan, D. Paul, D. Skinner, M. Hanwell, C. Harris, P. Avery, T. Stezelberger, C. Tindall, R. Ramesh, A. Minor, P. Denes
    Microscopy and Microanalysis 26, 1896-1897 @@ -3851,7 +4192,7 @@
    Categories
    - 6.4× field avg + 6.3× field avg @@ -3887,7 +4228,7 @@
    Categories
    +
  • 3D Imaging Using HAADF-STEM and HRTEM Atomic Electron Tomography
    C. Ophus, D. Ren, J. Zhou, H. Devyldere, M. Chen, P. M. Pelz, P. Ercius, J. Miao, M. Scott, L. Waller
    Microscopy and Microanalysis 25, 394-395 @@ -3949,7 +4290,7 @@
    Categories
    +
  • Advanced Phase Reconstruction Methods Enabled by Four-Dimensional Scanning Transmission Electron Microscopy
    C. Ophus, T. R. Harvey, F. S. Yasin, H. G. Brown, P. M. Pelz, B. H. Savitzky, J. Ciston, B. J. McMorran
    Microscopy and Microanalysis 25, 10-11 @@ -4041,7 +4382,7 @@
    Categories
    +
  • Electron Ptychography of Single Biological Macromolecules
    P. M. Pelz, R. Bücker, G. Ramm, H. Venugopal, G. Kassier, D. Eggert, P. Lu, R. E. Dunin-Borkowski, R. J. D. Miller
    Microscopy and Microanalysis 25, 72-73 @@ -4123,7 +4464,7 @@
    Categories
    +
  • Engineering Chiral Structures Through Strain Release: Electron Tomography Study of Twisted Nanowires
    X. Song, A. Bruefach, P. M. Pelz, H. Devyldere, M. Scott
    Microscopy and Microanalysis 25, 1804-1805 @@ -4215,7 +4556,7 @@
    Categories
    +
  • Towards Ptychography with Structured Illumination, and a Derivative-Based Reconstruction Algorithm
    W. V. d. Broek, M. Schloz, T. Pekin, P. Pelz, P. Lu, M. Kruth, V. Grillo, R. Dunin-Borkowski, R. Miller, C. Koch
    Microscopy and Microanalysis 25, 58-59 @@ -4297,7 +4638,7 @@
    Categories
    +
  • Low-dose cryo electron ptychography via non-convex Bayesian optimization
    P. M. Pelz, W. X. Qiu, R. Bücker, G. Kassier, R. J. D. Miller
    Scientific Reports 7 @@ -4322,7 +4663,7 @@
    Categories
    - 85 + 86 cits @@ -4353,7 +4694,7 @@
    Categories
    - + @@ -4362,7 +4703,7 @@
    Categories
    - 6.8× field avg + 7.1× field avg @@ -4398,7 +4739,7 @@
    Categories
    +
  • On-the-fly scans for X-ray ptychography
    P. M. Pelz, M. Guizar-Sicairos, P. Thibault, I. Johnson, M. Holler, A. Menzel
    Applied Physics Letters 105 @@ -4423,7 +4764,7 @@
    Categories
    - 141 + 142 cits @@ -4454,7 +4795,7 @@
    Categories
    - + @@ -4463,7 +4804,7 @@
    Categories
    - 10.2× field avg + 10.1× field avg @@ -4499,7 +4840,7 @@
    Categories
    +
  • Photo-double-ionization of ethylene and acetylene near threshold
    B. Gaire, S. Y. Lee, D. J. Haxton, P. M. Pelz, I. Bocharova, F. P. Sturm, N. Gehrken, M. Honig, M. Pitzer, D. Metz, H. Kim, M. Schöffler, R. Dörner, H. Gassert, S. Zeller, J. Voigtsberger, W. Cao, M. Zohrabi, J. Williams, A. Gatton, D. Reedy, C. Nook, T. Müller, A. L. Landers, C. L. Cocke, I. Ben-Itzhak, T. Jahnke, A. Belkacem, T. Weber
    Physical Review A 89 @@ -4570,7 +4911,7 @@
    Categories
    - 3.0× field avg + 3.2× field avg diff --git a/docs/publications/articles/19_depth_resolution_in_ptychography.html b/docs/publications/articles/19_depth_resolution_in_ptychography.html new file mode 100644 index 0000000..e6bc98c --- /dev/null +++ b/docs/publications/articles/19_depth_resolution_in_ptychography.html @@ -0,0 +1,740 @@ + + + + + + + + + + + +Depth Resolution in Ptychography – ECLIPSE Lab + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    Depth Resolution in Ptychography

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    ptychography
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    conference paper
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    Author
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    T. U. o. Sheffield, S. You

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    Doi
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    Keywords
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    Ptychography

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    Citation (APA 7)

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    Depth Resolution in Ptychography T. U. o. Sheffield, S. You Proceedings of the European Microscopy Congress 2020

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    Abstract

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    [Abstract will be added manually]

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    + + + + + + \ No newline at end of file diff --git a/docs/publications/articles/19_phase_contrast_imaging_of_multiply_scattering_exte.html b/docs/publications/articles/20_phase_contrast_imaging_of_multiply_scattering_exte.html similarity index 99% rename from docs/publications/articles/19_phase_contrast_imaging_of_multiply_scattering_exte.html rename to docs/publications/articles/20_phase_contrast_imaging_of_multiply_scattering_exte.html index 2f9fdf2..99b4d23 100644 --- a/docs/publications/articles/19_phase_contrast_imaging_of_multiply_scattering_exte.html +++ b/docs/publications/articles/20_phase_contrast_imaging_of_multiply_scattering_exte.html @@ -731,7 +731,7 @@

    Abstract

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    diff --git a/docs/publications/articles/20_real_time_interactive_ptychography_from_electron_e.html b/docs/publications/articles/21_real_time_interactive_ptychography_from_electron_e.html similarity index 99% rename from docs/publications/articles/20_real_time_interactive_ptychography_from_electron_e.html rename to docs/publications/articles/21_real_time_interactive_ptychography_from_electron_e.html index e592f05..1d5f31e 100644 --- a/docs/publications/articles/20_real_time_interactive_ptychography_from_electron_e.html +++ b/docs/publications/articles/21_real_time_interactive_ptychography_from_electron_e.html @@ -729,7 +729,7 @@

    Abstract

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    diff --git a/docs/publications/articles/21_materials_science_applications_and_analysis_of_ver.html b/docs/publications/articles/22_materials_science_applications_and_analysis_of_ver.html similarity index 99% rename from docs/publications/articles/21_materials_science_applications_and_analysis_of_ver.html rename to docs/publications/articles/22_materials_science_applications_and_analysis_of_ver.html index d4b4629..8a95972 100644 --- a/docs/publications/articles/21_materials_science_applications_and_analysis_of_ver.html +++ b/docs/publications/articles/22_materials_science_applications_and_analysis_of_ver.html @@ -720,7 +720,7 @@

    Abstract

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    diff --git a/docs/publications/articles/22_a_faster_image_simulation_algorithm_for_scanning_t.html b/docs/publications/articles/23_a_faster_image_simulation_algorithm_for_scanning_t.html similarity index 99% rename from docs/publications/articles/22_a_faster_image_simulation_algorithm_for_scanning_t.html rename to docs/publications/articles/23_a_faster_image_simulation_algorithm_for_scanning_t.html index 610866a..5fa031d 100644 --- a/docs/publications/articles/22_a_faster_image_simulation_algorithm_for_scanning_t.html +++ b/docs/publications/articles/23_a_faster_image_simulation_algorithm_for_scanning_t.html @@ -731,7 +731,7 @@

    Abstract

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    diff --git a/docs/publications/articles/23_smpr3d_an_open_source_toolkit_for_3d_phase_contras.html b/docs/publications/articles/24_smpr3d_an_open_source_toolkit_for_3d_phase_contras.html similarity index 99% rename from docs/publications/articles/23_smpr3d_an_open_source_toolkit_for_3d_phase_contras.html rename to docs/publications/articles/24_smpr3d_an_open_source_toolkit_for_3d_phase_contras.html index 50739ca..a5a2a26 100644 --- a/docs/publications/articles/23_smpr3d_an_open_source_toolkit_for_3d_phase_contras.html +++ b/docs/publications/articles/24_smpr3d_an_open_source_toolkit_for_3d_phase_contras.html @@ -729,7 +729,7 @@

    Abstract

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    diff --git a/docs/publications/articles/24_prismatic_20_simulation_software_for_scanning_and_.html b/docs/publications/articles/25_prismatic_20_simulation_software_for_scanning_and_.html similarity index 99% rename from docs/publications/articles/24_prismatic_20_simulation_software_for_scanning_and_.html rename to docs/publications/articles/25_prismatic_20_simulation_software_for_scanning_and_.html index 7cdab78..edcd344 100644 --- a/docs/publications/articles/24_prismatic_20_simulation_software_for_scanning_and_.html +++ b/docs/publications/articles/25_prismatic_20_simulation_software_for_scanning_and_.html @@ -732,7 +732,7 @@

    Abstract

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    Abstract

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    diff --git a/docs/publications/articles/26_real_time_interactive_4d_stem_phase_contrast_imagi.html b/docs/publications/articles/27_real_time_interactive_4d_stem_phase_contrast_imagi.html similarity index 99% rename from docs/publications/articles/26_real_time_interactive_4d_stem_phase_contrast_imagi.html rename to docs/publications/articles/27_real_time_interactive_4d_stem_phase_contrast_imagi.html index 4963429..c4180eb 100644 --- a/docs/publications/articles/26_real_time_interactive_4d_stem_phase_contrast_imagi.html +++ b/docs/publications/articles/27_real_time_interactive_4d_stem_phase_contrast_imagi.html @@ -731,7 +731,7 @@

    Abstract

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    diff --git a/docs/publications/articles/27_simultaneous_successive_twinning_captured_by_atomi.html b/docs/publications/articles/28_simultaneous_successive_twinning_captured_by_atomi.html similarity index 99% rename from docs/publications/articles/27_simultaneous_successive_twinning_captured_by_atomi.html rename to docs/publications/articles/28_simultaneous_successive_twinning_captured_by_atomi.html index 125a16c..27c4bf9 100644 --- a/docs/publications/articles/27_simultaneous_successive_twinning_captured_by_atomi.html +++ b/docs/publications/articles/28_simultaneous_successive_twinning_captured_by_atomi.html @@ -734,7 +734,7 @@

    Abstract

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    diff --git a/docs/publications/articles/28_structured_illumination_electron_ptychography_at_t.html b/docs/publications/articles/29_structured_illumination_electron_ptychography_at_t.html similarity index 99% rename from docs/publications/articles/28_structured_illumination_electron_ptychography_at_t.html rename to docs/publications/articles/29_structured_illumination_electron_ptychography_at_t.html index bcb4047..bfe8002 100644 --- a/docs/publications/articles/28_structured_illumination_electron_ptychography_at_t.html +++ b/docs/publications/articles/29_structured_illumination_electron_ptychography_at_t.html @@ -728,7 +728,7 @@

    Abstract

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    diff --git a/docs/publications/articles/29_qualitative_phase_contrast_imaging_using_interfero.html b/docs/publications/articles/30_qualitative_phase_contrast_imaging_using_interfero.html similarity index 99% rename from docs/publications/articles/29_qualitative_phase_contrast_imaging_using_interfero.html rename to docs/publications/articles/30_qualitative_phase_contrast_imaging_using_interfero.html index 58297df..edaa5dc 100644 --- a/docs/publications/articles/29_qualitative_phase_contrast_imaging_using_interfero.html +++ b/docs/publications/articles/30_qualitative_phase_contrast_imaging_using_interfero.html @@ -730,7 +730,7 @@

    Abstract

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    diff --git a/docs/publications/articles/30_observation_of_formation_and_local_structures_of_m.html b/docs/publications/articles/31_observation_of_formation_and_local_structures_of_m.html similarity index 99% rename from docs/publications/articles/30_observation_of_formation_and_local_structures_of_m.html rename to docs/publications/articles/31_observation_of_formation_and_local_structures_of_m.html index 0324e51..16018fd 100644 --- a/docs/publications/articles/30_observation_of_formation_and_local_structures_of_m.html +++ b/docs/publications/articles/31_observation_of_formation_and_local_structures_of_m.html @@ -731,7 +731,7 @@

    Abstract

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    diff --git a/docs/publications/articles/31_resolution_of_virtual_depth_sectioning_from_four_d.html b/docs/publications/articles/32_resolution_of_virtual_depth_sectioning_from_four_d.html similarity index 99% rename from docs/publications/articles/31_resolution_of_virtual_depth_sectioning_from_four_d.html rename to docs/publications/articles/32_resolution_of_virtual_depth_sectioning_from_four_d.html index 465f682..1170ae9 100644 --- a/docs/publications/articles/31_resolution_of_virtual_depth_sectioning_from_four_d.html +++ b/docs/publications/articles/32_resolution_of_virtual_depth_sectioning_from_four_d.html @@ -733,7 +733,7 @@

    Abstract

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    diff --git a/docs/publications/articles/32_imaging_the_electron_charge_density_in_monolayer_m.html b/docs/publications/articles/33_imaging_the_electron_charge_density_in_monolayer_m.html similarity index 99% rename from docs/publications/articles/32_imaging_the_electron_charge_density_in_monolayer_m.html rename to docs/publications/articles/33_imaging_the_electron_charge_density_in_monolayer_m.html index 17b02ac..633bd9d 100644 --- a/docs/publications/articles/32_imaging_the_electron_charge_density_in_monolayer_m.html +++ b/docs/publications/articles/33_imaging_the_electron_charge_density_in_monolayer_m.html @@ -733,7 +733,7 @@

    Abstract

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    diff --git a/docs/publications/articles/33_observation_of_simultaneous_successive_twinning_us.html b/docs/publications/articles/34_observation_of_simultaneous_successive_twinning_us.html similarity index 99% rename from docs/publications/articles/33_observation_of_simultaneous_successive_twinning_us.html rename to docs/publications/articles/34_observation_of_simultaneous_successive_twinning_us.html index 443c7aa..4b8dd95 100644 --- a/docs/publications/articles/33_observation_of_simultaneous_successive_twinning_us.html +++ b/docs/publications/articles/34_observation_of_simultaneous_successive_twinning_us.html @@ -730,7 +730,7 @@

    Abstract

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    diff --git a/docs/publications/articles/35_magnetic_phase_imaging_using_lorentz_near_field_el.html b/docs/publications/articles/35_magnetic_phase_imaging_using_lorentz_near_field_el.html new file mode 100644 index 0000000..44f6cca --- /dev/null +++ b/docs/publications/articles/35_magnetic_phase_imaging_using_lorentz_near_field_el.html @@ -0,0 +1,743 @@ + + + + + + + + + + + +Magnetic Phase Imaging using Lorentz Near-field Electron Ptychography – ECLIPSE Lab + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    Magnetic Phase Imaging using Lorentz Near-field Electron Ptychography

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    ptychography
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    imaging
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    optics
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    amplitude
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    diffraction
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    Author
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    S. You, P. Lu, A. Kovács, T. Schachinger, F. Allars, R. E. Dunin‐Borkowski, A. Maiden

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    Doi
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    Keywords
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    Optics, Ptychography, Amplitude, Diffraction

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    Citation (APA 7)

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    Magnetic Phase Imaging using Lorentz Near-field Electron Ptychography S. You, P. Lu, A. Kovács, T. Schachinger, F. Allars, R. E. Dunin‐Borkowski, A. Maiden arXiv (Cornell University)

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    Abstract

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    [Abstract will be added manually]

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    Abstract

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    Abstract

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    diff --git a/docs/publications/articles/36_using_4d_stem_to_measure_the_nanoscale_structure_o.html b/docs/publications/articles/38_using_4d_stem_to_measure_the_nanoscale_structure_o.html similarity index 99% rename from docs/publications/articles/36_using_4d_stem_to_measure_the_nanoscale_structure_o.html rename to docs/publications/articles/38_using_4d_stem_to_measure_the_nanoscale_structure_o.html index dabbea0..53ae82c 100644 --- a/docs/publications/articles/36_using_4d_stem_to_measure_the_nanoscale_structure_o.html +++ b/docs/publications/articles/38_using_4d_stem_to_measure_the_nanoscale_structure_o.html @@ -729,7 +729,7 @@

    Abstract

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    diff --git a/docs/publications/articles/37_using_a_fast_hybrid_pixel_detector_for_dose_effici.html b/docs/publications/articles/39_using_a_fast_hybrid_pixel_detector_for_dose_effici.html similarity index 99% rename from docs/publications/articles/37_using_a_fast_hybrid_pixel_detector_for_dose_effici.html rename to docs/publications/articles/39_using_a_fast_hybrid_pixel_detector_for_dose_effici.html index 8362148..458456f 100644 --- a/docs/publications/articles/37_using_a_fast_hybrid_pixel_detector_for_dose_effici.html +++ b/docs/publications/articles/39_using_a_fast_hybrid_pixel_detector_for_dose_effici.html @@ -732,7 +732,7 @@

    Abstract

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    diff --git a/docs/publications/articles/38_high_resolution_3d_phase_contrast_imaging_beyond_t.html b/docs/publications/articles/40_high_resolution_3d_phase_contrast_imaging_beyond_t.html similarity index 99% rename from docs/publications/articles/38_high_resolution_3d_phase_contrast_imaging_beyond_t.html rename to docs/publications/articles/40_high_resolution_3d_phase_contrast_imaging_beyond_t.html index f7b0a71..8a91e60 100644 --- a/docs/publications/articles/38_high_resolution_3d_phase_contrast_imaging_beyond_t.html +++ b/docs/publications/articles/40_high_resolution_3d_phase_contrast_imaging_beyond_t.html @@ -731,7 +731,7 @@

    Abstract

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    diff --git a/docs/publications/articles/41_lorentz_near_field_electron_ptychography.html b/docs/publications/articles/41_lorentz_near_field_electron_ptychography.html new file mode 100644 index 0000000..47bb91f --- /dev/null +++ b/docs/publications/articles/41_lorentz_near_field_electron_ptychography.html @@ -0,0 +1,743 @@ + + + + + + + + + + + +Lorentz near-field electron ptychography – ECLIPSE Lab + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    Lorentz near-field electron ptychography

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    ptychography
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    journal article
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    electron holography
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    optics
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    holography
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    Author
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    S. You, P. Lu, T. Schachinger, A. Kovács, R. E. Dunin-Borkowski, A. M. Maiden

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    Electron holography, Ptychography, Optics, Holography

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    Citation (APA 7)

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    Lorentz near-field electron ptychography S. You, P. Lu, T. Schachinger, A. Kovács, R. E. Dunin-Borkowski, A. M. Maiden Applied Physics Letters 123

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    Abstract

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    Over the past few years, electron ptychography has drawn considerable attention for its ability to recover high contrast and ultra-high resolution images without the need for high quality electron optics. In this Letter, we focus on electron ptychography’s other potential benefits: quantitatively mapping phase variations resulting from magnetic and electric fields over extended fields of view. To this end, we propose an implementation of near-field ptychography that employs an amplitude mask located in the electron microscope’s condenser aperture plane. We demonstrate the capabilities of our method by imaging a magnetic Permalloy sample and compare our results with those of off-axis electron holography.

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    + + + + + + \ No newline at end of file diff --git a/docs/publications/articles/39_analysis_of_strain_and_defects_in_tellurium_wse2_m.html b/docs/publications/articles/42_analysis_of_strain_and_defects_in_tellurium_wse2_m.html similarity index 99% rename from docs/publications/articles/39_analysis_of_strain_and_defects_in_tellurium_wse2_m.html rename to docs/publications/articles/42_analysis_of_strain_and_defects_in_tellurium_wse2_m.html index 024320b..c5bbe38 100644 --- a/docs/publications/articles/39_analysis_of_strain_and_defects_in_tellurium_wse2_m.html +++ b/docs/publications/articles/42_analysis_of_strain_and_defects_in_tellurium_wse2_m.html @@ -734,7 +734,7 @@

    Abstract

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    diff --git a/docs/publications/articles/40_solving_complex_nanostructures_with_ptychographic_.html b/docs/publications/articles/43_solving_complex_nanostructures_with_ptychographic_.html similarity index 99% rename from docs/publications/articles/40_solving_complex_nanostructures_with_ptychographic_.html rename to docs/publications/articles/43_solving_complex_nanostructures_with_ptychographic_.html index 5681eea..659ec38 100644 --- a/docs/publications/articles/40_solving_complex_nanostructures_with_ptychographic_.html +++ b/docs/publications/articles/43_solving_complex_nanostructures_with_ptychographic_.html @@ -735,7 +735,7 @@

    Abstract

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    diff --git a/docs/publications/articles/41_towards_in_situ_4d_stem_observation_of_texture_evo.html b/docs/publications/articles/44_towards_in_situ_4d_stem_observation_of_texture_evo.html similarity index 99% rename from docs/publications/articles/41_towards_in_situ_4d_stem_observation_of_texture_evo.html rename to docs/publications/articles/44_towards_in_situ_4d_stem_observation_of_texture_evo.html index de35325..e7d3231 100644 --- a/docs/publications/articles/41_towards_in_situ_4d_stem_observation_of_texture_evo.html +++ b/docs/publications/articles/44_towards_in_situ_4d_stem_observation_of_texture_evo.html @@ -731,7 +731,7 @@

    Abstract

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    diff --git a/docs/publications/articles/42_information_transfer_improvement_by_parallax_corre.html b/docs/publications/articles/45_information_transfer_improvement_by_parallax_corre.html similarity index 99% rename from docs/publications/articles/42_information_transfer_improvement_by_parallax_corre.html rename to docs/publications/articles/45_information_transfer_improvement_by_parallax_corre.html index 4bd652c..b485c9a 100644 --- a/docs/publications/articles/42_information_transfer_improvement_by_parallax_corre.html +++ b/docs/publications/articles/45_information_transfer_improvement_by_parallax_corre.html @@ -729,7 +729,7 @@

    Abstract

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    diff --git a/docs/publications/articles/43_using_phase_contrast_4d_stem_to_solve_3d_inorganic.html b/docs/publications/articles/46_using_phase_contrast_4d_stem_to_solve_3d_inorganic.html similarity index 99% rename from docs/publications/articles/43_using_phase_contrast_4d_stem_to_solve_3d_inorganic.html rename to docs/publications/articles/46_using_phase_contrast_4d_stem_to_solve_3d_inorganic.html index 97b3a03..8294bd6 100644 --- a/docs/publications/articles/43_using_phase_contrast_4d_stem_to_solve_3d_inorganic.html +++ b/docs/publications/articles/46_using_phase_contrast_4d_stem_to_solve_3d_inorganic.html @@ -732,7 +732,7 @@

    Abstract

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    diff --git a/docs/publications/articles/44_information_transfer_improvement_by_parallax_corre.html b/docs/publications/articles/47_information_transfer_improvement_by_parallax_corre.html similarity index 99% rename from docs/publications/articles/44_information_transfer_improvement_by_parallax_corre.html rename to docs/publications/articles/47_information_transfer_improvement_by_parallax_corre.html index fefbac5..3a4c053 100644 --- a/docs/publications/articles/44_information_transfer_improvement_by_parallax_corre.html +++ b/docs/publications/articles/47_information_transfer_improvement_by_parallax_corre.html @@ -729,7 +729,7 @@

    Abstract

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    diff --git a/docs/publications/articles/45_the_4d_camera_an_87_khz_direct_electron_detector_f.html b/docs/publications/articles/48_the_4d_camera_an_87_khz_direct_electron_detector_f.html similarity index 99% rename from docs/publications/articles/45_the_4d_camera_an_87_khz_direct_electron_detector_f.html rename to docs/publications/articles/48_the_4d_camera_an_87_khz_direct_electron_detector_f.html index 013c590..06436b7 100644 --- a/docs/publications/articles/45_the_4d_camera_an_87_khz_direct_electron_detector_f.html +++ b/docs/publications/articles/48_the_4d_camera_an_87_khz_direct_electron_detector_f.html @@ -733,7 +733,7 @@

    Abstract

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    diff --git a/docs/publications/articles/46_multi_slice_electron_ptychographic_tomography_for_.html b/docs/publications/articles/49_multi_slice_electron_ptychographic_tomography_for_.html similarity index 99% rename from docs/publications/articles/46_multi_slice_electron_ptychographic_tomography_for_.html rename to docs/publications/articles/49_multi_slice_electron_ptychographic_tomography_for_.html index c034114..a9571e2 100644 --- a/docs/publications/articles/46_multi_slice_electron_ptychographic_tomography_for_.html +++ b/docs/publications/articles/49_multi_slice_electron_ptychographic_tomography_for_.html @@ -722,7 +722,7 @@

    Abstract

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    diff --git "a/docs/publications/articles/47_near_isotropic_sub_\303\245ngstrom_3d_resolution_phase_co.html" "b/docs/publications/articles/50_near_isotropic_sub_\303\245ngstrom_3d_resolution_phase_co.html" similarity index 99% rename from "docs/publications/articles/47_near_isotropic_sub_\303\245ngstrom_3d_resolution_phase_co.html" rename to "docs/publications/articles/50_near_isotropic_sub_\303\245ngstrom_3d_resolution_phase_co.html" index b7896c2..014a719 100644 --- "a/docs/publications/articles/47_near_isotropic_sub_\303\245ngstrom_3d_resolution_phase_co.html" +++ "b/docs/publications/articles/50_near_isotropic_sub_\303\245ngstrom_3d_resolution_phase_co.html" @@ -734,7 +734,7 @@

    Abstract

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    diff --git "a/docs/publications/articles/48_sub_\303\245ngstrom_3d_resolution_volume_imaging_beyond_t.html" "b/docs/publications/articles/51_sub_\303\245ngstrom_3d_resolution_volume_imaging_beyond_t.html" similarity index 99% rename from "docs/publications/articles/48_sub_\303\245ngstrom_3d_resolution_volume_imaging_beyond_t.html" rename to "docs/publications/articles/51_sub_\303\245ngstrom_3d_resolution_volume_imaging_beyond_t.html" index 5c3fd8d..9d0b68d 100644 --- "a/docs/publications/articles/48_sub_\303\245ngstrom_3d_resolution_volume_imaging_beyond_t.html" +++ "b/docs/publications/articles/51_sub_\303\245ngstrom_3d_resolution_volume_imaging_beyond_t.html" @@ -730,7 +730,7 @@

    Abstract

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    diff --git a/docs/publications/articles/52_electron_ptychography_in_the_fresnel_diffraction_r.html b/docs/publications/articles/52_electron_ptychography_in_the_fresnel_diffraction_r.html new file mode 100644 index 0000000..ec0b27d --- /dev/null +++ b/docs/publications/articles/52_electron_ptychography_in_the_fresnel_diffraction_r.html @@ -0,0 +1,741 @@ + + + + + + + + + + + +Electron Ptychography in the Fresnel Diffraction Regime – ECLIPSE Lab + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    Electron Ptychography in the Fresnel Diffraction Regime

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    ptychography
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    physics
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    fresnel diffraction
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    Author
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    A. Maiden, P. Lu, S. You, F. Allars

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    Keywords
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    Ptychography, Fresnel diffraction

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    Citation (APA 7)

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    Electron Ptychography in the Fresnel Diffraction Regime A. Maiden, P. Lu, S. You, F. Allars Microscopy and Microanalysis 31

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    Abstract

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    [Abstract will be added manually]

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    + + + + + + \ No newline at end of file diff --git a/docs/publications/articles/49_identification_of_polytypism_and_their_dislocation.html b/docs/publications/articles/53_identification_of_polytypism_and_their_dislocation.html similarity index 99% rename from docs/publications/articles/49_identification_of_polytypism_and_their_dislocation.html rename to docs/publications/articles/53_identification_of_polytypism_and_their_dislocation.html index 9e535a0..687d543 100644 --- a/docs/publications/articles/49_identification_of_polytypism_and_their_dislocation.html +++ b/docs/publications/articles/53_identification_of_polytypism_and_their_dislocation.html @@ -731,7 +731,7 @@

    Abstract

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    diff --git a/docs/publications/articles/50_kinetically_controlled_seed_mediated_synthesis_of_.html b/docs/publications/articles/54_kinetically_controlled_seed_mediated_synthesis_of_.html similarity index 99% rename from docs/publications/articles/50_kinetically_controlled_seed_mediated_synthesis_of_.html rename to docs/publications/articles/54_kinetically_controlled_seed_mediated_synthesis_of_.html index 97c23d3..c5789d2 100644 --- a/docs/publications/articles/50_kinetically_controlled_seed_mediated_synthesis_of_.html +++ b/docs/publications/articles/54_kinetically_controlled_seed_mediated_synthesis_of_.html @@ -732,7 +732,7 @@

    Abstract

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    diff --git a/docs/publications/articles/51_gap_free_information_transfer_in_4d_stem_via_fusio.html b/docs/publications/articles/55_gap_free_information_transfer_in_4d_stem_via_fusio.html similarity index 98% rename from docs/publications/articles/51_gap_free_information_transfer_in_4d_stem_via_fusio.html rename to docs/publications/articles/55_gap_free_information_transfer_in_4d_stem_via_fusio.html index ec6c74f..99a2a8a 100644 --- a/docs/publications/articles/51_gap_free_information_transfer_in_4d_stem_via_fusio.html +++ b/docs/publications/articles/55_gap_free_information_transfer_in_4d_stem_via_fusio.html @@ -7,6 +7,7 @@ + Gap‐Free Information Transfer in 4D‐STEM via Fusion of Complementary Scattering Channels – ECLIPSE Lab + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    Transverse quantum-state characterization of programmable electron optics

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    research
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    S. You, P. Rosi, E. Rotunno, A. Roncaglia, L. Belsito, A. H. Tavabi, R. E. Dunin-Borkowski, V. Grillo, P. M. Pelz

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    Citation (APA 7)

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    Transverse quantum-state characterization of programmable electron optics S. You, P. Rosi, E. Rotunno, A. Roncaglia, L. Belsito, A. H. Tavabi, R. E. Dunin-Borkowski, V. Grillo, P. M. Pelz arXiv (Cornell University)

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    Abstract

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    [Abstract will be added manually]

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    + + + + + + \ No newline at end of file diff --git a/docs/search.json b/docs/search.json index a952d65..551383f 100644 --- a/docs/search.json +++ b/docs/search.json @@ -357,25 +357,46 @@ "text": "Email Us\nEmail link requires JavaScript." }, { - "objectID": "publications/articles/26_real_time_interactive_4d_stem_phase_contrast_imagi.html", - "href": "publications/articles/26_real_time_interactive_4d_stem_phase_contrast_imagi.html", - "title": "Real-Time Interactive 4D-STEM Phase-Contrast Imaging From Electron Event Representation Data: Less computation with the right representation", + "objectID": "publications/articles/01_on_the_fly_scans_for_x_ray_ptychography.html", + "href": "publications/articles/01_on_the_fly_scans_for_x_ray_ptychography.html", + "title": "On-the-fly scans for X-ray ptychography", "section": "", - "text": "Real-Time Interactive 4D-STEM Phase-Contrast Imaging From Electron Event Representation Data: Less computation with the right representation P. M. Pelz, I. Johnson, C. Ophus, P. Ercius, M. C. Scott IEEE Signal Processing Magazine 39, 25-31" + "text": "On-the-fly scans for X-ray ptychography P. M. Pelz, M. Guizar-Sicairos, P. Thibault, I. Johnson, M. Holler, A. Menzel Applied Physics Letters 105" }, { - "objectID": "publications/articles/26_real_time_interactive_4d_stem_phase_contrast_imagi.html#citation-apa-7", - "href": "publications/articles/26_real_time_interactive_4d_stem_phase_contrast_imagi.html#citation-apa-7", - "title": "Real-Time Interactive 4D-STEM Phase-Contrast Imaging From Electron Event Representation Data: Less computation with the right representation", + "objectID": "publications/articles/01_on_the_fly_scans_for_x_ray_ptychography.html#citation-apa-7", + "href": "publications/articles/01_on_the_fly_scans_for_x_ray_ptychography.html#citation-apa-7", + "title": "On-the-fly scans for X-ray ptychography", "section": "", - "text": "Real-Time Interactive 4D-STEM Phase-Contrast Imaging From Electron Event Representation Data: Less computation with the right representation P. M. Pelz, I. Johnson, C. Ophus, P. Ercius, M. C. Scott IEEE Signal Processing Magazine 39, 25-31" + "text": "On-the-fly scans for X-ray ptychography P. M. Pelz, M. Guizar-Sicairos, P. Thibault, I. Johnson, M. Holler, A. Menzel Applied Physics Letters 105" }, { - "objectID": "publications/articles/26_real_time_interactive_4d_stem_phase_contrast_imagi.html#abstract", - "href": "publications/articles/26_real_time_interactive_4d_stem_phase_contrast_imagi.html#abstract", - "title": "Real-Time Interactive 4D-STEM Phase-Contrast Imaging From Electron Event Representation Data: Less computation with the right representation", + "objectID": "publications/articles/01_on_the_fly_scans_for_x_ray_ptychography.html#abstract", + "href": "publications/articles/01_on_the_fly_scans_for_x_ray_ptychography.html#abstract", + "title": "On-the-fly scans for X-ray ptychography", "section": "Abstract", - "text": "Abstract\n[Abstract will be added manually]" + "text": "Abstract\nWith the increasing importance of nanotechnology, the need for reliable real-time imaging of mesoscopic objects with nanometer resolution is rising. For X-ray ptychography, a scanning microscopy technique that provides nanometric resolution on extended fields of view, and the settling time of the scanning system is one of the bottlenecks for fast imaging. Here, we demonstrate that ptychographic on-the-fly scans, i.e., collecting diffraction patterns while the sample is scanned with constant velocity, can be modelled as a state mixture of the probing radiation and allow for reliable image recovery. Characteristics of the probe modes are discussed for various scan parameters, and the application to significantly reducing the scanning time is considered." + }, + { + "objectID": "publications/articles/39_using_a_fast_hybrid_pixel_detector_for_dose_effici.html", + "href": "publications/articles/39_using_a_fast_hybrid_pixel_detector_for_dose_effici.html", + "title": "Using a fast hybrid pixel detector for dose-efficient diffraction imaging beam-sensitive organic molecular thin films", + "section": "", + "text": "Using a fast hybrid pixel detector for dose-efficient diffraction imaging beam-sensitive organic molecular thin films M. Wu, D. G. Stroppa, P. Pelz, E. Spiecker Journal of Physics: Materials 6, 045008" + }, + { + "objectID": "publications/articles/39_using_a_fast_hybrid_pixel_detector_for_dose_effici.html#citation-apa-7", + "href": "publications/articles/39_using_a_fast_hybrid_pixel_detector_for_dose_effici.html#citation-apa-7", + "title": "Using a fast hybrid pixel detector for dose-efficient diffraction imaging beam-sensitive organic molecular thin films", + "section": "", + "text": "Using a fast hybrid pixel detector for dose-efficient diffraction imaging beam-sensitive organic molecular thin films M. Wu, D. G. Stroppa, P. Pelz, E. Spiecker Journal of Physics: Materials 6, 045008" + }, + { + "objectID": "publications/articles/39_using_a_fast_hybrid_pixel_detector_for_dose_effici.html#abstract", + "href": "publications/articles/39_using_a_fast_hybrid_pixel_detector_for_dose_effici.html#abstract", + "title": "Using a fast hybrid pixel detector for dose-efficient diffraction imaging beam-sensitive organic molecular thin films", + "section": "Abstract", + "text": "Abstract\nWe discuss the benefits and showcase the applications of using a fast, hybrid-pixel detector (HPD) for 4D-STEM experiments and emphasize that in diffraction imaging the structure of molecular nano-crystallites in organic solar cell thin films with a dose-efficient modality 4D-scanning confocal electron diffraction (4D-SCED). With 4D-SCED, spot diffraction patterns form from an interaction area of a few nm while the electron beam rasters over the sample, resulting in high dose effectiveness yet highly demanding on the detector in frame speed, sensitivity, and single-pixel count rate. We compare the datasets acquired with 4D-SCED using a fast HPD with those using state-of-the-art complementary metal-oxide-semiconductor (CMOS) cameras to map the in-plane orientation of π-stacking nano-crystallites of small molecule DRCN5T in a blend of DRCN5T: PC71BM after solvent vapor annealing. The high-speed CMOS camera, using a scintillator optimized for low doses, showed impressive results for electron sensitivity and low noise. However, the limited speed restricted practical experimental conditions and caused unintended damage to small and weak nano-crystallites. The fast HPD, with a speed three orders of magnitude higher, allows a much higher probe current yet a lower total dose on the sample, and more scan points cover a large field of view in less time. A lot more faint diffraction signals that correspond to just a few electron events are detected. The improved performance of direct electron detectors opens more possibilities to enhance the characterization of beam-sensitive materials using 4D-STEM techniques." }, { "objectID": "publications/articles/04_advanced_phase_reconstruction_methods_enabled_by_f.html", @@ -399,25 +420,67 @@ "text": "Abstract\nBy converging an electron probe to small dimensions and measuring the diffracted signal, we can measure atomic-scale information about a sample’s structure, orientation, deformation, composition, and more. A measurement of full 2D diffraction images over a 2D grid of probe positions produces a 4D dataset, referred to as four-dimensional scanning transmission electron microscopy (4D-STEM). With modern electron detectors, we can now measure thousands of diffraction patterns, which enables many new imaging methods. A large class of useful 4D-STEM imaging modes produce phase contrast images of specimens, for example differential phase contrast (DPC) and ptychography [1]. By combining 4DSTEM with phase plates, additional phase contrast imaging methods become possible [2]. The first topic of this talk will be to describe a related phase plate method called STEM holography (STEM-H) [3, 4], and its extension using ptychographic reconstruction. STEM-H is performed by using a diffraction grating in the probe forming aperture to produce multiple STEM beams, and then using a pixelated detector to measure the holographic fringe patterns, shown in Figure 1a. The primary advantage of STEM-H is that it produces phase contrast images on an absolute scale, which for example can be used to measure weak, extended electrostatic or electromagnetic fields as in Figures 1b. There, we see that for a conductive lacey carbon sample both the HAADF intensity and STEM-H phase shift show a similar decay into the vacuum. By contrast, for a semiconducting nanoparticle sample, we measure a phase shift due to an electrostatic field extending from the vacuum edge beyond the sample, which does not generate contrast in the HAADF channel. We have also extended STEM-H imaging to atomic resolution, shown in Figure 1c. STEM-H can quantitatively image the absolute phase shift of a sample, with the simple addition of a diffraction grating and large area, high speed direct electron detector." }, { - "objectID": "publications/articles/41_towards_in_situ_4d_stem_observation_of_texture_evo.html", - "href": "publications/articles/41_towards_in_situ_4d_stem_observation_of_texture_evo.html", - "title": "Towards in-situ 4D-STEM observation of texture evolution in nano-crystalline thin films", + "objectID": "publications/articles/25_prismatic_20_simulation_software_for_scanning_and_.html", + "href": "publications/articles/25_prismatic_20_simulation_software_for_scanning_and_.html", + "title": "Prismatic 2.0 – Simulation software for scanning and high resolution transmission electron microscopy (STEM and HRTEM)", "section": "", - "text": "Towards in-situ 4D-STEM observation of texture evolution in nano-crystalline thin films M. Wu, C. Hsieh, D. Stroppa, P. Pelz, C. Ophus, P. Lu, R. Dunin-Borkowski, C. Harreiss, P. Denninger, E. Spiecker BIO Web of Conferences 129, 07006" + "text": "Prismatic 2.0 – Simulation software for scanning and high resolution transmission electron microscopy (STEM and HRTEM) L. R. DaCosta, H. G. Brown, P. M. Pelz, A. Rakowski, N. Barber, P. O’Donovan, P. McBean, L. Jones, J. Ciston, M. Scott, C. Ophus Micron 151, 103141" }, { - "objectID": "publications/articles/41_towards_in_situ_4d_stem_observation_of_texture_evo.html#citation-apa-7", - "href": "publications/articles/41_towards_in_situ_4d_stem_observation_of_texture_evo.html#citation-apa-7", - "title": "Towards in-situ 4D-STEM observation of texture evolution in nano-crystalline thin films", + "objectID": "publications/articles/25_prismatic_20_simulation_software_for_scanning_and_.html#citation-apa-7", + "href": "publications/articles/25_prismatic_20_simulation_software_for_scanning_and_.html#citation-apa-7", + "title": "Prismatic 2.0 – Simulation software for scanning and high resolution transmission electron microscopy (STEM and HRTEM)", "section": "", - "text": "Towards in-situ 4D-STEM observation of texture evolution in nano-crystalline thin films M. Wu, C. Hsieh, D. Stroppa, P. Pelz, C. Ophus, P. Lu, R. Dunin-Borkowski, C. Harreiss, P. Denninger, E. Spiecker BIO Web of Conferences 129, 07006" + "text": "Prismatic 2.0 – Simulation software for scanning and high resolution transmission electron microscopy (STEM and HRTEM) L. R. DaCosta, H. G. Brown, P. M. Pelz, A. Rakowski, N. Barber, P. O’Donovan, P. McBean, L. Jones, J. Ciston, M. Scott, C. Ophus Micron 151, 103141" }, { - "objectID": "publications/articles/41_towards_in_situ_4d_stem_observation_of_texture_evo.html#abstract", - "href": "publications/articles/41_towards_in_situ_4d_stem_observation_of_texture_evo.html#abstract", - "title": "Towards in-situ 4D-STEM observation of texture evolution in nano-crystalline thin films", + "objectID": "publications/articles/25_prismatic_20_simulation_software_for_scanning_and_.html#abstract", + "href": "publications/articles/25_prismatic_20_simulation_software_for_scanning_and_.html#abstract", + "title": "Prismatic 2.0 – Simulation software for scanning and high resolution transmission electron microscopy (STEM and HRTEM)", "section": "Abstract", - "text": "Abstract\nTexture describes the preferred orientation of grains in crystalline materials, which dictates their anisotropic, for example, (opto-)electronic, thermal transport, and mechanical properties. The texture is evaluated conventionally by probing the reciprocal space using X-ray and/or electron diffraction methods, where spatial information, e.g., the orientation relationship of particular grains, is hardly accessible. Probing the local diffraction pattern with a focused electron beam, i" + "text": "Abstract\nScanning transmission electron microscopy (STEM), where a converged electron probe is scanned over a sample’s surface and an imaging, diffraction, or spectroscopic signal is measured as a function of probe position, is an extremely powerful tool for materials characterization. The widespread adoption of hardware aberration correction, direct electron detectors, and computational imaging methods have made STEM one of the most important tools for atomic-resolution materials science. Many of these imaging methods rely on accurate imaging and diffraction simulations in order to interpret experimental results. However, STEM simulations have traditionally required large calculation times, as modeling the electron scattering requires a separate simulation for each of the typically millions of probe positions. We have created the Prismatic simulation code for fast simulation of STEM experiments with support for multi-CPU and multi-GPU (graphics processing unit) systems, using both the conventional multislice and our recently-introduced PRISM method. In this paper, we introduce Prismatic version 2.0, which adds many new algorithmic improvements, an updated graphical user interface (GUI), post-processing of simulation data, and additional operating modes such as plane-wave TEM. We review various aspects of the simulation methods and codes in detail and provide various simulation examples. Prismatic 2.0 is freely available both as an open-source package that can be run using a C++ or Python command line interface, or GUI, as well within a Docker container environment." + }, + { + "objectID": "publications/articles/29_structured_illumination_electron_ptychography_at_t.html", + "href": "publications/articles/29_structured_illumination_electron_ptychography_at_t.html", + "title": "Structured Illumination Electron Ptychography at the Atomic Scale", + "section": "", + "text": "Structured Illumination Electron Ptychography at the Atomic Scale P. Pelz, H. DeVyldere, P. Ercius, M. Scott Microscopy and Microanalysis 28, 388-390" + }, + { + "objectID": "publications/articles/29_structured_illumination_electron_ptychography_at_t.html#citation-apa-7", + "href": "publications/articles/29_structured_illumination_electron_ptychography_at_t.html#citation-apa-7", + "title": "Structured Illumination Electron Ptychography at the Atomic Scale", + "section": "", + "text": "Structured Illumination Electron Ptychography at the Atomic Scale P. Pelz, H. DeVyldere, P. Ercius, M. Scott Microscopy and Microanalysis 28, 388-390" + }, + { + "objectID": "publications/articles/29_structured_illumination_electron_ptychography_at_t.html#abstract", + "href": "publications/articles/29_structured_illumination_electron_ptychography_at_t.html#abstract", + "title": "Structured Illumination Electron Ptychography at the Atomic Scale", + "section": "Abstract", + "text": "Abstract\nWith the advent of fast direct electron detectors, electron ptychography is becoming increasingly popular as a high-resolution, high-sensitivity phase-contrast method in electron microscopy. Electron ptychography is a computational phase-contrast imaging method that reconstructs phase-contrast images from scanning diffraction measurements, acquired by raster-scanning a spatially confined beam over the field of view." + }, + { + "objectID": "publications/articles/26_a_three_dimensional_reconstruction_algorithm_for_s.html", + "href": "publications/articles/26_a_three_dimensional_reconstruction_algorithm_for_s.html", + "title": "A Three-Dimensional Reconstruction Algorithm for Scanning Transmission Electron Microscopy Data from a Single Sample Orientation", + "section": "", + "text": "A Three-Dimensional Reconstruction Algorithm for Scanning Transmission Electron Microscopy Data from a Single Sample Orientation H. G. Brown, P. M. Pelz, S. Hsu, Z. Zhang, R. Ramesh, K. Inzani, E. Sheridan, S. M. Griffin, M. Schloz, T. C. Pekin, C. T. Koch, S. D. Findlay, L. J. Allen, M. C. Scott, C. Ophus, J. Ciston Microscopy and Microanalysis 28, 1632-1640" + }, + { + "objectID": "publications/articles/26_a_three_dimensional_reconstruction_algorithm_for_s.html#citation-apa-7", + "href": "publications/articles/26_a_three_dimensional_reconstruction_algorithm_for_s.html#citation-apa-7", + "title": "A Three-Dimensional Reconstruction Algorithm for Scanning Transmission Electron Microscopy Data from a Single Sample Orientation", + "section": "", + "text": "A Three-Dimensional Reconstruction Algorithm for Scanning Transmission Electron Microscopy Data from a Single Sample Orientation H. G. Brown, P. M. Pelz, S. Hsu, Z. Zhang, R. Ramesh, K. Inzani, E. Sheridan, S. M. Griffin, M. Schloz, T. C. Pekin, C. T. Koch, S. D. Findlay, L. J. Allen, M. C. Scott, C. Ophus, J. Ciston Microscopy and Microanalysis 28, 1632-1640" + }, + { + "objectID": "publications/articles/26_a_three_dimensional_reconstruction_algorithm_for_s.html#abstract", + "href": "publications/articles/26_a_three_dimensional_reconstruction_algorithm_for_s.html#abstract", + "title": "A Three-Dimensional Reconstruction Algorithm for Scanning Transmission Electron Microscopy Data from a Single Sample Orientation", + "section": "Abstract", + "text": "Abstract\nIncreasing interest in three-dimensional nanostructures adds impetus to electron microscopy techniques capable of imaging at or below the nanoscale in three dimensions. We present a reconstruction algorithm that takes as input a focal series of four-dimensional scanning transmission electron microscopy (4D-STEM) data. We apply the approach to a lead iridate, PbIrO, and yttrium-stabilized zirconia, YZrO, heterostructure from data acquired with the specimen in a single plan-view orientation, with the epitaxial layers stacked along the beam direction. We demonstrate that Pb–Ir atomic columns are visible in the uppermost layers of the reconstructed volume. We compare this approach to the alternative techniques of depth sectioning using differential phase contrast scanning transmission electron microscopy (DPC-STEM) and multislice ptychographic reconstruction." }, { "objectID": "publications/articles/09_the_4d_camera_an_87_khz_frame_rate_detector_for_co.html", @@ -441,172 +504,214 @@ "text": "Abstract\n," }, { - "objectID": "publications/articles/16_py4dstem_a_software_package_for_four_dimensional_s.html", - "href": "publications/articles/16_py4dstem_a_software_package_for_four_dimensional_s.html", - "title": "Py4DSTEM: A Software Package for Four-Dimensional Scanning Transmission Electron Microscopy Data Analysis", + "objectID": "publications/articles/47_information_transfer_improvement_by_parallax_corre.html", + "href": "publications/articles/47_information_transfer_improvement_by_parallax_corre.html", + "title": "Information Transfer Improvement by Parallax Correction and Ptychography Reconstruction Applied to Fast Large-Area 4D STEM Experiments", "section": "", - "text": "Py4DSTEM: A Software Package for Four-Dimensional Scanning Transmission Electron Microscopy Data Analysis B. H. Savitzky, S. E. Zeltmann, L. A. Hughes, H. G. Brown, S. Zhao, P. M. Pelz, T. C. Pekin, E. S. Barnard, J. Donohue, L. R. DaCosta, E. Kennedy, Y. Xie, M. T. Janish, M. M. Schneider, P. Herring, C. Gopal, A. Anapolsky, R. Dhall, K. C. Bustillo, P. Ercius, M. C. Scott, J. Ciston, A. M. Minor, C. Ophus Microscopy and Microanalysis 27, 712-743" + "text": "Information Transfer Improvement by Parallax Correction and Ptychography Reconstruction Applied to Fast Large-Area 4D STEM Experiments D. G. Stroppa, S. Ribet, G. Varnavides, C. Ophus, P. Pelz Microscopy and Microanalysis 30" }, { - "objectID": "publications/articles/16_py4dstem_a_software_package_for_four_dimensional_s.html#citation-apa-7", - "href": "publications/articles/16_py4dstem_a_software_package_for_four_dimensional_s.html#citation-apa-7", - "title": "Py4DSTEM: A Software Package for Four-Dimensional Scanning Transmission Electron Microscopy Data Analysis", + "objectID": "publications/articles/47_information_transfer_improvement_by_parallax_corre.html#citation-apa-7", + "href": "publications/articles/47_information_transfer_improvement_by_parallax_corre.html#citation-apa-7", + "title": "Information Transfer Improvement by Parallax Correction and Ptychography Reconstruction Applied to Fast Large-Area 4D STEM Experiments", "section": "", - "text": "Py4DSTEM: A Software Package for Four-Dimensional Scanning Transmission Electron Microscopy Data Analysis B. H. Savitzky, S. E. Zeltmann, L. A. Hughes, H. G. Brown, S. Zhao, P. M. Pelz, T. C. Pekin, E. S. Barnard, J. Donohue, L. R. DaCosta, E. Kennedy, Y. Xie, M. T. Janish, M. M. Schneider, P. Herring, C. Gopal, A. Anapolsky, R. Dhall, K. C. Bustillo, P. Ercius, M. C. Scott, J. Ciston, A. M. Minor, C. Ophus Microscopy and Microanalysis 27, 712-743" + "text": "Information Transfer Improvement by Parallax Correction and Ptychography Reconstruction Applied to Fast Large-Area 4D STEM Experiments D. G. Stroppa, S. Ribet, G. Varnavides, C. Ophus, P. Pelz Microscopy and Microanalysis 30" }, { - "objectID": "publications/articles/16_py4dstem_a_software_package_for_four_dimensional_s.html#abstract", - "href": "publications/articles/16_py4dstem_a_software_package_for_four_dimensional_s.html#abstract", - "title": "Py4DSTEM: A Software Package for Four-Dimensional Scanning Transmission Electron Microscopy Data Analysis", + "objectID": "publications/articles/47_information_transfer_improvement_by_parallax_corre.html#abstract", + "href": "publications/articles/47_information_transfer_improvement_by_parallax_corre.html#abstract", + "title": "Information Transfer Improvement by Parallax Correction and Ptychography Reconstruction Applied to Fast Large-Area 4D STEM Experiments", "section": "Abstract", - "text": "Abstract\nScanning transmission electron microscopy (STEM) allows for imaging, diffraction, and spectroscopy of materials on length scales ranging from microns to atoms. By using a high-speed, direct electron detector, it is now possible to record a full two-dimensional (2D) image of the diffracted electron beam at each probe position, typically a 2D grid of probe positions. These 4D-STEM datasets are rich in information, including signatures of the local structure, orientation, deformation, electromagnetic fields, and other sample-dependent properties. However, extracting this information requires complex analysis pipelines that include data wrangling, calibration, analysis, and visualization, all while maintaining robustness against imaging distortions and artifacts. In this paper, we present py4DSTEM, an analysis toolkit for measuring material properties from 4D-STEM datasets, written in the Python language and released with an open-source license. We describe the algorithmic steps for dataset calibration and various 4D-STEM property measurements in detail and present results from several experimental datasets. We also implement a simple and universal file format appropriate for electron microscopy data in py4DSTEM, which uses the open-source HDF5 standard. We hope this tool will benefit the research community and help improve the standards for data and computational methods in electron microscopy, and we invite the community to contribute to this ongoing project." + "text": "Abstract\nScanning Transmission Electron Microscopy (STEM) is currently a reference technique for high spatial resolution imaging, with wide adoption in the characterization of material science samples and with growing use in life science studies. 4D-STEM [1] approach presents a more detailed recording of the electron scattering pattern using pixelated electron detectors and extends the imaging possibilities by combining the real-space scanning and reciprocal-space scattering components. Recent improvements in the direct electron detector technology allow 4D-STEM experiments at similar speeds to STEM imaging [2], and motivates its exploration as a possible substitute to conventional imaging. This study addresses the information retrieval from 4D STEM datasets using virtual bright field imaging, parallax-corrected phase imaging, and ptychography reconstruction. Large fields-of-view (> 500 nm) of reference samples were measured with fast 4D-STEM (10 µs dwell time), moderate defocus (~100 nm), and scanning sampling between 0.3 and 2.4 nm/pixel. The 4D STEM datasets were processed with the open-source python-based py4DSTEM package [3, 4], including the preliminary assessment and subset selection by virtual STEM images. Defocused probe parallax imaging and a ptychographic gradient descent method were used to correct probe aberrations, particularly defocus. These methods resulted in reconstructed images with effective upsampling, due to the information retrieval from both real and reciprocal spaces. While the 4D STEM reconstruction with a virtual BF approach resulted in an image with spatial resolution limited by either probe aberration or sampling, equivalent to conventional BF STEM imaging, both parallax-corrected phase imaging and ptychography reconstruction allowed for information retrieval down to lattice level (< 0.2 nm). The findings indicate that 4D STEM reconstruction methods can yield resolution beyond real-space sampling, possibly limited by the effective electron dose used in fast 4D STEM experiments. A current challenge is to extend and optimize these image reconstruction methods to recover resolution from the full field of view of such large-area scans. However, with the increasing efficiency and" }, { - "objectID": "publications/articles/08_3d_imaging_using_haadf_stem_and_hrtem_atomic_elect.html", - "href": "publications/articles/08_3d_imaging_using_haadf_stem_and_hrtem_atomic_elect.html", - "title": "3D Imaging Using HAADF-STEM and HRTEM Atomic Electron Tomography", + "objectID": "publications/articles/07_engineering_chiral_structures_through_strain_relea.html", + "href": "publications/articles/07_engineering_chiral_structures_through_strain_relea.html", + "title": "Engineering Chiral Structures Through Strain Release: Electron Tomography Study of Twisted Nanowires", "section": "", - "text": "3D Imaging Using HAADF-STEM and HRTEM Atomic Electron Tomography C. Ophus, D. Ren, J. Zhou, H. Devyldere, M. Chen, P. M. Pelz, P. Ercius, J. Miao, M. Scott, L. Waller Microscopy and Microanalysis 25, 394-395" + "text": "Engineering Chiral Structures Through Strain Release: Electron Tomography Study of Twisted Nanowires X. Song, A. Bruefach, P. M. Pelz, H. Devyldere, M. Scott Microscopy and Microanalysis 25, 1804-1805" }, { - "objectID": "publications/articles/08_3d_imaging_using_haadf_stem_and_hrtem_atomic_elect.html#citation-apa-7", - "href": "publications/articles/08_3d_imaging_using_haadf_stem_and_hrtem_atomic_elect.html#citation-apa-7", - "title": "3D Imaging Using HAADF-STEM and HRTEM Atomic Electron Tomography", + "objectID": "publications/articles/07_engineering_chiral_structures_through_strain_relea.html#citation-apa-7", + "href": "publications/articles/07_engineering_chiral_structures_through_strain_relea.html#citation-apa-7", + "title": "Engineering Chiral Structures Through Strain Release: Electron Tomography Study of Twisted Nanowires", "section": "", - "text": "3D Imaging Using HAADF-STEM and HRTEM Atomic Electron Tomography C. Ophus, D. Ren, J. Zhou, H. Devyldere, M. Chen, P. M. Pelz, P. Ercius, J. Miao, M. Scott, L. Waller Microscopy and Microanalysis 25, 394-395" + "text": "Engineering Chiral Structures Through Strain Release: Electron Tomography Study of Twisted Nanowires X. Song, A. Bruefach, P. M. Pelz, H. Devyldere, M. Scott Microscopy and Microanalysis 25, 1804-1805" }, { - "objectID": "publications/articles/08_3d_imaging_using_haadf_stem_and_hrtem_atomic_elect.html#abstract", - "href": "publications/articles/08_3d_imaging_using_haadf_stem_and_hrtem_atomic_elect.html#abstract", - "title": "3D Imaging Using HAADF-STEM and HRTEM Atomic Electron Tomography", + "objectID": "publications/articles/07_engineering_chiral_structures_through_strain_relea.html#abstract", + "href": "publications/articles/07_engineering_chiral_structures_through_strain_relea.html#abstract", + "title": "Engineering Chiral Structures Through Strain Release: Electron Tomography Study of Twisted Nanowires", "section": "Abstract", - "text": "Abstract\n\nNCEM, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, USA. 2. Dept. of Electrical Engineering and Computer Sciences, Univ. of California Berkeley, Berkeley, USA. 3. Dept. of Physics and Astronomy, Univ. of California Los Angeles, Los Angeles, USA. 4. Dept. of Materials Science and Engineering, Univ. of California Berkeley, Berkeley, USA. * Corresponding author: cophus@gmail.com" + "text": "Abstract\nDefects and strain play a strong role in material functionality on the nanoscale, but they are also important in directing the growth of many nanomaterials. For example, an axial screw dislocation is behind the asymmetric growth that creates many types of nanowires [1, 2]. In general, asymmetric nanomaterials are of technological interest due to their novel optoelectronic properties. Beyond individual properties, chiral and helical structures allow one to tune parameters such as diameter, helix pitch and spacing between individual helices. These hierarchical length scales create the capability to encode complementary properties in a single nanomaterial, such as tuning catalytic and optical properties for idealized photocatalysis. Coupled optical and plasmonic properties depend on material spacing, so the ability to create interlocking and tunable morphologies of helical structures holds great promise. However, before these materials can be widely implemented in technological applications, a better understanding of the factors that govern their synthetic routes must be developed." }, { - "objectID": "publications/articles/14_a_single_projection_three_dimensional_reconstructi.html", - "href": "publications/articles/14_a_single_projection_three_dimensional_reconstructi.html", - "title": "A single-projection three-dimensional reconstruction algorithm for scanning transmission electron microscopy data", + "objectID": "publications/articles/52_electron_ptychography_in_the_fresnel_diffraction_r.html", + "href": "publications/articles/52_electron_ptychography_in_the_fresnel_diffraction_r.html", + "title": "Electron Ptychography in the Fresnel Diffraction Regime", "section": "", - "text": "A single-projection three-dimensional reconstruction algorithm for scanning transmission electron microscopy data H. G. Brown, P. Pelz, S. Hsu, Z. Zhang, R. Ramesh, K. Inzani, E. Sheridan, S. M. Griffin, M. Schloz, T. C. Pekin, C. T. Koch, S. D. Findlay, L. J. Allen, M. Scott, C. Ophus, J. Ciston arXiv (Cornell University)" + "text": "Electron Ptychography in the Fresnel Diffraction Regime A. Maiden, P. Lu, S. You, F. Allars Microscopy and Microanalysis 31" }, { - "objectID": "publications/articles/14_a_single_projection_three_dimensional_reconstructi.html#citation-apa-7", - "href": "publications/articles/14_a_single_projection_three_dimensional_reconstructi.html#citation-apa-7", - "title": "A single-projection three-dimensional reconstruction algorithm for scanning transmission electron microscopy data", + "objectID": "publications/articles/52_electron_ptychography_in_the_fresnel_diffraction_r.html#citation-apa-7", + "href": "publications/articles/52_electron_ptychography_in_the_fresnel_diffraction_r.html#citation-apa-7", + "title": "Electron Ptychography in the Fresnel Diffraction Regime", "section": "", - "text": "A single-projection three-dimensional reconstruction algorithm for scanning transmission electron microscopy data H. G. Brown, P. Pelz, S. Hsu, Z. Zhang, R. Ramesh, K. Inzani, E. Sheridan, S. M. Griffin, M. Schloz, T. C. Pekin, C. T. Koch, S. D. Findlay, L. J. Allen, M. Scott, C. Ophus, J. Ciston arXiv (Cornell University)" + "text": "Electron Ptychography in the Fresnel Diffraction Regime A. Maiden, P. Lu, S. You, F. Allars Microscopy and Microanalysis 31" }, { - "objectID": "publications/articles/14_a_single_projection_three_dimensional_reconstructi.html#abstract", - "href": "publications/articles/14_a_single_projection_three_dimensional_reconstructi.html#abstract", - "title": "A single-projection three-dimensional reconstruction algorithm for scanning transmission electron microscopy data", + "objectID": "publications/articles/52_electron_ptychography_in_the_fresnel_diffraction_r.html#abstract", + "href": "publications/articles/52_electron_ptychography_in_the_fresnel_diffraction_r.html#abstract", + "title": "Electron Ptychography in the Fresnel Diffraction Regime", "section": "Abstract", "text": "Abstract\n[Abstract will be added manually]" }, { - "objectID": "publications/articles/32_imaging_the_electron_charge_density_in_monolayer_m.html", - "href": "publications/articles/32_imaging_the_electron_charge_density_in_monolayer_m.html", - "title": "Imaging the electron charge density in monolayer MoS2 at the Ångstrom scale", + "objectID": "publications/articles/03_low_dose_cryo_electron_ptychography_via_non_convex.html", + "href": "publications/articles/03_low_dose_cryo_electron_ptychography_via_non_convex.html", + "title": "Low-dose cryo electron ptychography via non-convex Bayesian optimization", "section": "", - "text": "Imaging the electron charge density in monolayer MoS2 at the Ångstrom scale J. Martis, S. Susarla, A. Rayabharam, C. Su, T. Paule, P. Pelz, C. Huff, X. Xu, H. Li, M. Jaikissoon, V. Chen, E. Pop, K. Saraswat, A. Zettl, N. R. Aluru, R. Ramesh, P. Ercius, A. Majumdar Nature Communications 14" + "text": "Low-dose cryo electron ptychography via non-convex Bayesian optimization P. M. Pelz, W. X. Qiu, R. Bücker, G. Kassier, R. J. D. Miller Scientific Reports 7" }, { - "objectID": "publications/articles/32_imaging_the_electron_charge_density_in_monolayer_m.html#citation-apa-7", - "href": "publications/articles/32_imaging_the_electron_charge_density_in_monolayer_m.html#citation-apa-7", - "title": "Imaging the electron charge density in monolayer MoS2 at the Ångstrom scale", + "objectID": "publications/articles/03_low_dose_cryo_electron_ptychography_via_non_convex.html#citation-apa-7", + "href": "publications/articles/03_low_dose_cryo_electron_ptychography_via_non_convex.html#citation-apa-7", + "title": "Low-dose cryo electron ptychography via non-convex Bayesian optimization", "section": "", - "text": "Imaging the electron charge density in monolayer MoS2 at the Ångstrom scale J. Martis, S. Susarla, A. Rayabharam, C. Su, T. Paule, P. Pelz, C. Huff, X. Xu, H. Li, M. Jaikissoon, V. Chen, E. Pop, K. Saraswat, A. Zettl, N. R. Aluru, R. Ramesh, P. Ercius, A. Majumdar Nature Communications 14" + "text": "Low-dose cryo electron ptychography via non-convex Bayesian optimization P. M. Pelz, W. X. Qiu, R. Bücker, G. Kassier, R. J. D. Miller Scientific Reports 7" }, { - "objectID": "publications/articles/32_imaging_the_electron_charge_density_in_monolayer_m.html#abstract", - "href": "publications/articles/32_imaging_the_electron_charge_density_in_monolayer_m.html#abstract", - "title": "Imaging the electron charge density in monolayer MoS2 at the Ångstrom scale", + "objectID": "publications/articles/03_low_dose_cryo_electron_ptychography_via_non_convex.html#abstract", + "href": "publications/articles/03_low_dose_cryo_electron_ptychography_via_non_convex.html#abstract", + "title": "Low-dose cryo electron ptychography via non-convex Bayesian optimization", "section": "Abstract", - "text": "Abstract\nFour-dimensional scanning transmission electron microscopy (4D-STEM) has recently gained widespread attention for its ability to image atomic electric fields with sub-Ångstrom spatial resolution. These electric field maps represent the integrated effect of the nucleus, core electrons and valence electrons, and separating their contributions is non-trivial. In this paper, we utilized simultaneously acquired 4D-STEM center of mass (CoM) images and annular dark field (ADF) images to determine the projected electron charge density in monolayer MoS2. We evaluate the contributions of both the core electrons and the valence electrons to the derived electron charge density; however, due to blurring by the probe shape, the valence electron contribution forms a nearly featureless background while most of the spatial modulation comes from the core electrons. Our findings highlight the importance of probe shape in interpreting charge densities derived from 4D-STEM and the need for smaller electron probes." + "text": "Abstract\nElectron ptychography has seen a recent surge of interest for phase sensitive imaging at atomic or near-atomic resolution. However, applications are so far mainly limited to radiation-hard samples, because the required doses are too high for imaging biological samples at high resolution. We propose the use of non-convex Bayesian optimization to overcome this problem, and show via numerical simulations that the dose required for successful reconstruction can be reduced by two orders of magnitude compared to previous experiments. As an important application we suggest to use this method for imaging single biological macromolecules at cryogenic temperatures and demonstrate 2D single-particle reconstructions from simulated data with a resolution up to 5.4 Å at a dose of 20e − /Å2. When averaging over only 30 low-dose datasets, a 2D resolution around 3.5 Å is possible for macromolecular complexes even below 100 kDa. With its independence from the microscope transfer function, direct recovery of phase contrast, and better scaling of signal-to-noise ratio, low-dose cryo electron ptychography may become a promising alternative to Zernike phase-contrast microscopy." }, { - "objectID": "publications/articles/19_phase_contrast_imaging_of_multiply_scattering_exte.html", - "href": "publications/articles/19_phase_contrast_imaging_of_multiply_scattering_exte.html", - "title": "Phase-contrast imaging of multiply-scattering extended objects at atomic resolution by reconstruction of the scattering matrix", + "objectID": "publications/articles/23_a_faster_image_simulation_algorithm_for_scanning_t.html", + "href": "publications/articles/23_a_faster_image_simulation_algorithm_for_scanning_t.html", + "title": "A faster image simulation algorithm for scanning transmission electron microscopy", "section": "", - "text": "Phase-contrast imaging of multiply-scattering extended objects at atomic resolution by reconstruction of the scattering matrix P. M. Pelz, H. G. Brown, S. Stonemeyer, S. D. Findlay, A. Zettl, P. Ercius, Y. Zhang, J. Ciston, M. C. Scott, C. Ophus Physical Review Research 3" + "text": "A faster image simulation algorithm for scanning transmission electron microscopy P. Pelz, L. DaCosta, A. M. Rakowski, M. Scott, C. Ophus Microscopy and Microanalysis 27, 1272-1275" }, { - "objectID": "publications/articles/19_phase_contrast_imaging_of_multiply_scattering_exte.html#citation-apa-7", - "href": "publications/articles/19_phase_contrast_imaging_of_multiply_scattering_exte.html#citation-apa-7", - "title": "Phase-contrast imaging of multiply-scattering extended objects at atomic resolution by reconstruction of the scattering matrix", + "objectID": "publications/articles/23_a_faster_image_simulation_algorithm_for_scanning_t.html#citation-apa-7", + "href": "publications/articles/23_a_faster_image_simulation_algorithm_for_scanning_t.html#citation-apa-7", + "title": "A faster image simulation algorithm for scanning transmission electron microscopy", "section": "", - "text": "Phase-contrast imaging of multiply-scattering extended objects at atomic resolution by reconstruction of the scattering matrix P. M. Pelz, H. G. Brown, S. Stonemeyer, S. D. Findlay, A. Zettl, P. Ercius, Y. Zhang, J. Ciston, M. C. Scott, C. Ophus Physical Review Research 3" + "text": "A faster image simulation algorithm for scanning transmission electron microscopy P. Pelz, L. DaCosta, A. M. Rakowski, M. Scott, C. Ophus Microscopy and Microanalysis 27, 1272-1275" }, { - "objectID": "publications/articles/19_phase_contrast_imaging_of_multiply_scattering_exte.html#abstract", - "href": "publications/articles/19_phase_contrast_imaging_of_multiply_scattering_exte.html#abstract", - "title": "Phase-contrast imaging of multiply-scattering extended objects at atomic resolution by reconstruction of the scattering matrix", + "objectID": "publications/articles/23_a_faster_image_simulation_algorithm_for_scanning_t.html#abstract", + "href": "publications/articles/23_a_faster_image_simulation_algorithm_for_scanning_t.html#abstract", + "title": "A faster image simulation algorithm for scanning transmission electron microscopy", "section": "Abstract", - "text": "Abstract\n[Abstract will be added manually]" + "text": "Abstract\nImage simulations are an integral part of research in scanning transmission electron microscopy (STEM), yet large-scale simulations can still require extended simulation times, and can quickly become infeasible." }, { - "objectID": "publications/articles/44_information_transfer_improvement_by_parallax_corre.html", - "href": "publications/articles/44_information_transfer_improvement_by_parallax_corre.html", - "title": "Information Transfer Improvement by Parallax Correction and Ptychography Reconstruction Applied to Fast Large-Area 4D STEM Experiments", + "objectID": "publications/articles/30_qualitative_phase_contrast_imaging_using_interfero.html", + "href": "publications/articles/30_qualitative_phase_contrast_imaging_using_interfero.html", + "title": "Qualitative Phase Contrast Imaging using Interferometric 4DSTEM", "section": "", - "text": "Information Transfer Improvement by Parallax Correction and Ptychography Reconstruction Applied to Fast Large-Area 4D STEM Experiments D. G. Stroppa, S. Ribet, G. Varnavides, C. Ophus, P. Pelz Microscopy and Microanalysis 30" + "text": "Qualitative Phase Contrast Imaging using Interferometric 4DSTEM A. Ducharme, P. Pelz, L. Brown, P. Ercius, B. McMorran Microscopy and Microanalysis 28, 2504-2505" }, { - "objectID": "publications/articles/44_information_transfer_improvement_by_parallax_corre.html#citation-apa-7", - "href": "publications/articles/44_information_transfer_improvement_by_parallax_corre.html#citation-apa-7", - "title": "Information Transfer Improvement by Parallax Correction and Ptychography Reconstruction Applied to Fast Large-Area 4D STEM Experiments", + "objectID": "publications/articles/30_qualitative_phase_contrast_imaging_using_interfero.html#citation-apa-7", + "href": "publications/articles/30_qualitative_phase_contrast_imaging_using_interfero.html#citation-apa-7", + "title": "Qualitative Phase Contrast Imaging using Interferometric 4DSTEM", "section": "", - "text": "Information Transfer Improvement by Parallax Correction and Ptychography Reconstruction Applied to Fast Large-Area 4D STEM Experiments D. G. Stroppa, S. Ribet, G. Varnavides, C. Ophus, P. Pelz Microscopy and Microanalysis 30" + "text": "Qualitative Phase Contrast Imaging using Interferometric 4DSTEM A. Ducharme, P. Pelz, L. Brown, P. Ercius, B. McMorran Microscopy and Microanalysis 28, 2504-2505" }, { - "objectID": "publications/articles/44_information_transfer_improvement_by_parallax_corre.html#abstract", - "href": "publications/articles/44_information_transfer_improvement_by_parallax_corre.html#abstract", - "title": "Information Transfer Improvement by Parallax Correction and Ptychography Reconstruction Applied to Fast Large-Area 4D STEM Experiments", + "objectID": "publications/articles/30_qualitative_phase_contrast_imaging_using_interfero.html#abstract", + "href": "publications/articles/30_qualitative_phase_contrast_imaging_using_interfero.html#abstract", + "title": "Qualitative Phase Contrast Imaging using Interferometric 4DSTEM", "section": "Abstract", - "text": "Abstract\nScanning Transmission Electron Microscopy (STEM) is currently a reference technique for high spatial resolution imaging, with wide adoption in the characterization of material science samples and with growing use in life science studies. 4D-STEM [1] approach presents a more detailed recording of the electron scattering pattern using pixelated electron detectors and extends the imaging possibilities by combining the real-space scanning and reciprocal-space scattering components. Recent improvements in the direct electron detector technology allow 4D-STEM experiments at similar speeds to STEM imaging [2], and motivates its exploration as a possible substitute to conventional imaging. This study addresses the information retrieval from 4D STEM datasets using virtual bright field imaging, parallax-corrected phase imaging, and ptychography reconstruction. Large fields-of-view (> 500 nm) of reference samples were measured with fast 4D-STEM (10 µs dwell time), moderate defocus (~100 nm), and scanning sampling between 0.3 and 2.4 nm/pixel. The 4D STEM datasets were processed with the open-source python-based py4DSTEM package [3, 4], including the preliminary assessment and subset selection by virtual STEM images. Defocused probe parallax imaging and a ptychographic gradient descent method were used to correct probe aberrations, particularly defocus. These methods resulted in reconstructed images with effective upsampling, due to the information retrieval from both real and reciprocal spaces. While the 4D STEM reconstruction with a virtual BF approach resulted in an image with spatial resolution limited by either probe aberration or sampling, equivalent to conventional BF STEM imaging, both parallax-corrected phase imaging and ptychography reconstruction allowed for information retrieval down to lattice level (< 0.2 nm). The findings indicate that 4D STEM reconstruction methods can yield resolution beyond real-space sampling, possibly limited by the effective electron dose used in fast 4D STEM experiments. A current challenge is to extend and optimize these image reconstruction methods to recover resolution from the full field of view of such large-area scans. However, with the increasing efficiency and" + "text": "Abstract\nPhase contrast imaging has been implemented inside the TEM column in the last decade at atomic resolution through differential phase contrast (DPC) and ptychography [1-2]. This imaging mode has higher contrast than more direct TEM imaging techniques, unlocking measurements of low Z and 2D materials and nanoscale electric fields [3-4]. Another route to phase contrast imaging is through structuring the electron beam prior to sample interaction, such as in MIDI-STEM [5]" }, { - "objectID": "publications/articles/25_a_three_dimensional_reconstruction_algorithm_for_s.html", - "href": "publications/articles/25_a_three_dimensional_reconstruction_algorithm_for_s.html", - "title": "A Three-Dimensional Reconstruction Algorithm for Scanning Transmission Electron Microscopy Data from a Single Sample Orientation", + "objectID": "publications/articles/24_smpr3d_an_open_source_toolkit_for_3d_phase_contras.html", + "href": "publications/articles/24_smpr3d_an_open_source_toolkit_for_3d_phase_contras.html", + "title": "smpr3d: an open-source toolkit for 3D phase-contrast imaging from 4D-STEM datasets", "section": "", - "text": "A Three-Dimensional Reconstruction Algorithm for Scanning Transmission Electron Microscopy Data from a Single Sample Orientation H. G. Brown, P. M. Pelz, S. Hsu, Z. Zhang, R. Ramesh, K. Inzani, E. Sheridan, S. M. Griffin, M. Schloz, T. C. Pekin, C. T. Koch, S. D. Findlay, L. J. Allen, M. C. Scott, C. Ophus, J. Ciston Microscopy and Microanalysis 28, 1632-1640" + "text": "smpr3d: an open-source toolkit for 3D phase-contrast imaging from 4D-STEM datasets P. Pelz, H. Brown, P. Ercius, I. Johnson, J. Ciston, M. Scott, C. Ophus Microscopy and Microanalysis 27, 1524-1526" }, { - "objectID": "publications/articles/25_a_three_dimensional_reconstruction_algorithm_for_s.html#citation-apa-7", - "href": "publications/articles/25_a_three_dimensional_reconstruction_algorithm_for_s.html#citation-apa-7", - "title": "A Three-Dimensional Reconstruction Algorithm for Scanning Transmission Electron Microscopy Data from a Single Sample Orientation", + "objectID": "publications/articles/24_smpr3d_an_open_source_toolkit_for_3d_phase_contras.html#citation-apa-7", + "href": "publications/articles/24_smpr3d_an_open_source_toolkit_for_3d_phase_contras.html#citation-apa-7", + "title": "smpr3d: an open-source toolkit for 3D phase-contrast imaging from 4D-STEM datasets", "section": "", - "text": "A Three-Dimensional Reconstruction Algorithm for Scanning Transmission Electron Microscopy Data from a Single Sample Orientation H. G. Brown, P. M. Pelz, S. Hsu, Z. Zhang, R. Ramesh, K. Inzani, E. Sheridan, S. M. Griffin, M. Schloz, T. C. Pekin, C. T. Koch, S. D. Findlay, L. J. Allen, M. C. Scott, C. Ophus, J. Ciston Microscopy and Microanalysis 28, 1632-1640" + "text": "smpr3d: an open-source toolkit for 3D phase-contrast imaging from 4D-STEM datasets P. Pelz, H. Brown, P. Ercius, I. Johnson, J. Ciston, M. Scott, C. Ophus Microscopy and Microanalysis 27, 1524-1526" }, { - "objectID": "publications/articles/25_a_three_dimensional_reconstruction_algorithm_for_s.html#abstract", - "href": "publications/articles/25_a_three_dimensional_reconstruction_algorithm_for_s.html#abstract", - "title": "A Three-Dimensional Reconstruction Algorithm for Scanning Transmission Electron Microscopy Data from a Single Sample Orientation", + "objectID": "publications/articles/24_smpr3d_an_open_source_toolkit_for_3d_phase_contras.html#abstract", + "href": "publications/articles/24_smpr3d_an_open_source_toolkit_for_3d_phase_contras.html#abstract", + "title": "smpr3d: an open-source toolkit for 3D phase-contrast imaging from 4D-STEM datasets", "section": "Abstract", - "text": "Abstract\nIncreasing interest in three-dimensional nanostructures adds impetus to electron microscopy techniques capable of imaging at or below the nanoscale in three dimensions. We present a reconstruction algorithm that takes as input a focal series of four-dimensional scanning transmission electron microscopy (4D-STEM) data. We apply the approach to a lead iridate, PbIrO, and yttrium-stabilized zirconia, YZrO, heterostructure from data acquired with the specimen in a single plan-view orientation, with the epitaxial layers stacked along the beam direction. We demonstrate that Pb–Ir atomic columns are visible in the uppermost layers of the reconstructed volume. We compare this approach to the alternative techniques of depth sectioning using differential phase contrast scanning transmission electron microscopy (DPC-STEM) and multislice ptychographic reconstruction." + "text": "Abstract\nMost current phase-contrast reconstruction algorithms for 4D-STEM datasets, like differential phase contrast [1] and ptychography [2], assume and reconstruct a 2-dimensional image. Yet modern electron microscopes allow aberration-corrected imaging with numerical apertures that enable axial resolution on the sub-10nm scale, such that three-dimensional information is available from a single view for most samples of interest. Reconstruction algorithms that allow to access this 3D phase-contrast information include multi-slice ptychography [6,7] and S-matrix phase-retrieval [3] and depth-sectioning [4,5]. Both algorithms have only recently been demonstrated for samples thicker than 2 depths of focus [4, 6], and are currently not widely available to the community. In this talk we introduce smpr3d (pronounced “semper 3d”, which stands for S - M atrix P hase R etrieval and 3D imaging; semper is latin for “always”, meaning there is (almost) always 3D information in your data), an open-source toolkit implemented using python and pytorch, that allows reconstruction of 3D phase-contrast images from single 4D-STEM scans and 4D-STEM focal-series measurements, both on single commodity hardware accelerators and High-Performance Computing architectures. We discuss common experimental parameters and preprocessing steps to produce 3D phase-contrast volumes from 4D-STEM measurements at the atomic scale." }, { - "objectID": "publications/articles/51_gap_free_information_transfer_in_4d_stem_via_fusio.html", - "href": "publications/articles/51_gap_free_information_transfer_in_4d_stem_via_fusio.html", - "title": "Gap‐Free Information Transfer in 4D‐STEM via Fusion of Complementary Scattering Channels", + "objectID": "publications/articles/28_simultaneous_successive_twinning_captured_by_atomi.html", + "href": "publications/articles/28_simultaneous_successive_twinning_captured_by_atomi.html", + "title": "Simultaneous Successive Twinning Captured by Atomic Electron Tomography", "section": "", - "text": "Gap‐Free Information Transfer in 4D‐STEM via Fusion of Complementary Scattering Channels S. You, G. Varnavides, S. Khavnekar, N. Palatkin, S. Shao, M. Wu, D. Stroppa, D. Chernikova, B. Zhu, R. Egoavil, S. Vespucci, D. Krishnan, X. Ye, F. K. M. Schur, E. Spiecker, P. Pelz Advanced Science" + "text": "Simultaneous Successive Twinning Captured by Atomic Electron Tomography P. M. Pelz, C. Groschner, A. Bruefach, A. Satariano, C. Ophus, M. C. Scott ACS Nano 16, 588-596" }, { - "objectID": "publications/articles/51_gap_free_information_transfer_in_4d_stem_via_fusio.html#citation-apa-7", - "href": "publications/articles/51_gap_free_information_transfer_in_4d_stem_via_fusio.html#citation-apa-7", - "title": "Gap‐Free Information Transfer in 4D‐STEM via Fusion of Complementary Scattering Channels", + "objectID": "publications/articles/28_simultaneous_successive_twinning_captured_by_atomi.html#citation-apa-7", + "href": "publications/articles/28_simultaneous_successive_twinning_captured_by_atomi.html#citation-apa-7", + "title": "Simultaneous Successive Twinning Captured by Atomic Electron Tomography", "section": "", - "text": "Gap‐Free Information Transfer in 4D‐STEM via Fusion of Complementary Scattering Channels S. You, G. Varnavides, S. Khavnekar, N. Palatkin, S. Shao, M. Wu, D. Stroppa, D. Chernikova, B. Zhu, R. Egoavil, S. Vespucci, D. Krishnan, X. Ye, F. K. M. Schur, E. Spiecker, P. Pelz Advanced Science" + "text": "Simultaneous Successive Twinning Captured by Atomic Electron Tomography P. M. Pelz, C. Groschner, A. Bruefach, A. Satariano, C. Ophus, M. C. Scott ACS Nano 16, 588-596" }, { - "objectID": "publications/articles/51_gap_free_information_transfer_in_4d_stem_via_fusio.html#abstract", - "href": "publications/articles/51_gap_free_information_transfer_in_4d_stem_via_fusio.html#abstract", - "title": "Gap‐Free Information Transfer in 4D‐STEM via Fusion of Complementary Scattering Channels", + "objectID": "publications/articles/28_simultaneous_successive_twinning_captured_by_atomi.html#abstract", + "href": "publications/articles/28_simultaneous_successive_twinning_captured_by_atomi.html#abstract", + "title": "Simultaneous Successive Twinning Captured by Atomic Electron Tomography", "section": "Abstract", - "text": "Abstract\nLinear phase‐contrast scanning transmission electron microscopy (STEM) techniques compatible with high‐throughput 4D‐STEM acquisition are widely used to enhance phase contrast in weakly scattering and beam‐sensitive materials. In these modalities, contrast transfer is often suppressed at low spatial frequencies, resulting in a characteristic contrast gap that limits contrast. Approaches that retain low‐frequency phase contrast exist but typically require substantially increased experimental complexity, restricting routine use. Dark‐field STEM imaging captures this missing low‐frequency information through electrons scattered outside the bright‐field disk, but discards a large fraction of the scattered signal and is therefore dose‐inefficient. Fused Full‐field STEM (FF‐STEM) is introduced as a 4D‐STEM imaging modality that overcomes these limitations by combining ptychographic phase reconstruction with tilt‐corrected dark‐field imaging within a single acquisition. Bright‐field data are used to estimate probe aberrations and reconstruct a high‐resolution phase image, while dark‐field data provide complementary low‐frequency contrast. The two channels are fused in Fourier space using Wiener‐band weighting based on the spectral signal‐to‐noise ratio, yielding transfer‐gap‐free images with high contrast. FF‐STEM preserves the upsampling and depth‐sectioning capabilities of ptychography, adds robust low‐frequency contrast characteristic of dark‐field imaging, and enables dose‐efficient, near–real‐time reconstruction." + "text": "Abstract\nShape-controlled synthesis of multiply twinned nanostructures is heavily emphasized in nanoscience, in large part due to the desire to control the size, shape, and terminating facets of metal nanoparticles for applications in catalysis. Direct control of the size and shape of solution-grown nanoparticles relies on an understanding of how synthetic parameters alter nanoparticle structures during synthesis. However, while outcome populations can be effectively studied with standard electron microscopy methods, transient structures that appear during some synthetic routes are difficult to study using conventional high resolution imaging methods due to the high complexity of the 3D nanostructures. Here, we have studied the prevalence of transient structures during growth of multiply twinned particles and employed atomic electron tomography to reveal the atomic-scale three-dimensional structure of a Pd nanoparticle undergoing a shape transition. By identifying over 20 000 atoms within the structure and classifying them according to their local crystallographic environment, we observe a multiply twinned structure consistent with a simultaneous successive twinning from a decahedral to icosahedral structure." + }, + { + "objectID": "publications/articles/51_sub_ångstrom_3d_resolution_volume_imaging_beyond_t.html", + "href": "publications/articles/51_sub_ångstrom_3d_resolution_volume_imaging_beyond_t.html", + "title": "Sub-Ångstrom 3D Resolution, Volume Imaging Beyond the Depth of Focus Limit, and Automated Tomography Using Electron Ptychography", + "section": "", + "text": "Sub-Ångstrom 3D Resolution, Volume Imaging Beyond the Depth of Focus Limit, and Automated Tomography Using Electron Ptychography P. Pelz, S. You, M. Wu, N. Palatkin Microscopy and Microanalysis 31" + }, + { + "objectID": "publications/articles/51_sub_ångstrom_3d_resolution_volume_imaging_beyond_t.html#citation-apa-7", + "href": "publications/articles/51_sub_ångstrom_3d_resolution_volume_imaging_beyond_t.html#citation-apa-7", + "title": "Sub-Ångstrom 3D Resolution, Volume Imaging Beyond the Depth of Focus Limit, and Automated Tomography Using Electron Ptychography", + "section": "", + "text": "Sub-Ångstrom 3D Resolution, Volume Imaging Beyond the Depth of Focus Limit, and Automated Tomography Using Electron Ptychography P. Pelz, S. You, M. Wu, N. Palatkin Microscopy and Microanalysis 31" + }, + { + "objectID": "publications/articles/51_sub_ångstrom_3d_resolution_volume_imaging_beyond_t.html#abstract", + "href": "publications/articles/51_sub_ångstrom_3d_resolution_volume_imaging_beyond_t.html#abstract", + "title": "Sub-Ångstrom 3D Resolution, Volume Imaging Beyond the Depth of Focus Limit, and Automated Tomography Using Electron Ptychography", + "section": "Abstract", + "text": "Abstract\n[Abstract will be added manually]" + }, + { + "objectID": "publications/articles/43_solving_complex_nanostructures_with_ptychographic_.html", + "href": "publications/articles/43_solving_complex_nanostructures_with_ptychographic_.html", + "title": "Solving complex nanostructures with ptychographic atomic electron tomography", + "section": "", + "text": "Solving complex nanostructures with ptychographic atomic electron tomography P. M. Pelz, S. M. Griffin, S. Stonemeyer, D. Popple, H. DeVyldere, P. Ercius, A. Zettl, M. C. Scott, C. Ophus Nature Communications 14" + }, + { + "objectID": "publications/articles/43_solving_complex_nanostructures_with_ptychographic_.html#citation-apa-7", + "href": "publications/articles/43_solving_complex_nanostructures_with_ptychographic_.html#citation-apa-7", + "title": "Solving complex nanostructures with ptychographic atomic electron tomography", + "section": "", + "text": "Solving complex nanostructures with ptychographic atomic electron tomography P. M. Pelz, S. M. Griffin, S. Stonemeyer, D. Popple, H. DeVyldere, P. Ercius, A. Zettl, M. C. Scott, C. Ophus Nature Communications 14" + }, + { + "objectID": "publications/articles/43_solving_complex_nanostructures_with_ptychographic_.html#abstract", + "href": "publications/articles/43_solving_complex_nanostructures_with_ptychographic_.html#abstract", + "title": "Solving complex nanostructures with ptychographic atomic electron tomography", + "section": "Abstract", + "text": "Abstract\nTransmission electron microscopy (TEM) is essential for determining atomic scale structures in structural biology and materials science. In structural biology, three-dimensional structures of proteins are routinely determined from thousands of identical particles using phase-contrast TEM. In materials science, three-dimensional atomic structures of complex nanomaterials have been determined using atomic electron tomography (AET). However, neither of these methods can determine the three-dimensional atomic structure of heterogeneous nanomaterials containing light elements. Here, we perform ptychographic electron tomography from 34.5 million diffraction patterns to reconstruct an atomic resolution tilt series of a double wall-carbon nanotube (DW-CNT) encapsulating a complex ZrTe sandwich structure. Class averaging the resulting tilt series images and subpixel localization of the atomic peaks reveals a Zr 11 Te 50 structure containing a previously unobserved ZrTe 2 phase in the core. The experimental realization of atomic resolution ptychographic electron tomography will allow for the structural determination of a wide range of beam-sensitive nanomaterials containing light elements." }, { "objectID": "publications/articles/05_electron_ptychography_of_single_biological_macromo.html", @@ -630,88 +735,109 @@ "text": "Abstract\n\nMax Planck Institute for the Structure and Dynamics of Matter, Hamburg, Germany 2. Department of Chemistry and Physics, University of Toronto, Toronto, Canada 3. Monash Ramaciotti Centre for Cryo-Electron Microscopy, Monash University, Melbourne, VIC, 3800, Australia 4. Department of Biochemistry and Molecular Biology, Monash University, Melbourne, Australia 5. Biomedicine Discovery Institute, Monash University, Melbourne, Australia 6. Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons and Peter Grünberg Institute, Forschungszentrum Jülich, Jülich, Germany 7. Materials Science and Engineering, UC Berkeley, Berkeley, CA 8. Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, USA" }, { - "objectID": "publications/articles/28_structured_illumination_electron_ptychography_at_t.html", - "href": "publications/articles/28_structured_illumination_electron_ptychography_at_t.html", - "title": "Structured Illumination Electron Ptychography at the Atomic Scale", + "objectID": "publications/articles/21_real_time_interactive_ptychography_from_electron_e.html", + "href": "publications/articles/21_real_time_interactive_ptychography_from_electron_e.html", + "title": "Real-time interactive ptychography from electron event representation data", "section": "", - "text": "Structured Illumination Electron Ptychography at the Atomic Scale P. Pelz, H. DeVyldere, P. Ercius, M. Scott Microscopy and Microanalysis 28, 388-390" + "text": "Real-time interactive ptychography from electron event representation data P. Pelz, P. Ercius, C. Ophus, I. Johnson, M. Scott Microscopy and Microanalysis 27, 188-189" }, { - "objectID": "publications/articles/28_structured_illumination_electron_ptychography_at_t.html#citation-apa-7", - "href": "publications/articles/28_structured_illumination_electron_ptychography_at_t.html#citation-apa-7", - "title": "Structured Illumination Electron Ptychography at the Atomic Scale", + "objectID": "publications/articles/21_real_time_interactive_ptychography_from_electron_e.html#citation-apa-7", + "href": "publications/articles/21_real_time_interactive_ptychography_from_electron_e.html#citation-apa-7", + "title": "Real-time interactive ptychography from electron event representation data", "section": "", - "text": "Structured Illumination Electron Ptychography at the Atomic Scale P. Pelz, H. DeVyldere, P. Ercius, M. Scott Microscopy and Microanalysis 28, 388-390" + "text": "Real-time interactive ptychography from electron event representation data P. Pelz, P. Ercius, C. Ophus, I. Johnson, M. Scott Microscopy and Microanalysis 27, 188-189" }, { - "objectID": "publications/articles/28_structured_illumination_electron_ptychography_at_t.html#abstract", - "href": "publications/articles/28_structured_illumination_electron_ptychography_at_t.html#abstract", - "title": "Structured Illumination Electron Ptychography at the Atomic Scale", + "objectID": "publications/articles/21_real_time_interactive_ptychography_from_electron_e.html#abstract", + "href": "publications/articles/21_real_time_interactive_ptychography_from_electron_e.html#abstract", + "title": "Real-time interactive ptychography from electron event representation data", "section": "Abstract", - "text": "Abstract\nWith the advent of fast direct electron detectors, electron ptychography is becoming increasingly popular as a high-resolution, high-sensitivity phase-contrast method in electron microscopy. Electron ptychography is a computational phase-contrast imaging method that reconstructs phase-contrast images from scanning diffraction measurements, acquired by raster-scanning a spatially confined beam over the field of view." + "text": "Abstract\nThe arrival of direct electron detectors (DEDs) with high frame rates in the field of scanning transmission electron microscopy (TEM) has enabled many experimental techniques that require collection of a full diffraction pattern at each scan position, a field which is subsumed under the name four-dimensional scanning transmission electron microscopy (4D-STEM). DED frame rates approaching 100 kHz require data transmission rates and data storage capabilities that exceed those of the commonly available computing infrastructures. Current commercial DEDs allow the user to make compromises in pixel bit depth, detector binning, or windowing to reduce the per-frame file size and allow higher frame rates. This change in detector specifications requires decisions to be made before data acquisition that may reduce or lose information that could have been advantageous during data analysis." }, { - "objectID": "publications/articles/45_the_4d_camera_an_87_khz_direct_electron_detector_f.html", - "href": "publications/articles/45_the_4d_camera_an_87_khz_direct_electron_detector_f.html", - "title": "The 4D Camera: An 87 kHz Direct Electron Detector for Scanning/Transmission Electron Microscopy", + "objectID": "publications/articles/19_depth_resolution_in_ptychography.html", + "href": "publications/articles/19_depth_resolution_in_ptychography.html", + "title": "Depth Resolution in Ptychography", "section": "", - "text": "The 4D Camera: An 87 kHz Direct Electron Detector for Scanning/Transmission Electron Microscopy P. Ercius, I. J. Johnson, P. Pelz, B. H. Savitzky, L. Hughes, H. G. Brown, S. E. Zeltmann, S. Hsu, C. C. S. Pedroso, B. E. Cohen, R. Ramesh, D. Paul, J. M. Joseph, T. Stezelberger, C. Czarnik, M. Lent, E. Fong, J. Ciston, M. C. Scott, C. Ophus, A. M. Minor, P. Denes Microscopy and Microanalysis 30, 903-912" + "text": "Depth Resolution in Ptychography T. U. o. Sheffield, S. You Proceedings of the European Microscopy Congress 2020" }, { - "objectID": "publications/articles/45_the_4d_camera_an_87_khz_direct_electron_detector_f.html#citation-apa-7", - "href": "publications/articles/45_the_4d_camera_an_87_khz_direct_electron_detector_f.html#citation-apa-7", - "title": "The 4D Camera: An 87 kHz Direct Electron Detector for Scanning/Transmission Electron Microscopy", + "objectID": "publications/articles/19_depth_resolution_in_ptychography.html#citation-apa-7", + "href": "publications/articles/19_depth_resolution_in_ptychography.html#citation-apa-7", + "title": "Depth Resolution in Ptychography", "section": "", - "text": "The 4D Camera: An 87 kHz Direct Electron Detector for Scanning/Transmission Electron Microscopy P. Ercius, I. J. Johnson, P. Pelz, B. H. Savitzky, L. Hughes, H. G. Brown, S. E. Zeltmann, S. Hsu, C. C. S. Pedroso, B. E. Cohen, R. Ramesh, D. Paul, J. M. Joseph, T. Stezelberger, C. Czarnik, M. Lent, E. Fong, J. Ciston, M. C. Scott, C. Ophus, A. M. Minor, P. Denes Microscopy and Microanalysis 30, 903-912" + "text": "Depth Resolution in Ptychography T. U. o. Sheffield, S. You Proceedings of the European Microscopy Congress 2020" }, { - "objectID": "publications/articles/45_the_4d_camera_an_87_khz_direct_electron_detector_f.html#abstract", - "href": "publications/articles/45_the_4d_camera_an_87_khz_direct_electron_detector_f.html#abstract", - "title": "The 4D Camera: An 87 kHz Direct Electron Detector for Scanning/Transmission Electron Microscopy", + "objectID": "publications/articles/19_depth_resolution_in_ptychography.html#abstract", + "href": "publications/articles/19_depth_resolution_in_ptychography.html#abstract", + "title": "Depth Resolution in Ptychography", "section": "Abstract", - "text": "Abstract\nWe describe the development, operation, and application of the 4D Camera—a 576 by 576 pixel active pixel sensor for scanning/transmission electron microscopy which operates at 87,000 Hz. The detector generates data at ∼480 Gbit/s which is captured by dedicated receiver computers with a parallelized software infrastructure that has been implemented to process the resulting 10–700 Gigabyte-sized raw datasets. The back illuminated detector provides the ability to detect single electron events at accelerating voltages from 30 to 300 kV. Through electron counting, the resulting sparse data sets are reduced in size by 10–300× compared to the raw data, and open-source sparsity-based processing algorithms offer rapid data analysis. The high frame rate allows for large and complex scanning diffraction experiments to be accomplished with typical scanning transmission electron microscopy scanning parameters." + "text": "Abstract\n[Abstract will be added manually]" }, { - "objectID": "publications/articles/18_scalable_multicomponent_spectral_analysis_for_high.html", - "href": "publications/articles/18_scalable_multicomponent_spectral_analysis_for_high.html", - "title": "Scalable multicomponent spectral analysis for high-throughput data annotation", + "objectID": "publications/articles/34_observation_of_simultaneous_successive_twinning_us.html", + "href": "publications/articles/34_observation_of_simultaneous_successive_twinning_us.html", + "title": "Observation of Simultaneous Successive Twinning Using Atomic Electron Tomography", "section": "", - "text": "Scalable multicomponent spectral analysis for high-throughput dataannotation R. P. Xian, R. Ernstorfer, P. Pelz arXiv (Cornell University)" + "text": "Observation of Simultaneous Successive Twinning Using Atomic Electron Tomography P. M. Pelz, C. Groschner, A. Bruefach, C. Ophus, M. C. Scott Microscopy and Microanalysis 29, 707-708" }, { - "objectID": "publications/articles/18_scalable_multicomponent_spectral_analysis_for_high.html#citation-apa-7", - "href": "publications/articles/18_scalable_multicomponent_spectral_analysis_for_high.html#citation-apa-7", - "title": "Scalable multicomponent spectral analysis for high-throughput data annotation", + "objectID": "publications/articles/34_observation_of_simultaneous_successive_twinning_us.html#citation-apa-7", + "href": "publications/articles/34_observation_of_simultaneous_successive_twinning_us.html#citation-apa-7", + "title": "Observation of Simultaneous Successive Twinning Using Atomic Electron Tomography", "section": "", - "text": "Scalable multicomponent spectral analysis for high-throughput dataannotation R. P. Xian, R. Ernstorfer, P. Pelz arXiv (Cornell University)" + "text": "Observation of Simultaneous Successive Twinning Using Atomic Electron Tomography P. M. Pelz, C. Groschner, A. Bruefach, C. Ophus, M. C. Scott Microscopy and Microanalysis 29, 707-708" }, { - "objectID": "publications/articles/18_scalable_multicomponent_spectral_analysis_for_high.html#abstract", - "href": "publications/articles/18_scalable_multicomponent_spectral_analysis_for_high.html#abstract", - "title": "Scalable multicomponent spectral analysis for high-throughput data annotation", + "objectID": "publications/articles/34_observation_of_simultaneous_successive_twinning_us.html#abstract", + "href": "publications/articles/34_observation_of_simultaneous_successive_twinning_us.html#abstract", + "title": "Observation of Simultaneous Successive Twinning Using Atomic Electron Tomography", "section": "Abstract", "text": "Abstract\n[Abstract will be added manually]" }, { - "objectID": "publications/articles/22_a_faster_image_simulation_algorithm_for_scanning_t.html", - "href": "publications/articles/22_a_faster_image_simulation_algorithm_for_scanning_t.html", - "title": "A faster image simulation algorithm for scanning transmission electron microscopy", + "objectID": "publications/articles/40_high_resolution_3d_phase_contrast_imaging_beyond_t.html", + "href": "publications/articles/40_high_resolution_3d_phase_contrast_imaging_beyond_t.html", + "title": "High-resolution 3D phase-contrast imaging beyond the depth of field limit via ptychographic multi-slice electron tomography", "section": "", - "text": "A faster image simulation algorithm for scanning transmission electron microscopy P. Pelz, L. DaCosta, A. M. Rakowski, M. Scott, C. Ophus Microscopy and Microanalysis 27, 1272-1275" + "text": "High-resolution 3D phase-contrast imaging beyond the depth of field limit via ptychographic multi-slice electron tomography A. V. Romanov, M. G. Cho, M. Scott, C. Ophus, P. Pelz arXiv (Cornell University)" }, { - "objectID": "publications/articles/22_a_faster_image_simulation_algorithm_for_scanning_t.html#citation-apa-7", - "href": "publications/articles/22_a_faster_image_simulation_algorithm_for_scanning_t.html#citation-apa-7", - "title": "A faster image simulation algorithm for scanning transmission electron microscopy", + "objectID": "publications/articles/40_high_resolution_3d_phase_contrast_imaging_beyond_t.html#citation-apa-7", + "href": "publications/articles/40_high_resolution_3d_phase_contrast_imaging_beyond_t.html#citation-apa-7", + "title": "High-resolution 3D phase-contrast imaging beyond the depth of field limit via ptychographic multi-slice electron tomography", "section": "", - "text": "A faster image simulation algorithm for scanning transmission electron microscopy P. Pelz, L. DaCosta, A. M. Rakowski, M. Scott, C. Ophus Microscopy and Microanalysis 27, 1272-1275" + "text": "High-resolution 3D phase-contrast imaging beyond the depth of field limit via ptychographic multi-slice electron tomography A. V. Romanov, M. G. Cho, M. Scott, C. Ophus, P. Pelz arXiv (Cornell University)" }, { - "objectID": "publications/articles/22_a_faster_image_simulation_algorithm_for_scanning_t.html#abstract", - "href": "publications/articles/22_a_faster_image_simulation_algorithm_for_scanning_t.html#abstract", - "title": "A faster image simulation algorithm for scanning transmission electron microscopy", + "objectID": "publications/articles/40_high_resolution_3d_phase_contrast_imaging_beyond_t.html#abstract", + "href": "publications/articles/40_high_resolution_3d_phase_contrast_imaging_beyond_t.html#abstract", + "title": "High-resolution 3D phase-contrast imaging beyond the depth of field limit via ptychographic multi-slice electron tomography", "section": "Abstract", - "text": "Abstract\nImage simulations are an integral part of research in scanning transmission electron microscopy (STEM), yet large-scale simulations can still require extended simulation times, and can quickly become infeasible." + "text": "Abstract\n[Abstract will be added manually]" + }, + { + "objectID": "publications/articles/11_improving_the_speed_and_accuracy_of_large_scale_sc.html", + "href": "publications/articles/11_improving_the_speed_and_accuracy_of_large_scale_sc.html", + "title": "Improving the Speed and Accuracy of Large-scale Scanning Transmission Electron Microscopy (STEM) Electron Scattering Simulations", + "section": "", + "text": "Improving the Speed and Accuracy of Large-scale Scanning Transmission Electron Microscopy (STEM) Electron Scattering Simulations C. Ophus, H. Brown, L. R. Dacosta, P. Pelz, J. Schwartz, R. Yalisove, R. Hovden, J. Ciston, B. Savitzky Microscopy and Microanalysis 26, 456-458" + }, + { + "objectID": "publications/articles/11_improving_the_speed_and_accuracy_of_large_scale_sc.html#citation-apa-7", + "href": "publications/articles/11_improving_the_speed_and_accuracy_of_large_scale_sc.html#citation-apa-7", + "title": "Improving the Speed and Accuracy of Large-scale Scanning Transmission Electron Microscopy (STEM) Electron Scattering Simulations", + "section": "", + "text": "Improving the Speed and Accuracy of Large-scale Scanning Transmission Electron Microscopy (STEM) Electron Scattering Simulations C. Ophus, H. Brown, L. R. Dacosta, P. Pelz, J. Schwartz, R. Yalisove, R. Hovden, J. Ciston, B. Savitzky Microscopy and Microanalysis 26, 456-458" + }, + { + "objectID": "publications/articles/11_improving_the_speed_and_accuracy_of_large_scale_sc.html#abstract", + "href": "publications/articles/11_improving_the_speed_and_accuracy_of_large_scale_sc.html#abstract", + "title": "Improving the Speed and Accuracy of Large-scale Scanning Transmission Electron Microscopy (STEM) Electron Scattering Simulations", + "section": "Abstract", + "text": "Abstract\nIn a scanning transmission electron microscopy (STEM) experiment, a converged electron probe is typically scanned across a sample in a 2D grid of probe positions. At each STEM probe position, various signal channels can be recorded. These include imaging modes concerned primarily with electron scattering, such as annular bright field (ABF), annular dark field (ADF), or segmented-detector differential phase contrast (DPC), where we use a few monolithic detectors that measure the number of electrons which are scattered to various angular ranges to produce 2D image outputs. We can also perform spectroscopy, by either electron energy loss spectroscopy (EELS) on the forward scattered inelastic electrons, or by energy dispersive X-ray (EDX) spectroscopy where x-rays produced by the STEM probe interacting with the sample is used to perform chemical mapping, both of which produce 3D datasets. And finally, modern high-speed electron detectors also allow us to measure a full 2D image of the forwarddiffracted STEM probe at each probe position, producing a 4D dataset often referred to as a 4D-STEM experiment [1]. In many of these experiments, performing a quantitative analysis of the results requires us to perform electron scattering simulations for every position of the scanned electron probe." }, { "objectID": "publications/articles/10_phase_contrast_imaging_in_thick_heterogeneous_samp.html", @@ -735,128 +861,44 @@ "text": "Abstract\nThree-dimensional phase-contrast imaging of thick, multiply scattering samples in electron microscopy requires the inversion of the paraxial Schroedinger equation for fast electrons which describes the propagation of coherent high-energy electrons in an electrostatic potential. The most prominent method for calculating a coherent exit-wave from a multiple-scattering sample is the multi-slice algorithm [1]. Due to its popularity for forward calculations, the inverse multi-slice algorithm has mostly been used in algorithms for inverting the scattering process, to retrieve a sample structure from measured intensities in real [2,4] or Fourier space [3,4,5]." }, { - "objectID": "publications/articles/46_multi_slice_electron_ptychographic_tomography_for_.html", - "href": "publications/articles/46_multi_slice_electron_ptychographic_tomography_for_.html", - "title": "Multi-slice electron ptychographic tomography for three-dimensional phase-contrast microscopy beyond the depth of focus limits", - "section": "", - "text": "Multi-slice electron ptychographic tomography for three-dimensional phase-contrast microscopy beyond the depth of focus limits A. Romanov, M. G. Cho, M. C. Scott, P. Pelz Journal of Physics: Materials 8, 015005" - }, - { - "objectID": "publications/articles/46_multi_slice_electron_ptychographic_tomography_for_.html#citation-apa-7", - "href": "publications/articles/46_multi_slice_electron_ptychographic_tomography_for_.html#citation-apa-7", - "title": "Multi-slice electron ptychographic tomography for three-dimensional phase-contrast microscopy beyond the depth of focus limits", - "section": "", - "text": "Multi-slice electron ptychographic tomography for three-dimensional phase-contrast microscopy beyond the depth of focus limits A. Romanov, M. G. Cho, M. C. Scott, P. Pelz Journal of Physics: Materials 8, 015005" - }, - { - "objectID": "publications/articles/46_multi_slice_electron_ptychographic_tomography_for_.html#abstract", - "href": "publications/articles/46_multi_slice_electron_ptychographic_tomography_for_.html#abstract", - "title": "Multi-slice electron ptychographic tomography for three-dimensional phase-contrast microscopy beyond the depth of focus limits", - "section": "Abstract", - "text": "Abstract\nElectron ptychography is a powerful computational method for atomic-resolution imaging with high contrast for weakly and strongly scattering elements. Modern algorithms coupled with fast and efficient detectors allow imaging specimens with tens of nanometers thicknesses with sub-0.5 Ångstrom lateral resolution. However, the axial resolution in these approaches is currently limited to a few nanometers, limiting their ability to solve novel atomic structures ab initio. Here, we experimentally demonstrate multi-slice ptychographic electron tomography, which allows atomic resolution three-dimensional phase-contrast imaging in a volume surpassing the depth of field limits. We reconstruct tilt-series 4D-STEM measurements of a Co 3 O 4 nanocube, yielding 2 Å axial and 0.7 Å transverse resolution in a reconstructed volume of ( 18.2 nm ) 3 . Our results demonstrate a 13.5-fold improvement in axial resolution compared to multi-slice ptychography while retaining the atomic lateral resolution and the capability to image volumes beyond the depth of field limit. Multi-slice ptychographic electron tomography significantly expands the volume of materials accessible using high-resolution electron microscopy. We discuss further experimental and algorithmic improvements necessary to also resolve single weakly scattering atoms in 3D." - }, - { - "objectID": "publications/articles/43_using_phase_contrast_4d_stem_to_solve_3d_inorganic.html", - "href": "publications/articles/43_using_phase_contrast_4d_stem_to_solve_3d_inorganic.html", - "title": "Using Phase Contrast 4D-STEM to solve 3D Inorganic and Biological Nanostructures", - "section": "", - "text": "Using Phase Contrast 4D-STEM to solve 3D Inorganic and Biological Nanostructures C. Ophus, S. Ribet, G. Varnavides, P. M. Pelz Microscopy and Microanalysis 30" - }, - { - "objectID": "publications/articles/43_using_phase_contrast_4d_stem_to_solve_3d_inorganic.html#citation-apa-7", - "href": "publications/articles/43_using_phase_contrast_4d_stem_to_solve_3d_inorganic.html#citation-apa-7", - "title": "Using Phase Contrast 4D-STEM to solve 3D Inorganic and Biological Nanostructures", - "section": "", - "text": "Using Phase Contrast 4D-STEM to solve 3D Inorganic and Biological Nanostructures C. Ophus, S. Ribet, G. Varnavides, P. M. Pelz Microscopy and Microanalysis 30" - }, - { - "objectID": "publications/articles/43_using_phase_contrast_4d_stem_to_solve_3d_inorganic.html#abstract", - "href": "publications/articles/43_using_phase_contrast_4d_stem_to_solve_3d_inorganic.html#abstract", - "title": "Using Phase Contrast 4D-STEM to solve 3D Inorganic and Biological Nanostructures", - "section": "Abstract", - "text": "Abstract\n[Abstract will be added manually]" - }, - { - "objectID": "publications/articles/48_sub_ångstrom_3d_resolution_volume_imaging_beyond_t.html", - "href": "publications/articles/48_sub_ångstrom_3d_resolution_volume_imaging_beyond_t.html", - "title": "Sub-Ångstrom 3D Resolution, Volume Imaging Beyond the Depth of Focus Limit, and Automated Tomography Using Electron Ptychography", - "section": "", - "text": "Sub-Ångstrom 3D Resolution, Volume Imaging Beyond the Depth of Focus Limit, and Automated Tomography Using Electron Ptychography P. Pelz, S. You, M. Wu, N. Palatkin Microscopy and Microanalysis 31" - }, - { - "objectID": "publications/articles/48_sub_ångstrom_3d_resolution_volume_imaging_beyond_t.html#citation-apa-7", - "href": "publications/articles/48_sub_ångstrom_3d_resolution_volume_imaging_beyond_t.html#citation-apa-7", - "title": "Sub-Ångstrom 3D Resolution, Volume Imaging Beyond the Depth of Focus Limit, and Automated Tomography Using Electron Ptychography", - "section": "", - "text": "Sub-Ångstrom 3D Resolution, Volume Imaging Beyond the Depth of Focus Limit, and Automated Tomography Using Electron Ptychography P. Pelz, S. You, M. Wu, N. Palatkin Microscopy and Microanalysis 31" - }, - { - "objectID": "publications/articles/48_sub_ångstrom_3d_resolution_volume_imaging_beyond_t.html#abstract", - "href": "publications/articles/48_sub_ångstrom_3d_resolution_volume_imaging_beyond_t.html#abstract", - "title": "Sub-Ångstrom 3D Resolution, Volume Imaging Beyond the Depth of Focus Limit, and Automated Tomography Using Electron Ptychography", - "section": "Abstract", - "text": "Abstract\n[Abstract will be added manually]" - }, - { - "objectID": "publications/articles/06_towards_ptychography_with_structured_illumination_.html", - "href": "publications/articles/06_towards_ptychography_with_structured_illumination_.html", - "title": "Towards Ptychography with Structured Illumination, and a Derivative-Based Reconstruction Algorithm", - "section": "", - "text": "Towards Ptychography with Structured Illumination, and a Derivative-Based Reconstruction Algorithm W. V. d. Broek, M. Schloz, T. Pekin, P. Pelz, P. Lu, M. Kruth, V. Grillo, R. Dunin-Borkowski, R. Miller, C. Koch Microscopy and Microanalysis 25, 58-59" - }, - { - "objectID": "publications/articles/06_towards_ptychography_with_structured_illumination_.html#citation-apa-7", - "href": "publications/articles/06_towards_ptychography_with_structured_illumination_.html#citation-apa-7", - "title": "Towards Ptychography with Structured Illumination, and a Derivative-Based Reconstruction Algorithm", - "section": "", - "text": "Towards Ptychography with Structured Illumination, and a Derivative-Based Reconstruction Algorithm W. V. d. Broek, M. Schloz, T. Pekin, P. Pelz, P. Lu, M. Kruth, V. Grillo, R. Dunin-Borkowski, R. Miller, C. Koch Microscopy and Microanalysis 25, 58-59" - }, - { - "objectID": "publications/articles/06_towards_ptychography_with_structured_illumination_.html#abstract", - "href": "publications/articles/06_towards_ptychography_with_structured_illumination_.html#abstract", - "title": "Towards Ptychography with Structured Illumination, and a Derivative-Based Reconstruction Algorithm", - "section": "Abstract", - "text": "Abstract\n\nInstitut für Physik & IRIS Adlershof, Humboldt-Universität zu Berlin, Berlin, Germany 2. Max Planck Institute for the Structure and Dynamics of Matter, Center for Free Electron Laser Science, Hamburg, Germany 3. Ernst Ruska-Centre (ER-C) for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich, Jülich, Germany 4. CNR-Istituto Nanoscienze, Centro S3, Modena, Italy 5. Departments of Chemistry and Physics, University of Toronto, Toronto, Canada. * Corresponding author: vandenbroek@physik.hu-berlin.de" - }, - { - "objectID": "publications/articles/23_smpr3d_an_open_source_toolkit_for_3d_phase_contras.html", - "href": "publications/articles/23_smpr3d_an_open_source_toolkit_for_3d_phase_contras.html", - "title": "smpr3d: an open-source toolkit for 3D phase-contrast imaging from 4D-STEM datasets", + "objectID": "publications/articles/42_analysis_of_strain_and_defects_in_tellurium_wse2_m.html", + "href": "publications/articles/42_analysis_of_strain_and_defects_in_tellurium_wse2_m.html", + "title": "Analysis of Strain and Defects in Tellurium-WSe2 Moiré Heterostructures Using Scanning Nanodiffraction", "section": "", - "text": "smpr3d: an open-source toolkit for 3D phase-contrast imaging from 4D-STEM datasets P. Pelz, H. Brown, P. Ercius, I. Johnson, J. Ciston, M. Scott, C. Ophus Microscopy and Microanalysis 27, 1524-1526" + "text": "Analysis of Strain and Defects in Tellurium-WSe2 Moiré Heterostructures Using Scanning Nanodiffraction B. Sari, S. E. Zeltmann, C. Zhao, P. M. Pelz, A. Javey, A. M. Minor, C. Ophus, M. C. Scott ACS Nano 17, 22326-22333" }, { - "objectID": "publications/articles/23_smpr3d_an_open_source_toolkit_for_3d_phase_contras.html#citation-apa-7", - "href": "publications/articles/23_smpr3d_an_open_source_toolkit_for_3d_phase_contras.html#citation-apa-7", - "title": "smpr3d: an open-source toolkit for 3D phase-contrast imaging from 4D-STEM datasets", + "objectID": "publications/articles/42_analysis_of_strain_and_defects_in_tellurium_wse2_m.html#citation-apa-7", + "href": "publications/articles/42_analysis_of_strain_and_defects_in_tellurium_wse2_m.html#citation-apa-7", + "title": "Analysis of Strain and Defects in Tellurium-WSe2 Moiré Heterostructures Using Scanning Nanodiffraction", "section": "", - "text": "smpr3d: an open-source toolkit for 3D phase-contrast imaging from 4D-STEM datasets P. Pelz, H. Brown, P. Ercius, I. Johnson, J. Ciston, M. Scott, C. Ophus Microscopy and Microanalysis 27, 1524-1526" + "text": "Analysis of Strain and Defects in Tellurium-WSe2 Moiré Heterostructures Using Scanning Nanodiffraction B. Sari, S. E. Zeltmann, C. Zhao, P. M. Pelz, A. Javey, A. M. Minor, C. Ophus, M. C. Scott ACS Nano 17, 22326-22333" }, { - "objectID": "publications/articles/23_smpr3d_an_open_source_toolkit_for_3d_phase_contras.html#abstract", - "href": "publications/articles/23_smpr3d_an_open_source_toolkit_for_3d_phase_contras.html#abstract", - "title": "smpr3d: an open-source toolkit for 3D phase-contrast imaging from 4D-STEM datasets", + "objectID": "publications/articles/42_analysis_of_strain_and_defects_in_tellurium_wse2_m.html#abstract", + "href": "publications/articles/42_analysis_of_strain_and_defects_in_tellurium_wse2_m.html#abstract", + "title": "Analysis of Strain and Defects in Tellurium-WSe2 Moiré Heterostructures Using Scanning Nanodiffraction", "section": "Abstract", - "text": "Abstract\nMost current phase-contrast reconstruction algorithms for 4D-STEM datasets, like differential phase contrast [1] and ptychography [2], assume and reconstruct a 2-dimensional image. Yet modern electron microscopes allow aberration-corrected imaging with numerical apertures that enable axial resolution on the sub-10nm scale, such that three-dimensional information is available from a single view for most samples of interest. Reconstruction algorithms that allow to access this 3D phase-contrast information include multi-slice ptychography [6,7] and S-matrix phase-retrieval [3] and depth-sectioning [4,5]. Both algorithms have only recently been demonstrated for samples thicker than 2 depths of focus [4, 6], and are currently not widely available to the community. In this talk we introduce smpr3d (pronounced “semper 3d”, which stands for S - M atrix P hase R etrieval and 3D imaging; semper is latin for “always”, meaning there is (almost) always 3D information in your data), an open-source toolkit implemented using python and pytorch, that allows reconstruction of 3D phase-contrast images from single 4D-STEM scans and 4D-STEM focal-series measurements, both on single commodity hardware accelerators and High-Performance Computing architectures. We discuss common experimental parameters and preprocessing steps to produce 3D phase-contrast volumes from 4D-STEM measurements at the atomic scale." + "text": "Abstract\nIn recent years, there has been an increasing focus on 2D nongraphene materials that range from insulators to semiconductors to metals. As a single-elemental van der Waals semiconductor, tellurium (Te) has captivating anisotropic physical properties. Recent work demonstrated growth of ultrathin Te on WSe2 with the atomic chains of Te aligned with the armchair directions of the substrate using physical vapor deposition (PVD). In this system, a moiré superlattice is formed where micrometer-scale Te flakes sit on top of the continuous WSe2 film. Here, we determined the precise orientation of the Te flakes with respect to the substrate and detailed structure of the resulting moiré lattice by combining electron microscopy with image simulations. We directly visualized the moiré lattice using center of mass-differential phase contrast (CoM-DPC). We also investigated the local strain within the Te/WSe2 layered materials using scanning nanodiffraction techniques. There is a significant tensile strain at the edges of flakes along the direction perpendicular to the Te chain direction, which is an indication of the preferred orientation for the growth of Te on WSe2. In addition, we observed local strain relaxation regions within the Te film, specifically attributed to misfit dislocations, which we characterize as having a screw-like nature. The detailed structural analysis gives insight into the growth mechanisms and strain relaxation in this moiré heterostructure." }, { - "objectID": "publications/articles/33_observation_of_simultaneous_successive_twinning_us.html", - "href": "publications/articles/33_observation_of_simultaneous_successive_twinning_us.html", - "title": "Observation of Simultaneous Successive Twinning Using Atomic Electron Tomography", + "objectID": "publications/articles/20_phase_contrast_imaging_of_multiply_scattering_exte.html", + "href": "publications/articles/20_phase_contrast_imaging_of_multiply_scattering_exte.html", + "title": "Phase-contrast imaging of multiply-scattering extended objects at atomic resolution by reconstruction of the scattering matrix", "section": "", - "text": "Observation of Simultaneous Successive Twinning Using Atomic Electron Tomography P. M. Pelz, C. Groschner, A. Bruefach, C. Ophus, M. C. Scott Microscopy and Microanalysis 29, 707-708" + "text": "Phase-contrast imaging of multiply-scattering extended objects at atomic resolution by reconstruction of the scattering matrix P. M. Pelz, H. G. Brown, S. Stonemeyer, S. D. Findlay, A. Zettl, P. Ercius, Y. Zhang, J. Ciston, M. C. Scott, C. Ophus Physical Review Research 3" }, { - "objectID": "publications/articles/33_observation_of_simultaneous_successive_twinning_us.html#citation-apa-7", - "href": "publications/articles/33_observation_of_simultaneous_successive_twinning_us.html#citation-apa-7", - "title": "Observation of Simultaneous Successive Twinning Using Atomic Electron Tomography", + "objectID": "publications/articles/20_phase_contrast_imaging_of_multiply_scattering_exte.html#citation-apa-7", + "href": "publications/articles/20_phase_contrast_imaging_of_multiply_scattering_exte.html#citation-apa-7", + "title": "Phase-contrast imaging of multiply-scattering extended objects at atomic resolution by reconstruction of the scattering matrix", "section": "", - "text": "Observation of Simultaneous Successive Twinning Using Atomic Electron Tomography P. M. Pelz, C. Groschner, A. Bruefach, C. Ophus, M. C. Scott Microscopy and Microanalysis 29, 707-708" + "text": "Phase-contrast imaging of multiply-scattering extended objects at atomic resolution by reconstruction of the scattering matrix P. M. Pelz, H. G. Brown, S. Stonemeyer, S. D. Findlay, A. Zettl, P. Ercius, Y. Zhang, J. Ciston, M. C. Scott, C. Ophus Physical Review Research 3" }, { - "objectID": "publications/articles/33_observation_of_simultaneous_successive_twinning_us.html#abstract", - "href": "publications/articles/33_observation_of_simultaneous_successive_twinning_us.html#abstract", - "title": "Observation of Simultaneous Successive Twinning Using Atomic Electron Tomography", + "objectID": "publications/articles/20_phase_contrast_imaging_of_multiply_scattering_exte.html#abstract", + "href": "publications/articles/20_phase_contrast_imaging_of_multiply_scattering_exte.html#abstract", + "title": "Phase-contrast imaging of multiply-scattering extended objects at atomic resolution by reconstruction of the scattering matrix", "section": "Abstract", "text": "Abstract\n[Abstract will be added manually]" }, @@ -882,193 +924,242 @@ "text": "Abstract\nAberration-corrected electron microscopy can resolve the smallest atomic bond-lengths in nature [1-3]. However, the high-convergence angles that enable spectacular resolution in 2D can only achieve limited 3D atomic resolution for all but the smallest objects (c.a. 5 - 10 nm). We show aberration-corrected electron tomography can offer new limits to 3D imaging by sampling several focal planes at each specimen tilt. We present a theoretical foundation for aberration-corrected electron tomography by establishing analytic descriptions for resolution, sampling, object size, and dose—with direct analogy to the Crowther-Klug criterion. 2D resolving power to 3D objects >" }, { - "objectID": "footer.html", - "href": "footer.html", - "title": "ECLIPSE Lab", + "objectID": "publications/articles/27_real_time_interactive_4d_stem_phase_contrast_imagi.html", + "href": "publications/articles/27_real_time_interactive_4d_stem_phase_contrast_imagi.html", + "title": "Real-Time Interactive 4D-STEM Phase-Contrast Imaging From Electron Event Representation Data: Less computation with the right representation", "section": "", - "text": "Professur für Computational Materials MicroscopyUniversität\n Erlangen-Nürnberg\n Cauerstr. 3\n 91058 Erlangen\n Germany\n \n \n \n \n \n Imprint\n Privacy\n Accessibility" + "text": "Real-Time Interactive 4D-STEM Phase-Contrast Imaging From Electron Event Representation Data: Less computation with the right representation P. M. Pelz, I. Johnson, C. Ophus, P. Ercius, M. C. Scott IEEE Signal Processing Magazine 39, 25-31" }, { - "objectID": "trademark.html", - "href": "trademark.html", - "title": "Accessibility", + "objectID": "publications/articles/27_real_time_interactive_4d_stem_phase_contrast_imagi.html#citation-apa-7", + "href": "publications/articles/27_real_time_interactive_4d_stem_phase_contrast_imagi.html#citation-apa-7", + "title": "Real-Time Interactive 4D-STEM Phase-Contrast Imaging From Electron Event Representation Data: Less computation with the right representation", "section": "", - "text": "ECLIPSE Lab aims to make this website accessible and usable for all visitors.\n\n\n\nClear page structure and headings\nReadable contrast and typography\nKeyboard-friendly navigation where possible\n\n\n\n\nSome legacy content and embedded media may not yet fully meet current accessibility best practices.\n\n\n\nIf you encounter an accessibility barrier, please let us know via the Contact page so we can improve the site." + "text": "Real-Time Interactive 4D-STEM Phase-Contrast Imaging From Electron Event Representation Data: Less computation with the right representation P. M. Pelz, I. Johnson, C. Ophus, P. Ercius, M. C. Scott IEEE Signal Processing Magazine 39, 25-31" }, { - "objectID": "trademark.html#accessibility-statement", - "href": "trademark.html#accessibility-statement", - "title": "Accessibility", - "section": "", - "text": "ECLIPSE Lab aims to make this website accessible and usable for all visitors.\n\n\n\nClear page structure and headings\nReadable contrast and typography\nKeyboard-friendly navigation where possible\n\n\n\n\nSome legacy content and embedded media may not yet fully meet current accessibility best practices.\n\n\n\nIf you encounter an accessibility barrier, please let us know via the Contact page so we can improve the site." + "objectID": "publications/articles/27_real_time_interactive_4d_stem_phase_contrast_imagi.html#abstract", + "href": "publications/articles/27_real_time_interactive_4d_stem_phase_contrast_imagi.html#abstract", + "title": "Real-Time Interactive 4D-STEM Phase-Contrast Imaging From Electron Event Representation Data: Less computation with the right representation", + "section": "Abstract", + "text": "Abstract\n[Abstract will be added manually]" }, { - "objectID": "hyperscale.html", - "href": "hyperscale.html", + "objectID": "news.html", + "href": "news.html", "title": "ECLIPSE Lab", "section": "", - "text": "Electron microscopy is essential to understanding structure-property-function relationships in modern materials engineering, condensed matter physics, chemistry, and structural biology. Yet, due to complicated scattering physics, today’s electron microscopes can only image tiny volumes with 3D atomic resolution. Within this project, we will turn the tables by utilizing and inverting the scattering physics to image scale-bridging volumes with atomic detail and chemical superresolution. Combining compressive data-acquisition protocols, state-of-the-art electron optics and detectors, and co-designed computational imaging algorithms will make this possible." + "text": "Home\n News" }, { - "objectID": "hyperscale.html#vision-of-hyperscaleem", - "href": "hyperscale.html#vision-of-hyperscaleem", + "objectID": "news.html#news-highlights", + "href": "news.html#news-highlights", "title": "ECLIPSE Lab", - "section": "", - "text": "Electron microscopy is essential to understanding structure-property-function relationships in modern materials engineering, condensed matter physics, chemistry, and structural biology. Yet, due to complicated scattering physics, today’s electron microscopes can only image tiny volumes with 3D atomic resolution. Within this project, we will turn the tables by utilizing and inverting the scattering physics to image scale-bridging volumes with atomic detail and chemical superresolution. Combining compressive data-acquisition protocols, state-of-the-art electron optics and detectors, and co-designed computational imaging algorithms will make this possible." + "section": "News & Highlights", + "text": "News & Highlights\nThis page collects recent lab highlights across talks, awards, positions, people, and project milestones.\n\n\n\n\n\n\nJoin the ECLIPSE Lab. We are actively building the group across computational imaging, inverse problems, and AI-enabled materials characterization.\n\nExplore open opportunities\nLearn more about our research directions\nGet in touch via the contact page" }, { - "objectID": "hyperscale.html#what-were-building", - "href": "hyperscale.html#what-were-building", + "objectID": "news.html#highlights-by-topic", + "href": "news.html#highlights-by-topic", "title": "ECLIPSE Lab", - "section": "What we’re building", - "text": "What we’re building\nHyperScaleEM is building the microscopy workflow that doesn’t exist yet: an automated pipeline that can image hundreds of nanometres across with atomic-level resolution and chemical composition — in 3D, at the speed of a modern electron microscope, without human intervention at every step.\nThe core challenge isn’t the hardware — it’s that the computational methods required to reconstruct this data are too slow, too brittle, and too manual. We solve this by designing physics-informed AI that learns the microscope’s forward model and inverts it at scale, combined with closed-loop acquisition that decides where to measure next based on what it’s already seen.\nWhat this enables: A biologist studying a virus particle, a battery engineer characterising a dendrite, or a chemist imaging a catalyst — all getting the same quality of 3D atomic structure data that today only a handful of world-leading centres can produce, in hours not weeks." + "section": "Highlights by topic", + "text": "Highlights by topic\n\n\n\nTalks & conferences\n\nInternational Microscopy Conference (IMC21)\nMaterials for Sustainable Development Conference (MATSUS26)\nDPG Spring meeting 2026\n\n\n\n\nPeople & positions\n\nOpen Postdoc: Multi-modal Sensor Fusion\nShengbo You joins the team\nRadin Rahimi joins the team\n\n\n\n\nGrants, projects & lab momentum\n\nStudy commission update\nCRC 1411 Symposium\nMore research stories and updates" }, { - "objectID": "hyperscale.html#project-roadmap", - "href": "hyperscale.html#project-roadmap", + "objectID": "news.html#recent-updates", + "href": "news.html#recent-updates", "title": "ECLIPSE Lab", - "section": "Project roadmap", - "text": "Project roadmap\n\n\n\nAchieved\n\n\n3D atomic resolution in volumes >10 nm\n2023-2024\nMulti-slice electron ptychographic tomography demonstrated three-dimensional phase-contrast microscopy beyond conventional depth-of-focus limits. See also arXiv:2512.19460.\n\n\n\n\nIn progress\n\n\nScale-bridging imaging pipeline\n2025-2027\nPipeline work is connecting acquisition, reconstruction, and analysis for larger 4D-STEM volumes. Progress update.\n\n\n\n\nRamping up\n\n\nAutomated 3D chemical mapping across volumes\n2026-2028\nIntegrating hyperspectral signals with scalable 3D reconstruction so structure and chemistry can be recovered together.\n\n\n\n\nRamping up\n\n\nIn-situ dynamics capture with autonomous acquisition\n2027-2029\nClosed-loop acquisition will target dynamic processes and decide where to measure next based on the evolving reconstruction.\n\n\n\n\nRamping up\n\n\nCross-scale integration: atomic-to-nanometre bridging\n2028-2030\nThe final integration step links atomic detail with nanometre-scale context across large reconstructed volumes." + "section": "Recent updates", + "text": "Recent updates\nBelow is the reverse-chronological archive of recent news items." }, { - "objectID": "hyperscale.html#team-open-positions", - "href": "hyperscale.html#team-open-positions", + "objectID": "research.html", + "href": "research.html", "title": "ECLIPSE Lab", - "section": "Team & open positions", - "text": "Team & open positions\nHyperScaleEM is led by Prof. Philipp Pelz (PI) and a multidisciplinary team of postdoctoral researchers, PhD students, and visiting collaborators. The project is integrated with the broader ECLIPSE Lab and the CENEM Centre for Nanoanalysis at FAU Erlangen-Nürnberg.\nOpen positions funded through HyperScaleEM are advertised on the ECLIPSE Lab Opportunities page. We actively encourage applications from candidates with backgrounds in physics, materials science, computer science, or applied mathematics.\nInterested in collaboration? Contact the lab →" + "section": "", + "text": "Home\n Research" }, { - "objectID": "publications.html", - "href": "publications.html", + "objectID": "research.html#research", + "href": "research.html#research", "title": "ECLIPSE Lab", - "section": "", - "text": "Home\n Publications\n \n\n\n\n 50Publications\n 1,192Citations\n 16h-index\n 16in world’s top 10%\n 2in world’s top 1%\n 94%Open access\n Source: OpenAlex · updated 2026-09-05\n\n\n\n \n \n \n Order By\n Default\n \n Title\n \n \n Author\n \n \n Publication\n \n \n Year\n \n \n \n \n \n \n \n\n\n\n \n Gap‐Free Information Transfer in 4D‐STEM via Fusion of Complementary Scattering Channels\n S. You, G. Varnavides, S. Khavnekar, N. Palatkin, S. Shao, M. Wu, D. Stroppa, D. Chernikova, B. Zhu, R. Egoavil, S. Vespucci, D. Krishnan, X. Ye, F. K. M. Schur, E. Spiecker, P. Pelz\n Advanced Science\n (2026)\n\n \n\n \n\n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Identification of polytypism and their dislocations in bilayer MoS2 using correlative transmission electron microscopy and Raman spectroscopy\n X. Zhou, T. Dierke, M. Wu, S. You, K. Götz, T. Unruh, P. Pelz, J. Will, J. Maultzsch, E. Spiecker\n npj 2D Materials and Applications 9\n (2025)\n\n \n \n \n Raman spectroscopy\n \n Correlative\n \n Transmission electron microscopy\n \n Bilayer\n \n \n \n\n \n\n \n \n \n \n \n 2\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Kinetically Controlled Seed-Mediated Synthesis of Colloidal Copper Nanotetrahedra with Intricate Internal Structure\n S. Jeong, M. Wu, R. X. Skalla, B. Paranzino, A. Kichigin, B. Zhu, A. N. Butrum-Griffith, X. Zhan, Y. Zhong, C. Yan, P. Pelz, C. Ophus, S. Rechberger, Y. Wang, J. Chen, A. Yasuhara, Y. Aoyama, M. Kakefuda, K. A. Willets, E. Spiecker, X. Ye\n Journal of the American Chemical Society 147, 37622-37633\n (2025)\n\n \n \n \n Nanocrystal\n \n Nucleation\n \n Transmission electron microscopy\n \n Copper\n \n Surface plasmon resonance\n \n Monomer\n \n \n \n\n \n\n \n \n \n \n \n 6\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Multi-slice electron ptychographic tomography for three-dimensional phase-contrast microscopy beyond the depth of focus limits\n A. Romanov, M. G. Cho, M. C. Scott, P. Pelz\n Journal of Physics: Materials 8, 015005\n (2025)\n\n \n\n \n\n \n \n \n \n \n 8\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 2.6× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n Code\n \n \n \n \n Project Page\n \n \n \n\n \n Near-isotropic sub-Ångstrom 3d resolution phase contrast imaging achieved by end-to-end ptychographic electron tomography\n S. You, A. Romanov, P. M. Pelz\n Physica Scripta 100, 015404\n (2025)\n\n \n \n \n Tomography\n \n Isotropy\n \n Phase-contrast imaging\n \n Phase contrast microscopy\n \n Optics\n \n \n \n\n \n\n \n \n \n \n \n 11\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 4.4× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n Code\n \n \n \n \n Project Page\n \n \n \n\n \n Sub-Ångstrom 3D Resolution, Volume Imaging Beyond the Depth of Focus Limit, and Automated Tomography Using Electron Ptychography\n P. Pelz, S. You, M. Wu, N. Palatkin\n Microscopy and Microanalysis 31\n (2025)\n\n \n \n \n Ptychography\n \n Tomography\n \n Electron tomography\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Information Transfer Improvement by Parallax Correction and Ptychography Reconstruction Applied to Fast Large-Area 4D STEM Experiments\n D. G. Stroppa, S. Ribet, G. Varnavides, C. Ophus, P. Pelz\n Microscopy and Microanalysis 30\n (2024)\n\n \n \n \n Parallax\n \n Ptychography\n \n Optics\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Information Transfer Improvement by Parallax Correction and Ptychography Reconstruction Applied to Large-Area 4D STEM Experiments\n D. Stroppa, S. Ribet, G. Varnavides, C. Ophus, P. Pelz\n BIO Web of Conferences 129, 04027\n (2024)\n\n \n \n \n Parallax\n \n Ptychography\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n The 4D Camera: An 87 kHz Direct Electron Detector for Scanning/Transmission Electron Microscopy\n P. Ercius, I. J. Johnson, P. Pelz, B. H. Savitzky, L. Hughes, H. G. Brown, S. E. Zeltmann, S. Hsu, C. C. S. Pedroso, B. E. Cohen, R. Ramesh, D. Paul, J. M. Joseph, T. Stezelberger, C. Czarnik, M. Lent, E. Fong, J. Ciston, M. C. Scott, C. Ophus, A. M. Minor, P. Denes\n Microscopy and Microanalysis 30, 903-912\n (2024)\n\n \n \n \n Electron\n \n Scanning transmission electron microscopy\n \n Detector\n \n Scanning confocal electron microscopy\n \n Conventional transmission electron microscope\n \n Transmission electron microscopy\n \n \n \n\n \n\n \n \n \n \n \n 35\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 3.9× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Towards in-situ 4D-STEM observation of texture evolution in nano-crystalline thin films\n M. Wu, C. Hsieh, D. Stroppa, P. Pelz, C. Ophus, P. Lu, R. Dunin-Borkowski, C. Harreiss, P. Denninger, E. Spiecker\n BIO Web of Conferences 129, 07006\n (2024)\n\n \n \n \n In situ\n \n Nano-\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Using Phase Contrast 4D-STEM to solve 3D Inorganic and Biological Nanostructures\n C. Ophus, S. Ribet, G. Varnavides, P. M. Pelz\n Microscopy and Microanalysis 30\n (2024)\n\n \n \n \n Phase contrast microscopy\n \n Nanostructure\n \n Nanotechnology\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Analysis of Strain and Defects in Tellurium-WSe2 Moiré Heterostructures Using Scanning Nanodiffraction\n B. Sari, S. E. Zeltmann, C. Zhao, P. M. Pelz, A. Javey, A. M. Minor, C. Ophus, M. C. Scott\n ACS Nano 17, 22326-22333\n (2023)\n\n \n \n \n Heterojunction\n \n Tellurium\n \n Semiconductor\n \n Condensed matter physics\n \n Moiré pattern\n \n \n \n\n \n\n \n \n \n \n \n 18\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Controlled Self-Assembly of Gold Nanotetrahedra into Quasicrystals and Complex Periodic Supracrystals\n Y. Wang, J. Chen, R. Li, A. Götz, D. Drobek, T. Przybilla, S. Hübner, P. Pelz, L. Yang, B. A. Zubiri, E. Spiecker, M. Engel, X. Ye\n Journal of the American Chemical Society 145, 17902-17911\n (2023)\n\n \n \n \n Quasicrystal\n \n Tetrahedron\n \n Self-assembly\n \n Curvature\n \n \n \n\n \n\n \n \n \n \n \n 32\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 2.4× field avg\n \n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n High-resolution 3D phase-contrast imaging beyond the depth of field limit via ptychographic multi-slice electron tomography\n A. V. Romanov, M. G. Cho, M. Scott, C. Ophus, P. Pelz\n arXiv (Cornell University)\n (2023)\n\n \n \n \n Electron tomography\n \n Optics\n \n Phase-contrast imaging\n \n \n \n\n \n\n \n \n \n \n \n 1\n cit\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Imaging the electron charge density in monolayer MoS2 at the Ångstrom scale\n J. Martis, S. Susarla, A. Rayabharam, C. Su, T. Paule, P. Pelz, C. Huff, X. Xu, H. Li, M. Jaikissoon, V. Chen, E. Pop, K. Saraswat, A. Zettl, N. R. Aluru, R. Ramesh, P. Ercius, A. Majumdar\n Nature Communications 14\n (2023)\n\n \n \n \n Core charge\n \n Electron\n \n Core electron\n \n Scanning transmission electron microscopy\n \n Atomic physics\n \n Valence electron\n \n \n \n\n \n\n \n \n \n \n \n 33\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 6.4× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Observation of Simultaneous Successive Twinning Using Atomic Electron Tomography\n P. M. Pelz, C. Groschner, A. Bruefach, C. Ophus, M. C. Scott\n Microscopy and Microanalysis 29, 707-708\n (2023)\n\n \n \n \n Crystal twinning\n \n Electron tomography\n \n Electron\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Resolution of Virtual Depth Sectioning from Four-Dimensional Scanning Transmission Electron Microscopy\n E. W. C. Terzoudis-Lumsden, T. C. Petersen, H. G. Brown, P. M. Pelz, C. Ophus, S. D. Findlay\n Microscopy and Microanalysis 29, 1409-1421\n (2023)\n\n \n \n \n Optical sectioning\n \n Optics\n \n Parallax\n \n Dark field microscopy\n \n Scanning transmission electron microscopy\n \n Scattering\n \n \n \n\n \n\n \n \n \n \n \n 14\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 2.7× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Solving complex nanostructures with ptychographic atomic electron tomography\n P. M. Pelz, S. M. Griffin, S. Stonemeyer, D. Popple, H. DeVyldere, P. Ercius, A. Zettl, M. C. Scott, C. Ophus\n Nature Communications 14\n (2023)\n\n \n \n \n Electron tomography\n \n Nanomaterials\n \n Atomic units\n \n Electron diffraction\n \n High-resolution transmission electron microscopy\n \n \n \n\n \n\n \n \n \n \n \n 56\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 14.6× field avg\n \n \n\n \n \n Top 1%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Using 4D-STEM to measure the nanoscale structure of materials in two and three dimensions\n C. Ophus, P. M. Pelz, H. A. Sternlict, B. H. Savitzky, A. Rakowski, A. Bruefach, S. Ribet, M. S. Scott\n Acta Crystallographica Section A Foundations and Advances 79, C251-C251\n (2023)\n\n \n \n \n Nanoscopic scale\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Using a fast hybrid pixel detector for dose-efficient diffraction imaging beam-sensitive organic molecular thin films\n M. Wu, D. G. Stroppa, P. Pelz, E. Spiecker\n Journal of Physics: Materials 6, 045008\n (2023)\n\n \n \n \n Detector\n \n Crystallite\n \n Optics\n \n \n \n\n \n\n \n \n \n \n \n 11\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Virtual imaging enabled by scattering matrix reconstruction from 4D scanning transmission electron microscopy\n E. W. C. Terzoudis-Lumsden, T. C. Petersen, H. G. Brown, P. M. Pelz, C. Ophus, S. D. Findlay\n Acta Crystallographica Section A Foundations and Advances 79, C1092-C1092\n (2023)\n\n \n \n \n Scanning transmission electron microscopy\n \n Scattering\n \n Transmission electron microscopy\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n A Three-Dimensional Reconstruction Algorithm for Scanning Transmission Electron Microscopy Data from a Single Sample Orientation\n H. G. Brown, P. M. Pelz, S. Hsu, Z. Zhang, R. Ramesh, K. Inzani, E. Sheridan, S. M. Griffin, M. Schloz, T. C. Pekin, C. T. Koch, S. D. Findlay, L. J. Allen, M. C. Scott, C. Ophus, J. Ciston\n Microscopy and Microanalysis 28, 1632-1640\n (2022)\n\n \n \n \n Electron tomography\n \n Scanning confocal electron microscopy\n \n Transmission electron microscopy\n \n Scanning transmission electron microscopy\n \n Microscopy\n \n Optics\n \n \n \n\n \n\n \n \n \n \n \n 14\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Observation of formation and local structures of metal-organic layers via complementary electron microscopy techniques\n X. Peng, P. M. Pelz, Q. Zhang, P. Chen, L. Cao, Y. Zhang, H. Liao, H. Zheng, C. Wang, S. Sun, M. C. Scott\n Nature Communications 13\n (2022)\n\n \n \n \n Transmission electron microscopy\n \n Electron microscope\n \n \n \n\n \n\n \n \n \n \n \n 45\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 2.8× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Qualitative Phase Contrast Imaging using Interferometric 4DSTEM\n A. Ducharme, P. Pelz, L. Brown, P. Ercius, B. McMorran\n Microscopy and Microanalysis 28, 2504-2505\n (2022)\n\n \n \n \n Interferometry\n \n Phase contrast microscopy\n \n Phase-contrast imaging\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Real-Time Interactive 4D-STEM Phase-Contrast Imaging From Electron Event Representation Data: Less computation with the right representation\n P. M. Pelz, I. Johnson, C. Ophus, P. Ercius, M. C. Scott\n IEEE Signal Processing Magazine 39, 25-31\n (2022)\n\n \n \n \n Detector\n \n Scanning transmission electron microscopy\n \n Frame rate\n \n \n \n\n \n\n \n \n \n \n \n 28\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 3.0× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Simultaneous Successive Twinning Captured by Atomic Electron Tomography\n P. M. Pelz, C. Groschner, A. Bruefach, A. Satariano, C. Ophus, M. C. Scott\n ACS Nano 16, 588-596\n (2022)\n\n \n \n \n Crystal twinning\n \n Icosahedral symmetry\n \n Nanostructure\n \n Electron tomography\n \n Nanoparticle\n \n Atomic units\n \n \n \n\n \n\n \n \n \n \n \n 26\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 3.0× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Structured Illumination Electron Ptychography at the Atomic Scale\n P. Pelz, H. DeVyldere, P. Ercius, M. Scott\n Microscopy and Microanalysis 28, 388-390\n (2022)\n\n \n \n \n Atomic units\n \n Ptychography\n \n \n \n\n \n\n \n \n \n \n \n 4\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n A Fast Algorithm for Scanning Transmission Electron Microscopy Imaging and 4D-STEM Diffraction Simulations\n P. M. Pelz, A. Rakowski, L. R. DaCosta, B. H. Savitzky, M. C. Scott, C. Ophus\n Microscopy and Microanalysis 27, 835-848\n (2021)\n\n \n \n \n Prism\n \n Scanning transmission electron microscopy\n \n Scattering\n \n \n \n\n \n\n \n \n \n \n \n 17\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 2.1× field avg\n \n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n A faster image simulation algorithm for scanning transmission electron microscopy\n P. Pelz, L. DaCosta, A. M. Rakowski, M. Scott, C. Ophus\n Microscopy and Microanalysis 27, 1272-1275\n (2021)\n\n \n \n \n Transmission electron microscopy\n \n Scanning transmission electron microscopy\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Materials Science Applications and Analysis of Very Large 4D-STEM Experiments\n C. Ophus, B. Savitzky, P. Pelz, A. M. Rakowski, L. R. DaCosta, L. Hughes, S. Zeltmann, K. C. Bustillo, M. Scott, A. Minor\n Microscopy and Microanalysis 27, 14-15\n (2021)\n\n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Phase-contrast imaging of multiply-scattering extended objects at atomic resolution by reconstruction of the scattering matrix\n P. M. Pelz, H. G. Brown, S. Stonemeyer, S. D. Findlay, A. Zettl, P. Ercius, Y. Zhang, J. Ciston, M. C. Scott, C. Ophus\n Physical Review Research 3\n (2021)\n\n \n \n \n Scattering\n \n Optics\n \n \n \n\n \n\n \n \n \n \n \n 21\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 4.0× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Prismatic 2.0 – Simulation software for scanning and high resolution transmission electron microscopy (STEM and HRTEM)\n L. R. DaCosta, H. G. Brown, P. M. Pelz, A. Rakowski, N. Barber, P. O’Donovan, P. McBean, L. Jones, J. Ciston, M. Scott, C. Ophus\n Micron 151, 103141\n (2021)\n\n \n \n \n Computational science\n \n Scanning transmission electron microscopy\n \n \n \n\n \n\n \n \n \n \n \n 99\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 10.6× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Py4DSTEM: A Software Package for Four-Dimensional Scanning Transmission Electron Microscopy Data Analysis\n B. H. Savitzky, S. E. Zeltmann, L. A. Hughes, H. G. Brown, S. Zhao, P. M. Pelz, T. C. Pekin, E. S. Barnard, J. Donohue, L. R. DaCosta, E. Kennedy, Y. Xie, M. T. Janish, M. M. Schneider, P. Herring, C. Gopal, A. Anapolsky, R. Dhall, K. C. Bustillo, P. Ercius, M. C. Scott, J. Ciston, A. M. Minor, C. Ophus\n Microscopy and Microanalysis 27, 712-743\n (2021)\n\n \n \n \n Software\n \n \n \n\n \n\n \n \n \n \n \n 345\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 28.8× field avg\n \n \n\n \n \n Top 1%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Real-time interactive ptychography from electron event representation data\n P. Pelz, P. Ercius, C. Ophus, I. Johnson, M. Scott\n Microscopy and Microanalysis 27, 188-189\n (2021)\n\n \n \n \n Detector\n \n Ptychography\n \n Frame rate\n \n Scanning transmission electron microscopy\n \n \n \n\n \n\n \n \n \n \n \n 6\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Scalable multicomponent spectral analysis for high-throughput data\n annotation\n R. P. Xian, R. Ernstorfer, P. Pelz\n arXiv (Cornell University)\n (2021)\n\n \n \n \n Scalability\n \n Throughput\n \n Computational science\n \n Annotation\n \n Software\n \n Parametric statistics\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Scattering Matrix Determination in Crystalline Materials from 4D Scanning Transmission Electron Microscopy at a Single Defocus Value\n S. D. Findlay, H. G. Brown, P. M. Pelz, C. Ophus, J. Ciston, L. J. Allen\n Microscopy and Microanalysis 27, 744-757\n (2021)\n\n \n \n \n Scattering\n \n Scanning transmission electron microscopy\n \n Optics\n \n Transmission electron microscopy\n \n Electron scattering\n \n \n \n\n \n\n \n \n \n \n \n 9\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n smpr3d: an open-source toolkit for 3D phase-contrast imaging from 4D-STEM datasets\n P. Pelz, H. Brown, P. Ercius, I. Johnson, J. Ciston, M. Scott, C. Ophus\n Microscopy and Microanalysis 27, 1524-1526\n (2021)\n\n \n \n \n Phase contrast microscopy\n \n Open source\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n A single-projection three-dimensional reconstruction algorithm for scanning transmission electron microscopy data\n H. G. Brown, P. Pelz, S. Hsu, Z. Zhang, R. Ramesh, K. Inzani, E. Sheridan, S. M. Griffin, M. Schloz, T. C. Pekin, C. T. Koch, S. D. Findlay, L. J. Allen, M. Scott, C. Ophus, J. Ciston\n arXiv (Cornell University)\n (2020)\n\n \n \n \n Electron tomography\n \n Scanning confocal electron microscopy\n \n Transmission electron microscopy\n \n Scanning transmission electron microscopy\n \n Microscopy\n \n Yttrium\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Achieving High-resolution of Large Specimens Using Aberration-corrected Tomography\n R. Yalisove, S. H. Sung, J. Schwartz, C. Groschner, P. Pelz, H. Zheng, Y. Jiang, C. Ophus, M. Scott, P. Ercius, R. Hovden\n Microscopy and Microanalysis 26, 1860-1862\n (2020)\n\n \n \n \n Tomography\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Improving the Speed and Accuracy of Large-scale Scanning Transmission Electron Microscopy (STEM) Electron Scattering Simulations\n C. Ophus, H. Brown, L. R. Dacosta, P. Pelz, J. Schwartz, R. Yalisove, R. Hovden, J. Ciston, B. Savitzky\n Microscopy and Microanalysis 26, 456-458\n (2020)\n\n \n \n \n Scanning transmission electron microscopy\n \n Electron\n \n Scattering\n \n Transmission electron microscopy\n \n \n \n\n \n\n \n \n \n \n \n 2\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Phase Contrast Imaging in Thick, Heterogeneous Samples via S-Matrix Phase Retrieval and Depth Sectioning\n P. Pelz, H. Brown, S. Findlay, M. Scott, J. Ciston, C. Ophus\n Microscopy and Microanalysis 26, 462-464\n (2020)\n\n \n \n \n Phase contrast microscopy\n \n Phase-contrast imaging\n \n \n \n\n \n\n \n \n \n \n \n 2\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Reconstructing the Scattering Matrix from Scanning Electron Diffraction Measurements Alone\n P. Pelz, H. G. Brown, J. Ciston, S. D. Findlay, Y. Zhang, M. Scott, C. Ophus\n arXiv (Cornell University)\n (2020)\n\n \n \n \n Scattering\n \n Optics\n \n Diffraction\n \n Wavefront\n \n \n \n\n \n\n \n \n \n \n \n 6\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n The 4D Camera – An 87 kHz Frame-rate Detector for Counted 4D-STEM Experiments\n P. Ercius, I. Johnson, H. Brown, P. Pelz, S. Hsu, B. Draney, E. Fong, A. Goldschmidt, J. Joseph, J. Lee, J. Ciston, C. Ophus, M. Scott, A. Selvarajan, D. Paul, D. Skinner, M. Hanwell, C. Harris, P. Avery, T. Stezelberger, C. Tindall, R. Ramesh, A. Minor, P. Denes\n Microscopy and Microanalysis 26, 1896-1897\n (2020)\n\n \n \n \n Detector\n \n \n \n\n \n\n \n \n \n \n \n 38\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 6.4× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n 3D Imaging Using HAADF-STEM and HRTEM Atomic Electron Tomography\n C. Ophus, D. Ren, J. Zhou, H. Devyldere, M. Chen, P. M. Pelz, P. Ercius, J. Miao, M. Scott, L. Waller\n Microscopy and Microanalysis 25, 394-395\n (2019)\n\n \n \n \n High-resolution transmission electron microscopy\n \n Electron tomography\n \n Scanning transmission electron microscopy\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Advanced Phase Reconstruction Methods Enabled by Four-Dimensional Scanning Transmission Electron Microscopy\n C. Ophus, T. R. Harvey, F. S. Yasin, H. G. Brown, P. M. Pelz, B. H. Savitzky, J. Ciston, B. J. McMorran\n Microscopy and Microanalysis 25, 10-11\n (2019)\n\n \n \n \n Scanning transmission electron microscopy\n \n Transmission electron microscopy\n \n Scanning confocal electron microscopy\n \n \n \n\n \n\n \n \n \n \n \n 14\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Electron Ptychography of Single Biological Macromolecules\n P. M. Pelz, R. Bücker, G. Ramm, H. Venugopal, G. Kassier, D. Eggert, P. Lu, R. E. Dunin-Borkowski, R. J. D. Miller\n Microscopy and Microanalysis 25, 72-73\n (2019)\n\n \n\n \n\n \n \n \n \n \n 5\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Engineering Chiral Structures Through Strain Release: Electron Tomography Study of Twisted Nanowires\n X. Song, A. Bruefach, P. M. Pelz, H. Devyldere, M. Scott\n Microscopy and Microanalysis 25, 1804-1805\n (2019)\n\n \n \n \n Nanowire\n \n Electron tomography\n \n Electron\n \n \n \n\n \n\n \n \n \n \n \n 1\n cit\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Towards Ptychography with Structured Illumination, and a Derivative-Based Reconstruction Algorithm\n W. V. d. Broek, M. Schloz, T. Pekin, P. Pelz, P. Lu, M. Kruth, V. Grillo, R. Dunin-Borkowski, R. Miller, C. Koch\n Microscopy and Microanalysis 25, 58-59\n (2019)\n\n \n\n \n\n \n \n \n \n \n 7\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Low-dose cryo electron ptychography via non-convex Bayesian optimization\n P. M. Pelz, W. X. Qiu, R. Bücker, G. Kassier, R. J. D. Miller\n Scientific Reports 7\n (2017)\n\n \n \n \n Ptychography\n \n Phase retrieval\n \n Optics\n \n \n \n\n \n\n \n \n \n \n \n 85\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 6.8× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n On-the-fly scans for X-ray ptychography\n P. M. Pelz, M. Guizar-Sicairos, P. Thibault, I. Johnson, M. Holler, A. Menzel\n Applied Physics Letters 105\n (2014)\n\n \n \n \n Ptychography\n \n Optics\n \n Mesoscopic physics\n \n \n \n\n \n\n \n \n \n \n \n 141\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 10.2× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Photo-double-ionization of ethylene and acetylene near threshold\n B. Gaire, S. Y. Lee, D. J. Haxton, P. M. Pelz, I. Bocharova, F. P. Sturm, N. Gehrken, M. Honig, M. Pitzer, D. Metz, H. Kim, M. Schöffler, R. Dörner, H. Gassert, S. Zeller, J. Voigtsberger, W. Cao, M. Zohrabi, J. Williams, A. Gatton, D. Reedy, C. Nook, T. Müller, A. L. Landers, C. L. Cocke, I. Ben-Itzhak, T. Jahnke, A. Belkacem, T. Weber\n Physical Review A 89\n (2014)\n\n \n \n \n Dication\n \n Double ionization\n \n Ionization\n \n Atomic physics\n \n Excited state\n \n Singlet state\n \n \n \n\n \n\n \n \n \n \n \n 50\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 3.0× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n\n\n\nNo matching items" + "section": "Research", + "text": "Research\nPrefer a problem-first view? See Research by Problem.\n\n \n \n \n \n \n The complete 3D atomic structure of a complex nanomaterial — recovered from a 4D-STEM tomography dataset by ptychographic atomic electron tomography, where conventional methods fall short. Nat. Commun., 2023" }, { - "objectID": "people.html", - "href": "people.html", + "objectID": "research.html#key-milestones", + "href": "research.html#key-milestones", "title": "ECLIPSE Lab", - "section": "", - "text": "Home\n People" + "section": "Key Milestones", + "text": "Key Milestones\n\n\n\n 2023\n Nat. Commun.\n \n First atomic-resolution 3D volume from 4D-STEM tomography \n \n\n\n\n 2024\n Phys. Scripta\n \n Sub-Ångstrom end-to-end reconstruction - new 3D phase-contrast resolution record \n \n\n\n\n 2025\n arXiv:2512.19460\n \n Gap-free atomic contrast transfer via fusion of dark-field and bright-field signals." }, { - "objectID": "people.html#jump-to", - "href": "people.html#jump-to", + "objectID": "research.html#capability-areas", + "href": "research.html#capability-areas", "title": "ECLIPSE Lab", - "section": "Jump to", - "text": "Jump to\nPrincipal Investigator · Postdocs · PhD Students · MSc Students · Research Assistants · BSc Students · Admin Assistants · Honorary Members · Alumni" + "section": "Capability areas", + "text": "Capability areas\n\nComputational imaging for difficult 3D measurements\nWhat we build\nWe develop 3D imaging methods based on 4D-STEM and related computational reconstruction pipelines for large-scale, dose-efficient, high-resolution measurements.\nWhy it matters\nMany important materials problems require 3D information at high resolution, but conventional workflows remain too slow, too dose-intensive, or too limited for weakly scattering structures.\nRepresentative results\n\n2023: first atomic-resolution 3D volume from 4D-STEM tomography\n2024: first atomic-resolution phase-contrast volume beyond the depth of focus limit · project page\n2024: first end-to-end reconstruction reaching sub-Angstrom resolution · project page\n\n\n \n \n \n \n \n A sub-Ångström 3D phase-contrast volume — a resolution record set by an end-to-end pipeline that recovers more structure per electron, opening low-dose 3D imaging of beam-sensitive materials. Phys. Scripta, 2024 · project page\n\nCollaboration angle We are interested in collaborations where new reconstruction methods can unlock 3D structure, chemistry, or sensitivity in experimentally challenging datasets.\n\n\nFast simulation and model-based electron microscopy\nWhat we build\nWe develop fast simulators and model-based workflows for electron microscopy that support method design, reconstruction, and quantitative interpretation.\nWhy it matters\nSimulation is essential for testing algorithms, understanding signal formation, and scaling new microscopy methods to realistic experiments.\nRepresentative result\n\n>100x faster simulations\n\nCollaboration angle\nThis is relevant for groups who need reliable forward models, synthetic benchmarks, or tighter coupling between experiment and computation.\n\n\nMulti-modal microscopy\nWhat we build\nWe are developing new approaches for multi-modal 3D imaging, down to the atomic scale.\nWhy it matters Combining complementary signals can reveal structure, chemistry, and function more effectively than single-mode imaging alone.\n\n \n Beyond atomic positions: the electron charge density of monolayer MoS₂ resolved at the Ångström scale — the kind of richer, multi-faceted information that fusing complementary signals can reveal. Nat. Commun., 2023\n\nCollaboration angle We welcome collaborations where multimodal data fusion or cross-signal interpretation is the limiting step.\n\n\nSelf-driving and automated microscopy\nWhat we build\nWe develop automation methods for electron microscopy, including end-to-end and self-driving workflows.\nWhy it matters\nAutomation reduces friction in advanced experiments, improves repeatability, and enables higher-throughput scientific discovery.\nRepresentative result\n\nAutomated end-to-end ptychographic tomography\n\nCollaboration angle\nThis is particularly relevant for partners who want more robust acquisition, scalable pipelines, or autonomous microscopy workflows." }, { - "objectID": "people.html#principal-investigator", - "href": "people.html#principal-investigator", + "objectID": "research.html#research-funding", + "href": "research.html#research-funding", "title": "ECLIPSE Lab", - "section": "Principal Investigator", - "text": "Principal Investigator\n\n\n\n\n\n\n\n\n\n\nPhilipp Pelz\n\n\nPrincipal Investigator\n\n\n\n\n\nNo matching items" + "section": "Research Funding", + "text": "Research Funding\n\nCurrent Funding\n\n\n\n\nProject / Grant\nRole\nPeriod\n\n\n\n\n\nBacaTec FAU-Stanford Collaboration\nPelz (PI)\n01/2026 – 12/2027\n\n\n\nCorMic Graduate SchoolDFG Graduate School Correlative Materials Microscopy\nPelz (Co-PI)\n04/2026 – 03/2031\n\n\n\nHyperScaleEM: Revealing 3D Atomic Structure and Chemistry in Scale-Bridging Volumes via 5D Hyperspectral Electron TomographyERC Starting grant\nPelz (PI)\n02/2025 – 01/2030\n\n\n\n\n\nCompleted Funding\n\n\n\n\nProject / Grant\nRole\nPeriod\n\n\n\n\n\n*ScatterEM: Utilizing scattering to enhance throughput and sensitivity in electron microscopyEAM Starting grant\nPelz (PI)\n01/2023 – 12/2024\n\n\n\n* ScatterEM project page coming soon" }, { - "objectID": "people.html#postdocs", - "href": "people.html#postdocs", + "objectID": "research.html#research-methodology", + "href": "research.html#research-methodology", "title": "ECLIPSE Lab", - "section": "Postdocs", - "text": "Postdocs\n\n\n\n\n\n\n\n\n\n\nShengbo You\n\n\nPostdoc\n\n\n\n\n\n\n\n\n\n\n\n\nSebastian Kruber\n\n\nPostdoc\n\n\n\n\n\nNo matching items" + "section": "Research Methodology", + "text": "Research Methodology\nPhysics-informed reconstruction is at the core of everything we do. We incorporate prior physical knowledge — from scattering physics and diffraction theory to spectral response characteristics — directly into the inverse problem formulation. This means our image reconstruction does not treat the microscope as a black box, but as a well-characterised physical system with known error modes, noise characteristics, and signal transfer functions. Combining complementary signal channels — including annular dark-field, ptychography, EELS, and EDS — lets us recover information that no single modality can capture alone.\nModern machine learning tools are woven into our workflow at every stage. We use deep learning to accelerate expensive forward simulations, to robustify phase retrieval against experimental imperfections such as beam damage and sample drift, and to extract chemically meaningful features from high-dimensional 4D-STEM datasets. Importantly, we treat ML as a tool augmenting physics-based models rather than replacing them — our reconstructions remain interpretable and physically grounded.\nAutomation and reproducibility are foundational to our experimental practice. Our self-driving microscopy pipelines use closed-loop feedback to maximise information yield per acquisition, enabling high-throughput experiments without sacrificing resolution. All reconstruction pipelines, simulation codes, and experimental protocols are version-controlled and openly shared, ensuring that our results are reproducible and that our methods can be applied by the broader community." }, { - "objectID": "people.html#phd-students", - "href": "people.html#phd-students", + "objectID": "teaching.html", + "href": "teaching.html", "title": "ECLIPSE Lab", - "section": "PhD Students", - "text": "PhD Students\n\n\n\n\n\n\n\n\n\n\nUmah Chukwudi Williams\n\n\nDoctoral Researcher\n\n\n\n\n\n\n\n\n\n\n\n\nNikita Palatkin\n\n\nDoctoral Researcher\n\n\n\n\n\n\n\n\n\n\n\n\nSihan Shao\n\n\nDoctoral Researcher\n\n\n\n\n\nNo matching items" + "section": "", + "text": "The ECLIPSE Lab teaches undergraduate and graduate courses in materials science and applied data science at FAU Erlangen-Nürnberg. All courses are open to students in Materials Science and related programmes — see individual course cards below for enrollment links and lecture details." }, { - "objectID": "people.html#msc-students", - "href": "people.html#msc-students", + "objectID": "teaching.html#summer-semester-2026", + "href": "teaching.html#summer-semester-2026", "title": "ECLIPSE Lab", - "section": "MSc Students", - "text": "MSc Students\n\n\n\n\n\n\n\n\n\n\nBardia Nasiri Sharaf\n\n\nMSc Student\n\n\n\n\n\nStarted\n\n\n2026\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\nMohsen Moazam\n\n\nMSc Student\n\n\n\n\n\nStarted\n\n\n2026\n\n\n\n\n\n\n\n\nNo matching items" + "section": "Summer Semester 2026", + "text": "Summer Semester 2026\n\n\n\n\n Materialgenomik\n \n 🗓️ Tue 16:15h - 17:45h\n 📍 0.68 WW building\n \n Website\n\n\n\n\n Machine Learning for Processing & Characterization\n \n 🗓️ Tue 14:15h - 15:45h\n 📍 0.68 WW building\n \n \n Website\n\n\n\n\n Mathematical Foundations of AI/ML\n \n 🗓️ Mon 10:15h - 11:45h\n 📍 Rm 01.156 IZNF\n \n \n Website" }, { - "objectID": "people.html#research-assistants", - "href": "people.html#research-assistants", + "objectID": "teaching.html#winter-semester-20252026", + "href": "teaching.html#winter-semester-20252026", "title": "ECLIPSE Lab", - "section": "Research Assistants", - "text": "Research Assistants\n\n\n\n\n\n\n\n\n\n\nHuseyn Shahuseynov\n\n\nMSc Student\n\n\n\n\n\nStarted\n\n\n2026\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\nNadia Haddadnia\n\n\nMSc Student\n\n\n\n\n\nStarted\n\n\nApr 2026\n\n\n\n\n\n\n\n\nNo matching items" + "section": "Winter Semester 2025/2026", + "text": "Winter Semester 2025/2026\n\n\n\n\n Materials & Structure (MAP)\n \n 🗓️ Tue 12:00h - 13:30h \n 📍 H14 Cauerstr. 3\n \n Studon\n\n\n\n\n Basics of Microscopy\n \n 🗓️ Wed 12:00h - 13:30h \n 📍 H15 Cauerstr. 3\n \n Studon\n\n\n\n\n Mathematical Foundations of AI/ML\n \n 🗓️ Mon 10:15h - 11:45h\n 📍 Rm 01.156 IZNF\n \n Studon" }, { - "objectID": "people.html#honorary-members", - "href": "people.html#honorary-members", + "objectID": "teaching.html#summer-semester-2025", + "href": "teaching.html#summer-semester-2025", "title": "ECLIPSE Lab", - "section": "Honorary Members", - "text": "Honorary Members\n\n\n\n\n\n\n\n\n\n\nYan Mei\n\n\nDoctoral Researcher\n\n\n\n\n\nstarted\n\n\n2026\n\n\n\n\n\n\n\n\nNo matching items" + "section": "Summer Semester 2025", + "text": "Summer Semester 2025\n\n\n\n\n Materials & Structure (Clean Energy)\n \n 🗓️ Tue 10:15h - 11:45h\n 📍 0.68 WW building\n \n Studon\n\n\n\n\n Data Science for Electron Microscopy\n \n 🗓️ Tue 16:15h - 17:45h\n 📍 IZNF Rm 01.160\n \n Website\n\n\n\n\n Machine Learning for Microscopy\n \n 🗓️ Thu 16:15h - 17:45h\n 📍 IZNF Rm 01.160\n \n Website\n\n\n\n\n Materials & Structure Seminar\n \n 🗓️ Thu 16:15h - 17:45h\n 📍 0.68 WW building\n \n Website" }, { - "objectID": "people.html#bsc-students", - "href": "people.html#bsc-students", + "objectID": "teaching.html#winter-semester-2024", + "href": "teaching.html#winter-semester-2024", "title": "ECLIPSE Lab", - "section": "BSc Students", - "text": "BSc Students\nCurrently no BSc students are listed." + "section": "Winter Semester 2024", + "text": "Winter Semester 2024\n\n\n\n\n Materials & Structure (MAP)\n \n 🗓️ Fri 10:15h – 11:45h\n 📍 Seminar Room 0.68 WW building\n \n Studon\n\n\n\n\n Data Science for Electron Microscopy\n \n 🗓️ Fri 8:30h – 10:00h\n 📍 IZNF Rm 01.160\n \n Website\n\n\n\n\n Machine Learning for Microscopy\n \n 🗓️ Wed 8:30h – 10:00h\n 📍 IZNF Rm 01.140\n \n Studon" }, { - "objectID": "people.html#admin-assistants", - "href": "people.html#admin-assistants", + "objectID": "teaching.html#summer-semester-2024", + "href": "teaching.html#summer-semester-2024", "title": "ECLIPSE Lab", - "section": "Administrative Assistants", - "text": "Administrative Assistants\n\n\n\n\n\n\n\n\n\n\nBirke Kohlheim\n\n\nSecretary\n\n\n\n\n\nstarted\n\n\n \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\nYesim Tosun\n\n\nSecretary\n\n\n\n\n\nstarted\n\n\n \n\n\n\n\n\n\n\n\nNo matching items" + "section": "Summer Semester 2024", + "text": "Summer Semester 2024\n\n\n\n\n Materials & Structure (BSc Clean Energy)\n \n 🗓️ Thu 10:15h – 11:45h\n 📍 FAU\n \n Studon\n\n\n\n\n Data Science for Electron Microscopy\n \n 🗓️ Wed 10:15h – 11:45h\n 📍 IZNF Rm 01.160\n \n Studon\n\n\n\n\n Machine Learning for Microscopy\n \n 🗓️ Wed 8:30h – 10:00h\n 📍 IZNF Rm 01.160\n \n Studon" }, { - "objectID": "people.html#alumni", - "href": "people.html#alumni", + "objectID": "teaching.html#winter-semester-2023", + "href": "teaching.html#winter-semester-2023", "title": "ECLIPSE Lab", - "section": "Alumni", - "text": "Alumni\n\n\n \n \n \n Order By\n Default\n \n Name\n \n \n Role\n \n \n Started\n \n \n Ended\n \n \n \n \n \n \n \n\n\n\n\n\n\nName\n\n\n\nRole\n\n\n\nStarted\n\n\n\nEnded\n\n\n\n\n\n\n\n\nAndrey Romanov\n\n\nPostdoc\n\n\nJuli 2023\n\n\nJune 2024\n\n\n\n\n\n\nPhilipp Herz\n\n\nDoctoral Researcher\n\n\nMar 2025\n\n\nSep 2025\n\n\n\n\n\n\nRadin Rahimi\n\n\nMaster Thesis Student\n\n\nSeptember 2023\n\n\n2026\n\n\n\n\n\n\nDasun Ranakawa\n\n\nMaster Thesis Student\n\n\nMay 2025\n\n\n2026\n\n\n\n\n\n\nGaurab Dhungana\n\n\nResearch Assistant\n\n\nJune 2023\n\n\nOct 2023\n\n\n\n\n\n\nNo matching items" + "section": "Winter Semester 2023", + "text": "Winter Semester 2023\n\n\n\n\n Materials & Structure\n \n 🗓️ Check Studon for schedule\n \n Studon\n\n\n\n\n Data Science for Electron Microscopy\n \n 🗓️ Tue 8:30h – 10:00h\n 📍 IZNF Rm 01.160\n \n Studon\n\n\n\n\n Machine Learning for Microscopy\n \n 🗓️ Thu 8:30h – 10:00h\n 📍 IZNF Rm 01.160\n \n Studon" }, { - "objectID": "opportunities.html", - "href": "opportunities.html", + "objectID": "teaching.html#summer-semester-2023", + "href": "teaching.html#summer-semester-2023", "title": "ECLIPSE Lab", + "section": "Summer Semester 2023", + "text": "Summer Semester 2023\n\n\n\n\n Materials & Structure\n \n 🗓️ Check Studon for schedule\n \n Studon\n\n\n\n\n Data Science for Electron Microscopy\n \n 🗓️ Check Studon for schedule\n \n Website\n\n\n\n\n Machine Learning for Microscopy\n \n 🗓️ Check Studon for schedule\n \n Studon" + }, + { + "objectID": "values.html", + "href": "values.html", + "title": "Lab Values", "section": "", - "text": "Home\n Join the Lab" + "text": "Home\n Lab Values" }, { - "objectID": "opportunities.html#join-the-eclipse-lab", - "href": "opportunities.html#join-the-eclipse-lab", - "title": "ECLIPSE Lab", - "section": "Join the ECLIPSE Lab", - "text": "Join the ECLIPSE Lab\nWe welcome motivated students and researchers who want to work on computational imaging, inverse problems, and AI-enabled materials characterization.\nBefore applying, you may also want to read about how we work as a group — the kind of scientific culture we try to build matters to us.\n\n\n\n\n\n\nTipFast track\n\n\n\nIf this sounds like your research direction, apply now.\nApply to join the lab" + "objectID": "values.html#how-we-work", + "href": "values.html#how-we-work", + "title": "Lab Values", + "section": "How we work", + "text": "How we work\nAt ECLIPSE Lab, we want to build excellent science and an environment in which people can do their best work over the long term. Research is demanding; our goal is to make it intellectually ambitious, collaborative, and sustainable.\nWe do not think of lab culture as separate from scientific quality. Clear communication, mutual respect, and intellectual generosity are part of how strong research actually gets done." }, { - "objectID": "opportunities.html#who-should-apply", - "href": "opportunities.html#who-should-apply", - "title": "ECLIPSE Lab", - "section": "Who should apply?", - "text": "Who should apply?\nYou are a strong fit if you have some of the following:\n\nBackground in materials science, physics, electrical engineering, computer science, or related fields\nExperience in one or more of:\n\nScientific programming (Python/Julia/Matlab/C++)\nOptimization, inverse problems, computational imaging, or signal processing\nMachine learning for scientific data\nElectron microscopy or diffraction data analysis\n\nInterest in rigorous, interdisciplinary research with real experimental relevance" + "objectID": "values.html#we-are-collaborative", + "href": "values.html#we-are-collaborative", + "title": "Lab Values", + "section": "1. We are collaborative", + "text": "1. We are collaborative\nThe best science is rarely produced in isolation. We want the lab to be a place where people actively help each other think, troubleshoot, and grow.\nThat means:\n\nsharing ideas early rather than hiding unfinished work\nhelping each other debug code, experiments, and arguments\ntreating colleagues as collaborators, not competitors\ngiving credit generously and accurately\n\nWe value individual initiative, but we want success to feel collective." }, { - "objectID": "opportunities.html#open-pathways", - "href": "opportunities.html#open-pathways", - "title": "ECLIPSE Lab", - "section": "Open pathways", - "text": "Open pathways\n\nUndergraduate students\nThe lab regularly hosts undergraduate students (primarily from Materials Science, and occasionally related departments) for thesis projects and research assistant roles.\n\n\nProspective graduate students\nThe FAU Materials Science Department grants doctoral degrees in Materials Science and Engineering. Doctoral degrees in Physics can be arranged via joint supervision.\nDr. Pelz advises graduate students in the Materials Science Department, especially in:\n\ncomputational imaging\ninverse problems\ncomputational methods in materials characterization\n\n\n\nProspective postdocs and staff\nPostdoctoral fellowships and staff positions are opened as funding permits. Please also monitor the News page for current calls.\nWe also encourage and actively support applications for external funding, including the Marie Skłodowska-Curie Postdoctoral Fellowships and the Alexander von Humboldt Research Fellowship." + "objectID": "values.html#we-communicate-clearly-and-respectfully", + "href": "values.html#we-communicate-clearly-and-respectfully", + "title": "Lab Values", + "section": "2. We communicate clearly and respectfully", + "text": "2. We communicate clearly and respectfully\nGood research depends on good communication — from everyday conversations in the office to group meetings, talks, manuscripts, and outreach.\nWe want lab members to:\n\nspeak up when they have questions, ideas, or concerns\nlisten seriously to others\ngive honest but constructive feedback\nwrite and present with clarity rather than unnecessary complexity\n\nA strong lab is one where people feel heard and where disagreement improves the work instead of becoming personal." }, { - "objectID": "opportunities.html#how-to-apply-internationally", - "href": "opportunities.html#how-to-apply-internationally", - "title": "ECLIPSE Lab", - "section": "How to Apply Internationally", - "text": "How to Apply Internationally\nQ1: Can I apply if I am currently outside Germany?\nYes. We welcome applications from international candidates at all levels.\nQ2: Which language is used in the lab?\nDay-to-day research communication is typically in English.\nQ3: What should international applicants include in addition to the standard application?\nPlease include your expected availability/start date, current location, and visa status (if known) together with the application package.\nQ4: Are there funding routes for international postdocs?\nYes. We actively support applications to external fellowships, especially the Marie Skłodowska-Curie Postdoctoral Fellowships and the Alexander von Humboldt Research Fellowship.\nQ5: Will the lab support proposal preparation?\nYes. For strong-fit candidates, we support proposal framing, scope alignment, and supervision planning.\nQ6: Is prior electron microscopy experience mandatory?\nNot always. Strong foundations in math, physics, computation, or inverse problems can also be an excellent fit.\nQ7: What timeline should I expect if I apply from abroad?\nInitial feedback is usually within 1–3 weeks, but final timelines can depend on fellowship, enrollment, and visa processes.\nQ8: Who should I contact if I am unsure about fit before applying?\nUse the contact page with a short summary of your background and interests, and we can advise on fit before full application." + "objectID": "values.html#we-value-diversity-of-background-and-thought", + "href": "values.html#we-value-diversity-of-background-and-thought", + "title": "Lab Values", + "section": "3. We value diversity of background and thought", + "text": "3. We value diversity of background and thought\nWe believe that excellent science benefits from different perspectives, training paths, and life experiences. A diverse group is not only socially better — it is also intellectually stronger.\nWe therefore aim to maintain a welcoming environment for people of different:\n\nnational and cultural backgrounds\ngender identities and sexual orientations\ndisciplinary paths and research styles\nphysical abilities and personal circumstances\n\nWe expect all members of the lab to contribute to an atmosphere of respect, fairness, and professionalism." }, { - "objectID": "opportunities.html#application", - "href": "opportunities.html#application", - "title": "ECLIPSE Lab", - "section": "Application", - "text": "Application\nPlease send one concise application email with the following:\n\nCV (max 2 pages preferred)\nTranscript(s) and degree status\nShort motivation statement (5–10 sentences):\n\nyour research interests\nwhy ECLIPSE Lab\nwhat you want to work on\n\nOptional supporting material:\n\nGitHub/portfolio\npreprints/publications\ncode or project samples\n\n\n\nSelection timeline\n\nAcknowledgement: within ~1 week\nInitial evaluation: 1–3 weeks\nInterview / technical discussion (if shortlisted): typically within 2–5 weeks\nFinal decision: timing depends on position type and funding cycle" + "objectID": "values.html#we-aim-high-but-sustainably", + "href": "values.html#we-aim-high-but-sustainably", + "title": "Lab Values", + "section": "4. We aim high, but sustainably", + "text": "4. We aim high, but sustainably\nWe care about ambitious research problems: difficult measurements, hard inverse problems, and methods that can genuinely move microscopy forward. That work requires persistence and seriousness.\nBut sustained excellence does not come from chaos, burnout, or constant urgency. We want people to do focused, high-quality work with room for rest, family life, and long-term development.\nWe support a version of academic life that is compatible with being a whole person." }, { - "objectID": "opportunities.html#contact", - "href": "opportunities.html#contact", + "objectID": "values.html#we-want-science-to-be-meaningful-and-enjoyable", + "href": "values.html#we-want-science-to-be-meaningful-and-enjoyable", + "title": "Lab Values", + "section": "5. We want science to be meaningful and enjoyable", + "text": "5. We want science to be meaningful and enjoyable\nScience is ultimately driven by curiosity. We are here because discovering how nature works — and building tools that let others see more clearly — is exciting.\nWe want the lab to be a place where people can:\n\ntake ideas seriously without taking themselves too seriously\nenjoy learning new things\ncelebrate progress together\nstay connected to the broader purpose of the work\n\nRigorous science and genuine enthusiasm should go together." + }, + { + "objectID": "values.html#what-this-means-for-joining-the-lab", + "href": "values.html#what-this-means-for-joining-the-lab", + "title": "Lab Values", + "section": "What this means for joining the lab", + "text": "What this means for joining the lab\nIf you are considering applying, we hope you will see the lab not only as a place to publish strong work, but also as a place to develop as a scientist, colleague, and independent thinker.\nIf this sounds like the kind of environment in which you would thrive, we would be glad to hear from you.\nExplore opportunities Contact the lab" + }, + { + "objectID": "resources.html", + "href": "resources.html", + "title": "Resources", + "section": "", + "text": "Home\n Resources" + }, + { + "objectID": "resources.html#software-projects", + "href": "resources.html#software-projects", + "title": "Resources", + "section": "Software & Projects", + "text": "Software & Projects\nThe lab releases code, teaching notebooks, and reproducible project material through the ECLIPSE Lab GitHub organization.\n\n\nMSPT_code\nCode for multi-slice electron ptychographic tomography in three-dimensional phase-contrast microscopy beyond conventional depth-of-focus limits.\nPython ptychography tomography\n\n\nEnd2EndPtychoTomo_code\nReproducible code for end-to-end ptychographic electron tomography and near-isotropic sub-angstrom 3D phase-contrast imaging.\nPython 4D-STEM reconstruction\n\n\nPtychographicElectronTomography2023\nProject code and supporting material for solving complex nanostructures with ptychographic atomic electron tomography.\nelectron tomography atomic structure\n\n\nmarimo\nInteractive marimo notebooks and small apps from the group for computational microscopy workflows, demonstrations, and teaching.\nnotebooks interactive\n\n\nMore repositories are available at github.com/ECLIPSE-Lab.\nFeatured project pages\n· End-to-End Ptychographic Electron Tomography — near-isotropic sub-Ångström (0.82 Å) 3D phase-contrast imaging at low dose; includes code, paper, video teaser, and an interactive slice viewer · Multi-slice Ptychographic Tomography (MSPT) — 3D phase-contrast microscopy beyond the depth-of-focus limit (2 Å axial / 0.7 Å transverse resolution); includes code and paper" + }, + { + "objectID": "resources.html#presentations-teaching", + "href": "resources.html#presentations-teaching", + "title": "Resources", + "section": "Presentations & Teaching", + "text": "Presentations & Teaching\n\n\nLecture slides & course materials\nSlides, decks, and public course presentations from the ECLIPSE Lab teaching programme.\n\n\nData Science for Electron Microscopy\nLecture website and notebooks for data-driven electron microscopy, including practical computational microscopy material.\n\n\nMachine Learning for Characterization and Processing\nCourse material on machine learning methods for experimental materials characterization and processing data." + }, + { + "objectID": "resources.html#datasets", + "href": "resources.html#datasets", + "title": "Resources", + "section": "Datasets", + "text": "Datasets\nPublic dataset releases are being prepared alongside reproducible code packages.\n\n\nEMDatasets\nRepository for electron microscopy datasets and dataset utilities from the lab.\nreleased repository\n\n\nPtychographic tomography benchmark data\nBenchmark datasets connected to ptychographic atomic electron tomography publications, intended for reproducibility and method comparison.\nplanned release\n\n\nHyperScaleEM scale-bridging datasets\nLarge-volume 4D-STEM and hyperspectral electron tomography datasets generated through the HyperScaleEM project.\ncoming soon" + }, + { + "objectID": "index.html", + "href": "index.html", "title": "ECLIPSE Lab", - "section": "Contact", - "text": "Contact\nFor applications and position-related inquiries:\n\nContact Dr. Pelz\nOr email with subject line: Application – [Your Name] – [Level: UG/PhD/Postdoc]" + "section": "", + "text": "Welcome to the \n\n\nWe build computational imaging methods that push electron microscopes beyond their textbook limits — from sub-Ångstrom 3D reconstructions to autonomous scanning workflows.\n\n\n\n\nJoin the Lab\nProspective students, postdocs, and researchers — find open positions, funding routes, and application guidance.\nSee opportunities\n\n\n\nOur Research\nFrom inverse problems to autonomous microscopy — computational methods that make electron & X-ray imaging faster, more sensitive, and more informative.\nExplore by problem\n\n\n\nWhy It Matters Now\nBetter algorithms + automation are unlocking new capabilities in electron microscopes — at higher speed, lower dose, and larger scale than ever before.\nResearch directions\n\n\n\n\nPublication Highlights\n\n\n\n\n \n \n \n \n Gap-Free Information Transfer in 4D-STEM via Fusion of Complementary Scattering Channels\n (Adv Sci 2026)\n \n \n \n \n \n \n \n \n New Resolution Record in 3D Phase-Contrast Imaging\n (Phys Scripta 2024)\n \n \n \n \n \n \n \n \n \n \n Solving Complex Nanostructures With Ptychographic Atomic Electron Tomography\n (Nat Comm 2023)\n \n \n \n \n \n \n \n \n\n \n \n Simultaneous Successive Twinning Captured by Atomic Electron Tomography (ACS Nano 2021)\n \n \n \n \n \n \n \n \n \n Imaging the electron charge density in monolayer MoS2 at the Angstrom scale (Nat Comm 2023)\n \n \n \n\n \n \n \n \n \n \n\n\n\n\nWe are an interdisciplinary research group based within the Department of Materials Science at the Friedrich-Alexander University of Erlangen-Nürnberg. We have expertise in condensed matter physics, deep learning, large-scale optimization, signal and image processing, and experimental design for advanced X-ray and electron microscopy experiments.\nWe are part of the Institute of Micro- and Nanostructure Research and the Center for Nanoanalysis and Electron Microscopy and part of the Competence Unit Engineering of Advanced Materials.\n\n\nHow can we help you today?\n\n\n\n\nProspective students & researchers\nLearn about open positions, projects, and how to join the lab.\n\nMSc and PhD theses\nPostdoctoral positions\nShort-term research projects\n\nSee open opportunities\n\n\n\nCollaborators & facilities\nSee our research directions and how we work with partners.\n\nAdvanced electron and X-ray microscopy\nMethod development and software\nAccess to instrumentation and expertise\n\nSee research themes\n\n\n\nWhat’s new?\nTalks, awards, and other recent lab news.\n\nRecent talks and workshops\nGrants, awards, and recognitions\nNew people and projects\n\nRead lab news\n\n\n\n\nOur Research in Numbers\n\n\n\n 55Publications\n 1,213Citations\n 16h-index\n 17in world’s top 10%\n 2in world’s top 1%\n 91%Open access\n Source: OpenAlex · updated 2026-09-21" }, { "objectID": "research-by-problem.html", @@ -1120,368 +1211,256 @@ "text": "Collaboration\nIf your project matches one of the problems above, please see Opportunities or Contact." }, { - "objectID": "index.html", - "href": "index.html", + "objectID": "opportunities.html", + "href": "opportunities.html", "title": "ECLIPSE Lab", "section": "", - "text": "Welcome to the \n\n\nWe build computational imaging methods that push electron microscopes beyond their textbook limits — from sub-Ångstrom 3D reconstructions to autonomous scanning workflows.\n\n\n\n\nJoin the Lab\nProspective students, postdocs, and researchers — find open positions, funding routes, and application guidance.\nSee opportunities\n\n\n\nOur Research\nFrom inverse problems to autonomous microscopy — computational methods that make electron & X-ray imaging faster, more sensitive, and more informative.\nExplore by problem\n\n\n\nWhy It Matters Now\nBetter algorithms + automation are unlocking new capabilities in electron microscopes — at higher speed, lower dose, and larger scale than ever before.\nResearch directions\n\n\n\n\nPublication Highlights\n\n\n\n\n \n \n \n \n Gap-Free Information Transfer in 4D-STEM via Fusion of Complementary Scattering Channels\n (Adv Sci 2026)\n \n \n \n \n \n \n \n \n New Resolution Record in 3D Phase-Contrast Imaging\n (Phys Scripta 2024)\n \n \n \n \n \n \n \n \n \n \n Solving Complex Nanostructures With Ptychographic Atomic Electron Tomography\n (Nat Comm 2023)\n \n \n \n \n \n \n \n \n\n \n \n Simultaneous Successive Twinning Captured by Atomic Electron Tomography (ACS Nano 2021)\n \n \n \n \n \n \n \n \n \n Imaging the electron charge density in monolayer MoS2 at the Angstrom scale (Nat Comm 2023)\n \n \n \n\n \n \n \n \n \n \n\n\n\n\nWe are an interdisciplinary research group based within the Department of Materials Science at the Friedrich-Alexander University of Erlangen-Nürnberg. We have expertise in condensed matter physics, deep learning, large-scale optimization, signal and image processing, and experimental design for advanced X-ray and electron microscopy experiments.\nWe are part of the Institute of Micro- and Nanostructure Research and the Center for Nanoanalysis and Electron Microscopy and part of the Competence Unit Engineering of Advanced Materials.\n\n\nHow can we help you today?\n\n\n\n\nProspective students & researchers\nLearn about open positions, projects, and how to join the lab.\n\nMSc and PhD theses\nPostdoctoral positions\nShort-term research projects\n\nSee open opportunities\n\n\n\nCollaborators & facilities\nSee our research directions and how we work with partners.\n\nAdvanced electron and X-ray microscopy\nMethod development and software\nAccess to instrumentation and expertise\n\nSee research themes\n\n\n\nWhat’s new?\nTalks, awards, and other recent lab news.\n\nRecent talks and workshops\nGrants, awards, and recognitions\nNew people and projects\n\nRead lab news\n\n\n\n\nOur Research in Numbers\n\n\n\n 50Publications\n 1,192Citations\n 16h-index\n 16in world’s top 10%\n 2in world’s top 1%\n 94%Open access\n Source: OpenAlex · updated 2026-09-05" - }, - { - "objectID": "resources.html", - "href": "resources.html", - "title": "Resources", - "section": "", - "text": "Home\n Resources" - }, - { - "objectID": "resources.html#software-projects", - "href": "resources.html#software-projects", - "title": "Resources", - "section": "Software & Projects", - "text": "Software & Projects\nThe lab releases code, teaching notebooks, and reproducible project material through the ECLIPSE Lab GitHub organization.\n\n\nMSPT_code\nCode for multi-slice electron ptychographic tomography in three-dimensional phase-contrast microscopy beyond conventional depth-of-focus limits.\nPython ptychography tomography\n\n\nEnd2EndPtychoTomo_code\nReproducible code for end-to-end ptychographic electron tomography and near-isotropic sub-angstrom 3D phase-contrast imaging.\nPython 4D-STEM reconstruction\n\n\nPtychographicElectronTomography2023\nProject code and supporting material for solving complex nanostructures with ptychographic atomic electron tomography.\nelectron tomography atomic structure\n\n\nmarimo\nInteractive marimo notebooks and small apps from the group for computational microscopy workflows, demonstrations, and teaching.\nnotebooks interactive\n\n\nMore repositories are available at github.com/ECLIPSE-Lab.\nFeatured project pages\n· End-to-End Ptychographic Electron Tomography — near-isotropic sub-Ångström (0.82 Å) 3D phase-contrast imaging at low dose; includes code, paper, video teaser, and an interactive slice viewer · Multi-slice Ptychographic Tomography (MSPT) — 3D phase-contrast microscopy beyond the depth-of-focus limit (2 Å axial / 0.7 Å transverse resolution); includes code and paper" - }, - { - "objectID": "resources.html#presentations-teaching", - "href": "resources.html#presentations-teaching", - "title": "Resources", - "section": "Presentations & Teaching", - "text": "Presentations & Teaching\n\n\nLecture slides & course materials\nSlides, decks, and public course presentations from the ECLIPSE Lab teaching programme.\n\n\nData Science for Electron Microscopy\nLecture website and notebooks for data-driven electron microscopy, including practical computational microscopy material.\n\n\nMachine Learning for Characterization and Processing\nCourse material on machine learning methods for experimental materials characterization and processing data." - }, - { - "objectID": "resources.html#datasets", - "href": "resources.html#datasets", - "title": "Resources", - "section": "Datasets", - "text": "Datasets\nPublic dataset releases are being prepared alongside reproducible code packages.\n\n\nEMDatasets\nRepository for electron microscopy datasets and dataset utilities from the lab.\nreleased repository\n\n\nPtychographic tomography benchmark data\nBenchmark datasets connected to ptychographic atomic electron tomography publications, intended for reproducibility and method comparison.\nplanned release\n\n\nHyperScaleEM scale-bridging datasets\nLarge-volume 4D-STEM and hyperspectral electron tomography datasets generated through the HyperScaleEM project.\ncoming soon" - }, - { - "objectID": "values.html", - "href": "values.html", - "title": "Lab Values", - "section": "", - "text": "Home\n Lab Values" - }, - { - "objectID": "values.html#how-we-work", - "href": "values.html#how-we-work", - "title": "Lab Values", - "section": "How we work", - "text": "How we work\nAt ECLIPSE Lab, we want to build excellent science and an environment in which people can do their best work over the long term. Research is demanding; our goal is to make it intellectually ambitious, collaborative, and sustainable.\nWe do not think of lab culture as separate from scientific quality. Clear communication, mutual respect, and intellectual generosity are part of how strong research actually gets done." - }, - { - "objectID": "values.html#we-are-collaborative", - "href": "values.html#we-are-collaborative", - "title": "Lab Values", - "section": "1. We are collaborative", - "text": "1. We are collaborative\nThe best science is rarely produced in isolation. We want the lab to be a place where people actively help each other think, troubleshoot, and grow.\nThat means:\n\nsharing ideas early rather than hiding unfinished work\nhelping each other debug code, experiments, and arguments\ntreating colleagues as collaborators, not competitors\ngiving credit generously and accurately\n\nWe value individual initiative, but we want success to feel collective." - }, - { - "objectID": "values.html#we-communicate-clearly-and-respectfully", - "href": "values.html#we-communicate-clearly-and-respectfully", - "title": "Lab Values", - "section": "2. We communicate clearly and respectfully", - "text": "2. We communicate clearly and respectfully\nGood research depends on good communication — from everyday conversations in the office to group meetings, talks, manuscripts, and outreach.\nWe want lab members to:\n\nspeak up when they have questions, ideas, or concerns\nlisten seriously to others\ngive honest but constructive feedback\nwrite and present with clarity rather than unnecessary complexity\n\nA strong lab is one where people feel heard and where disagreement improves the work instead of becoming personal." - }, - { - "objectID": "values.html#we-value-diversity-of-background-and-thought", - "href": "values.html#we-value-diversity-of-background-and-thought", - "title": "Lab Values", - "section": "3. We value diversity of background and thought", - "text": "3. We value diversity of background and thought\nWe believe that excellent science benefits from different perspectives, training paths, and life experiences. A diverse group is not only socially better — it is also intellectually stronger.\nWe therefore aim to maintain a welcoming environment for people of different:\n\nnational and cultural backgrounds\ngender identities and sexual orientations\ndisciplinary paths and research styles\nphysical abilities and personal circumstances\n\nWe expect all members of the lab to contribute to an atmosphere of respect, fairness, and professionalism." - }, - { - "objectID": "values.html#we-aim-high-but-sustainably", - "href": "values.html#we-aim-high-but-sustainably", - "title": "Lab Values", - "section": "4. We aim high, but sustainably", - "text": "4. We aim high, but sustainably\nWe care about ambitious research problems: difficult measurements, hard inverse problems, and methods that can genuinely move microscopy forward. That work requires persistence and seriousness.\nBut sustained excellence does not come from chaos, burnout, or constant urgency. We want people to do focused, high-quality work with room for rest, family life, and long-term development.\nWe support a version of academic life that is compatible with being a whole person." - }, - { - "objectID": "values.html#we-want-science-to-be-meaningful-and-enjoyable", - "href": "values.html#we-want-science-to-be-meaningful-and-enjoyable", - "title": "Lab Values", - "section": "5. We want science to be meaningful and enjoyable", - "text": "5. We want science to be meaningful and enjoyable\nScience is ultimately driven by curiosity. We are here because discovering how nature works — and building tools that let others see more clearly — is exciting.\nWe want the lab to be a place where people can:\n\ntake ideas seriously without taking themselves too seriously\nenjoy learning new things\ncelebrate progress together\nstay connected to the broader purpose of the work\n\nRigorous science and genuine enthusiasm should go together." - }, - { - "objectID": "values.html#what-this-means-for-joining-the-lab", - "href": "values.html#what-this-means-for-joining-the-lab", - "title": "Lab Values", - "section": "What this means for joining the lab", - "text": "What this means for joining the lab\nIf you are considering applying, we hope you will see the lab not only as a place to publish strong work, but also as a place to develop as a scientist, colleague, and independent thinker.\nIf this sounds like the kind of environment in which you would thrive, we would be glad to hear from you.\nExplore opportunities Contact the lab" + "text": "Home\n Join the Lab" }, { - "objectID": "teaching.html", - "href": "teaching.html", + "objectID": "opportunities.html#join-the-eclipse-lab", + "href": "opportunities.html#join-the-eclipse-lab", "title": "ECLIPSE Lab", - "section": "", - "text": "The ECLIPSE Lab teaches undergraduate and graduate courses in materials science and applied data science at FAU Erlangen-Nürnberg. All courses are open to students in Materials Science and related programmes — see individual course cards below for enrollment links and lecture details." + "section": "Join the ECLIPSE Lab", + "text": "Join the ECLIPSE Lab\nWe welcome motivated students and researchers who want to work on computational imaging, inverse problems, and AI-enabled materials characterization.\nBefore applying, you may also want to read about how we work as a group — the kind of scientific culture we try to build matters to us.\n\n\n\n\n\n\nTipFast track\n\n\n\nIf this sounds like your research direction, apply now.\nApply to join the lab" }, { - "objectID": "teaching.html#summer-semester-2026", - "href": "teaching.html#summer-semester-2026", + "objectID": "opportunities.html#who-should-apply", + "href": "opportunities.html#who-should-apply", "title": "ECLIPSE Lab", - "section": "Summer Semester 2026", - "text": "Summer Semester 2026\n\n\n\n\n Materialgenomik\n \n 🗓️ Tue 16:15h - 17:45h\n 📍 0.68 WW building\n \n Website\n\n\n\n\n Machine Learning for Processing & Characterization\n \n 🗓️ Tue 14:15h - 15:45h\n 📍 0.68 WW building\n \n \n Website\n\n\n\n\n Mathematical Foundations of AI/ML\n \n 🗓️ Mon 10:15h - 11:45h\n 📍 Rm 01.156 IZNF\n \n \n Website" + "section": "Who should apply?", + "text": "Who should apply?\nYou are a strong fit if you have some of the following:\n\nBackground in materials science, physics, electrical engineering, computer science, or related fields\nExperience in one or more of:\n\nScientific programming (Python/Julia/Matlab/C++)\nOptimization, inverse problems, computational imaging, or signal processing\nMachine learning for scientific data\nElectron microscopy or diffraction data analysis\n\nInterest in rigorous, interdisciplinary research with real experimental relevance" }, { - "objectID": "teaching.html#winter-semester-20252026", - "href": "teaching.html#winter-semester-20252026", + "objectID": "opportunities.html#open-pathways", + "href": "opportunities.html#open-pathways", "title": "ECLIPSE Lab", - "section": "Winter Semester 2025/2026", - "text": "Winter Semester 2025/2026\n\n\n\n\n Materials & Structure (MAP)\n \n 🗓️ Tue 12:00h - 13:30h \n 📍 H14 Cauerstr. 3\n \n Studon\n\n\n\n\n Basics of Microscopy\n \n 🗓️ Wed 12:00h - 13:30h \n 📍 H15 Cauerstr. 3\n \n Studon\n\n\n\n\n Mathematical Foundations of AI/ML\n \n 🗓️ Mon 10:15h - 11:45h\n 📍 Rm 01.156 IZNF\n \n Studon" + "section": "Open pathways", + "text": "Open pathways\n\nUndergraduate students\nThe lab regularly hosts undergraduate students (primarily from Materials Science, and occasionally related departments) for thesis projects and research assistant roles.\n\n\nProspective graduate students\nThe FAU Materials Science Department grants doctoral degrees in Materials Science and Engineering. Doctoral degrees in Physics can be arranged via joint supervision.\nDr. Pelz advises graduate students in the Materials Science Department, especially in:\n\ncomputational imaging\ninverse problems\ncomputational methods in materials characterization\n\n\n\nProspective postdocs and staff\nPostdoctoral fellowships and staff positions are opened as funding permits. Please also monitor the News page for current calls.\nWe also encourage and actively support applications for external funding, including the Marie Skłodowska-Curie Postdoctoral Fellowships and the Alexander von Humboldt Research Fellowship." }, { - "objectID": "teaching.html#summer-semester-2025", - "href": "teaching.html#summer-semester-2025", + "objectID": "opportunities.html#how-to-apply-internationally", + "href": "opportunities.html#how-to-apply-internationally", "title": "ECLIPSE Lab", - "section": "Summer Semester 2025", - "text": "Summer Semester 2025\n\n\n\n\n Materials & Structure (Clean Energy)\n \n 🗓️ Tue 10:15h - 11:45h\n 📍 0.68 WW building\n \n Studon\n\n\n\n\n Data Science for Electron Microscopy\n \n 🗓️ Tue 16:15h - 17:45h\n 📍 IZNF Rm 01.160\n \n Website\n\n\n\n\n Machine Learning for Microscopy\n \n 🗓️ Thu 16:15h - 17:45h\n 📍 IZNF Rm 01.160\n \n Website\n\n\n\n\n Materials & Structure Seminar\n \n 🗓️ Thu 16:15h - 17:45h\n 📍 0.68 WW building\n \n Website" + "section": "How to Apply Internationally", + "text": "How to Apply Internationally\nQ1: Can I apply if I am currently outside Germany?\nYes. We welcome applications from international candidates at all levels.\nQ2: Which language is used in the lab?\nDay-to-day research communication is typically in English.\nQ3: What should international applicants include in addition to the standard application?\nPlease include your expected availability/start date, current location, and visa status (if known) together with the application package.\nQ4: Are there funding routes for international postdocs?\nYes. We actively support applications to external fellowships, especially the Marie Skłodowska-Curie Postdoctoral Fellowships and the Alexander von Humboldt Research Fellowship.\nQ5: Will the lab support proposal preparation?\nYes. For strong-fit candidates, we support proposal framing, scope alignment, and supervision planning.\nQ6: Is prior electron microscopy experience mandatory?\nNot always. Strong foundations in math, physics, computation, or inverse problems can also be an excellent fit.\nQ7: What timeline should I expect if I apply from abroad?\nInitial feedback is usually within 1–3 weeks, but final timelines can depend on fellowship, enrollment, and visa processes.\nQ8: Who should I contact if I am unsure about fit before applying?\nUse the contact page with a short summary of your background and interests, and we can advise on fit before full application." }, { - "objectID": "teaching.html#winter-semester-2024", - "href": "teaching.html#winter-semester-2024", + "objectID": "opportunities.html#application", + "href": "opportunities.html#application", "title": "ECLIPSE Lab", - "section": "Winter Semester 2024", - "text": "Winter Semester 2024\n\n\n\n\n Materials & Structure (MAP)\n \n 🗓️ Fri 10:15h – 11:45h\n 📍 Seminar Room 0.68 WW building\n \n Studon\n\n\n\n\n Data Science for Electron Microscopy\n \n 🗓️ Fri 8:30h – 10:00h\n 📍 IZNF Rm 01.160\n \n Website\n\n\n\n\n Machine Learning for Microscopy\n \n 🗓️ Wed 8:30h – 10:00h\n 📍 IZNF Rm 01.140\n \n Studon" + "section": "Application", + "text": "Application\nPlease send one concise application email with the following:\n\nCV (max 2 pages preferred)\nTranscript(s) and degree status\nShort motivation statement (5–10 sentences):\n\nyour research interests\nwhy ECLIPSE Lab\nwhat you want to work on\n\nOptional supporting material:\n\nGitHub/portfolio\npreprints/publications\ncode or project samples\n\n\n\nSelection timeline\n\nAcknowledgement: within ~1 week\nInitial evaluation: 1–3 weeks\nInterview / technical discussion (if shortlisted): typically within 2–5 weeks\nFinal decision: timing depends on position type and funding cycle" }, { - "objectID": "teaching.html#summer-semester-2024", - "href": "teaching.html#summer-semester-2024", + "objectID": "opportunities.html#contact", + "href": "opportunities.html#contact", "title": "ECLIPSE Lab", - "section": "Summer Semester 2024", - "text": "Summer Semester 2024\n\n\n\n\n Materials & Structure (BSc Clean Energy)\n \n 🗓️ Thu 10:15h – 11:45h\n 📍 FAU\n \n Studon\n\n\n\n\n Data Science for Electron Microscopy\n \n 🗓️ Wed 10:15h – 11:45h\n 📍 IZNF Rm 01.160\n \n Studon\n\n\n\n\n Machine Learning for Microscopy\n \n 🗓️ Wed 8:30h – 10:00h\n 📍 IZNF Rm 01.160\n \n Studon" + "section": "Contact", + "text": "Contact\nFor applications and position-related inquiries:\n\nContact Dr. Pelz\nOr email with subject line: Application – [Your Name] – [Level: UG/PhD/Postdoc]" }, { - "objectID": "teaching.html#winter-semester-2023", - "href": "teaching.html#winter-semester-2023", + "objectID": "people.html", + "href": "people.html", "title": "ECLIPSE Lab", - "section": "Winter Semester 2023", - "text": "Winter Semester 2023\n\n\n\n\n Materials & Structure\n \n 🗓️ Check Studon for schedule\n \n Studon\n\n\n\n\n Data Science for Electron Microscopy\n \n 🗓️ Tue 8:30h – 10:00h\n 📍 IZNF Rm 01.160\n \n Studon\n\n\n\n\n Machine Learning for Microscopy\n \n 🗓️ Thu 8:30h – 10:00h\n 📍 IZNF Rm 01.160\n \n Studon" + "section": "", + "text": "Home\n People" }, { - "objectID": "teaching.html#summer-semester-2023", - "href": "teaching.html#summer-semester-2023", + "objectID": "people.html#jump-to", + "href": "people.html#jump-to", "title": "ECLIPSE Lab", - "section": "Summer Semester 2023", - "text": "Summer Semester 2023\n\n\n\n\n Materials & Structure\n \n 🗓️ Check Studon for schedule\n \n Studon\n\n\n\n\n Data Science for Electron Microscopy\n \n 🗓️ Check Studon for schedule\n \n Website\n\n\n\n\n Machine Learning for Microscopy\n \n 🗓️ Check Studon for schedule\n \n Studon" + "section": "Jump to", + "text": "Jump to\nPrincipal Investigator · Postdocs · PhD Students · MSc Students · Research Assistants · BSc Students · Admin Assistants · Honorary Members · Alumni" }, { - "objectID": "research.html", - "href": "research.html", + "objectID": "people.html#principal-investigator", + "href": "people.html#principal-investigator", "title": "ECLIPSE Lab", - "section": "", - "text": "Home\n Research" + "section": "Principal Investigator", + "text": "Principal Investigator\n\n\n\n \n \n \n Philipp Pelz\n \n Principal Investigator\n \n \n \n \n \n Principal Investigator\n Since Fall 2022\n \n \n \n Computational imaging & microscopy · Autonomous systems · Large-scale inverse problems · Electron & X-ray microscopy\n \n \n \n \n website\n \n scholar\n \n Web of Science\n \n ORCID\n \n Scopus ID\n \n github\n \n twitter\n \n \n \n View profile →\n \n \n\n\nNo matching items" }, { - "objectID": "research.html#research", - "href": "research.html#research", + "objectID": "people.html#postdocs", + "href": "people.html#postdocs", "title": "ECLIPSE Lab", - "section": "Research", - "text": "Research\nPrefer a problem-first view? See Research by Problem.\n\n \n \n \n \n \n The complete 3D atomic structure of a complex nanomaterial — recovered from a 4D-STEM tomography dataset by ptychographic atomic electron tomography, where conventional methods fall short. Nat. Commun., 2023" + "section": "Postdocs", + "text": "Postdocs\n\n\n\n \n \n \n Shengbo You\n \n Postdoc\n \n \n \n \n \n Postdoc\n Since Oct 2023\n \n \n \n Computational imaging & microscopy · Tomography · Ptychography\n \n \n \n \n ORCID\n \n \n \n View profile →\n \n \n\n \n \n \n Sebastian Kruber\n \n Postdoc\n \n \n \n \n \n Postdoc\n Since April 2025\n \n \n \n 4D-STEM · Computational reconstruction · ML for EM\n \n \n \n \n scholar\n \n \n \n View profile →\n \n \n\n\nNo matching items" }, { - "objectID": "research.html#key-milestones", - "href": "research.html#key-milestones", + "objectID": "people.html#phd-students", + "href": "people.html#phd-students", "title": "ECLIPSE Lab", - "section": "Key Milestones", - "text": "Key Milestones\n\n\n\n 2023\n Nat. Commun.\n \n First atomic-resolution 3D volume from 4D-STEM tomography \n \n\n\n\n 2024\n Phys. Scripta\n \n Sub-Ångstrom end-to-end reconstruction - new 3D phase-contrast resolution record \n \n\n\n\n 2025\n arXiv:2512.19460\n \n Gap-free atomic contrast transfer via fusion of dark-field and bright-field signals." + "section": "PhD Students", + "text": "PhD Students\n\n\n\n \n \n \n Umah Chukwudi Williams\n \n Doctoral Researcher\n \n \n \n \n \n Doctoral Researcher\n Since Jul 2025\n \n \n \n Computational imaging & microscopy · Tomography · Ptychography\n \n \n View profile →\n \n \n\n \n \n \n Nikita Palatkin\n \n Doctoral Researcher\n \n \n \n \n \n Doctoral Researcher\n Since Nov 2024\n \n \n \n 4D-STEM · Ptychography · Physics-informed neural networks\n \n \n View profile →\n \n \n\n \n \n \n Sihan Shao\n \n Doctoral Researcher\n \n \n \n \n \n Doctoral Researcher\n Since 2025\n \n \n \n Computational imaging · Tomography · Ptychography\n \n \n \n \n Email\n \n GitHub\n \n LinkedIn\n \n \n \n View profile →\n \n \n\n\nNo matching items" }, { - "objectID": "research.html#capability-areas", - "href": "research.html#capability-areas", + "objectID": "people.html#msc-students", + "href": "people.html#msc-students", "title": "ECLIPSE Lab", - "section": "Capability areas", - "text": "Capability areas\n\nComputational imaging for difficult 3D measurements\nWhat we build\nWe develop 3D imaging methods based on 4D-STEM and related computational reconstruction pipelines for large-scale, dose-efficient, high-resolution measurements.\nWhy it matters\nMany important materials problems require 3D information at high resolution, but conventional workflows remain too slow, too dose-intensive, or too limited for weakly scattering structures.\nRepresentative results\n\n2023: first atomic-resolution 3D volume from 4D-STEM tomography\n2024: first atomic-resolution phase-contrast volume beyond the depth of focus limit · project page\n2024: first end-to-end reconstruction reaching sub-Angstrom resolution · project page\n\n\n \n \n \n \n \n A sub-Ångström 3D phase-contrast volume — a resolution record set by an end-to-end pipeline that recovers more structure per electron, opening low-dose 3D imaging of beam-sensitive materials. Phys. Scripta, 2024 · project page\n\nCollaboration angle We are interested in collaborations where new reconstruction methods can unlock 3D structure, chemistry, or sensitivity in experimentally challenging datasets.\n\n\nFast simulation and model-based electron microscopy\nWhat we build\nWe develop fast simulators and model-based workflows for electron microscopy that support method design, reconstruction, and quantitative interpretation.\nWhy it matters\nSimulation is essential for testing algorithms, understanding signal formation, and scaling new microscopy methods to realistic experiments.\nRepresentative result\n\n>100x faster simulations\n\nCollaboration angle\nThis is relevant for groups who need reliable forward models, synthetic benchmarks, or tighter coupling between experiment and computation.\n\n\nMulti-modal microscopy\nWhat we build\nWe are developing new approaches for multi-modal 3D imaging, down to the atomic scale.\nWhy it matters Combining complementary signals can reveal structure, chemistry, and function more effectively than single-mode imaging alone.\n\n \n Beyond atomic positions: the electron charge density of monolayer MoS₂ resolved at the Ångström scale — the kind of richer, multi-faceted information that fusing complementary signals can reveal. Nat. Commun., 2023\n\nCollaboration angle We welcome collaborations where multimodal data fusion or cross-signal interpretation is the limiting step.\n\n\nSelf-driving and automated microscopy\nWhat we build\nWe develop automation methods for electron microscopy, including end-to-end and self-driving workflows.\nWhy it matters\nAutomation reduces friction in advanced experiments, improves repeatability, and enables higher-throughput scientific discovery.\nRepresentative result\n\nAutomated end-to-end ptychographic tomography\n\nCollaboration angle\nThis is particularly relevant for partners who want more robust acquisition, scalable pipelines, or autonomous microscopy workflows." + "section": "MSc Students", + "text": "MSc Students\n\n\n\n \n \n \n Bardia Nasiri Sharaf\n \n MSc Student\n \n \n \n \n \n MSc Student\n Since 2026\n \n \n \n \n View profile →\n \n \n\n \n \n \n Mohsen Moazam\n \n MSc Student\n \n \n \n \n \n MSc Student\n Since 2026\n \n \n \n \n View profile →\n \n \n\n\nNo matching items" }, { - "objectID": "research.html#research-funding", - "href": "research.html#research-funding", + "objectID": "people.html#research-assistants", + "href": "people.html#research-assistants", "title": "ECLIPSE Lab", - "section": "Research Funding", - "text": "Research Funding\n\nCurrent Funding\n\n\n\n\nProject / Grant\nRole\nPeriod\n\n\n\n\n\nBacaTec FAU-Stanford Collaboration\nPelz (PI)\n01/2026 – 12/2027\n\n\n\nCorMic Graduate SchoolDFG Graduate School Correlative Materials Microscopy\nPelz (Co-PI)\n04/2026 – 03/2031\n\n\n\nHyperScaleEM: Revealing 3D Atomic Structure and Chemistry in Scale-Bridging Volumes via 5D Hyperspectral Electron TomographyERC Starting grant\nPelz (PI)\n02/2025 – 01/2030\n\n\n\n\n\nCompleted Funding\n\n\n\n\nProject / Grant\nRole\nPeriod\n\n\n\n\n\n*ScatterEM: Utilizing scattering to enhance throughput and sensitivity in electron microscopyEAM Starting grant\nPelz (PI)\n01/2023 – 12/2024\n\n\n\n* ScatterEM project page coming soon" + "section": "Research Assistants", + "text": "Research Assistants\n\n\n\n \n \n \n Huseyn Shahuseynov\n \n MSc Student\n \n \n \n \n \n MSc Student\n Since 2026\n \n \n \n \n View profile →\n \n \n\n \n \n \n Nadia Haddadnia\n \n MSc Student\n \n \n \n \n \n MSc Student\n Since Apr 2026\n \n \n \n Computational microscopy · Micro/nano characterization · Materials simulation\n \n \n \n \n Email\n \n \n \n View profile →\n \n \n\n\nNo matching items" }, { - "objectID": "research.html#research-methodology", - "href": "research.html#research-methodology", + "objectID": "people.html#honorary-members", + "href": "people.html#honorary-members", "title": "ECLIPSE Lab", - "section": "Research Methodology", - "text": "Research Methodology\nPhysics-informed reconstruction is at the core of everything we do. We incorporate prior physical knowledge — from scattering physics and diffraction theory to spectral response characteristics — directly into the inverse problem formulation. This means our image reconstruction does not treat the microscope as a black box, but as a well-characterised physical system with known error modes, noise characteristics, and signal transfer functions. Combining complementary signal channels — including annular dark-field, ptychography, EELS, and EDS — lets us recover information that no single modality can capture alone.\nModern machine learning tools are woven into our workflow at every stage. We use deep learning to accelerate expensive forward simulations, to robustify phase retrieval against experimental imperfections such as beam damage and sample drift, and to extract chemically meaningful features from high-dimensional 4D-STEM datasets. Importantly, we treat ML as a tool augmenting physics-based models rather than replacing them — our reconstructions remain interpretable and physically grounded.\nAutomation and reproducibility are foundational to our experimental practice. Our self-driving microscopy pipelines use closed-loop feedback to maximise information yield per acquisition, enabling high-throughput experiments without sacrificing resolution. All reconstruction pipelines, simulation codes, and experimental protocols are version-controlled and openly shared, ensuring that our results are reproducible and that our methods can be applied by the broader community." + "section": "Honorary Members", + "text": "Honorary Members\n\n\n\n \n \n \n Yan Mei\n \n Doctoral Researcher\n \n \n \n \n \n Doctoral Researcher\n Since 2026\n \n \n \n Doctoral researcher in the CorMic graduate school, co-supervised with Prof. Luca Ghiringhelli (KIT).\n \n \n View profile →\n \n \n\n\nNo matching items" }, { - "objectID": "news.html", - "href": "news.html", + "objectID": "people.html#bsc-students", + "href": "people.html#bsc-students", "title": "ECLIPSE Lab", - "section": "", - "text": "Home\n News" + "section": "BSc Students", + "text": "BSc Students\nCurrently no BSc students are listed." }, { - "objectID": "news.html#news-highlights", - "href": "news.html#news-highlights", + "objectID": "people.html#admin-assistants", + "href": "people.html#admin-assistants", "title": "ECLIPSE Lab", - "section": "News & Highlights", - "text": "News & Highlights\nThis page collects recent lab highlights across talks, awards, positions, people, and project milestones.\n\n\n\n\n\n\nJoin the ECLIPSE Lab. We are actively building the group across computational imaging, inverse problems, and AI-enabled materials characterization.\n\nExplore open opportunities\nLearn more about our research directions\nGet in touch via the contact page" + "section": "Administrative Assistants", + "text": "Administrative Assistants\n\n\n\n \n \n \n Birke Kohlheim\n \n Secretary\n \n \n \n \n \n Secretary\n \n \n \n \n \n View profile →\n \n \n\n \n \n \n Yesim Tosun\n \n Secretary\n \n \n \n \n \n Secretary\n \n \n \n \n \n \n \n Email\n \n \n \n View profile →\n \n \n\n\nNo matching items" }, { - "objectID": "news.html#highlights-by-topic", - "href": "news.html#highlights-by-topic", + "objectID": "people.html#alumni", + "href": "people.html#alumni", "title": "ECLIPSE Lab", - "section": "Highlights by topic", - "text": "Highlights by topic\n\n\n\nTalks & conferences\n\nInternational Microscopy Conference (IMC21)\nMaterials for Sustainable Development Conference (MATSUS26)\nDPG Spring meeting 2026\n\n\n\n\nPeople & positions\n\nOpen Postdoc: Multi-modal Sensor Fusion\nShengbo You joins the team\nRadin Rahimi joins the team\n\n\n\n\nGrants, projects & lab momentum\n\nStudy commission update\nCRC 1411 Symposium\nMore research stories and updates" + "section": "Alumni", + "text": "Alumni\n\n\n \n \n \n Order By\n Default\n \n Name\n \n \n Role\n \n \n Started\n \n \n Ended\n \n \n \n \n \n \n \n\n\n\n\n\n\nName\n\n\n\nRole\n\n\n\nStarted\n\n\n\nEnded\n\n\n\n\n\n\n\n\nAndrey Romanov\n\n\nPostdoc\n\n\nJuli 2023\n\n\nJune 2024\n\n\n\n\n\n\nPhilipp Herz\n\n\nDoctoral Researcher\n\n\nMar 2025\n\n\nSep 2025\n\n\n\n\n\n\nRadin Rahimi\n\n\nMaster Thesis Student\n\n\nSeptember 2023\n\n\n2026\n\n\n\n\n\n\nDasun Ranakawa\n\n\nMaster Thesis Student\n\n\nMay 2025\n\n\n2026\n\n\n\n\n\n\nGaurab Dhungana\n\n\nResearch Assistant\n\n\nJune 2023\n\n\nOct 2023\n\n\n\n\n\n\nNo matching items" }, { - "objectID": "news.html#recent-updates", - "href": "news.html#recent-updates", + "objectID": "publications.html", + "href": "publications.html", "title": "ECLIPSE Lab", - "section": "Recent updates", - "text": "Recent updates\nBelow is the reverse-chronological archive of recent news items." - }, - { - "objectID": "publications/articles/36_using_4d_stem_to_measure_the_nanoscale_structure_o.html", - "href": "publications/articles/36_using_4d_stem_to_measure_the_nanoscale_structure_o.html", - "title": "Using 4D-STEM to measure the nanoscale structure of materials in two and three dimensions", "section": "", - "text": "Using 4D-STEM to measure the nanoscale structure of materials in two and three dimensions C. Ophus, P. M. Pelz, H. A. Sternlict, B. H. Savitzky, A. Rakowski, A. Bruefach, S. Ribet, M. S. Scott Acta Crystallographica Section A Foundations and Advances 79, C251-C251" + "text": "Home\n Publications\n \n\n\n\n 55Publications\n 1,213Citations\n 16h-index\n 17in world’s top 10%\n 2in world’s top 1%\n 91%Open access\n Source: OpenAlex · updated 2026-09-21\n\n\n\n \n \n \n Order By\n Default\n \n Title\n \n \n Author\n \n \n Publication\n \n \n Year\n \n \n \n \n \n \n \n\n\n\n \n Gap‐Free Information Transfer in 4D‐STEM via Fusion of Complementary Scattering Channels\n S. You, G. Varnavides, S. Khavnekar, N. Palatkin, S. Shao, M. Wu, D. Stroppa, D. Chernikova, B. Zhu, R. Egoavil, S. Vespucci, D. Krishnan, X. Ye, F. K. M. Schur, E. Spiecker, P. Pelz\n Advanced Science\n (2026)\n\n \n \n \n Scattering\n \n Phase-contrast imaging\n \n Contrast transfer function\n \n Upsampling\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Transverse quantum-state characterization of programmable electron optics\n S. You, P. Rosi, E. Rotunno, A. Roncaglia, L. Belsito, A. H. Tavabi, R. E. Dunin-Borkowski, V. Grillo, P. M. Pelz\n arXiv (Cornell University)\n (2026)\n\n \n\n \n\n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Electron Ptychography in the Fresnel Diffraction Regime\n A. Maiden, P. Lu, S. You, F. Allars\n Microscopy and Microanalysis 31\n (2025)\n\n \n \n \n Ptychography\n \n Fresnel diffraction\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Identification of polytypism and their dislocations in bilayer MoS2 using correlative transmission electron microscopy and Raman spectroscopy\n X. Zhou, T. Dierke, M. Wu, S. You, K. Götz, T. Unruh, P. Pelz, J. Will, J. Maultzsch, E. Spiecker\n npj 2D Materials and Applications 9\n (2025)\n\n \n \n \n Raman spectroscopy\n \n Correlative\n \n Transmission electron microscopy\n \n Bilayer\n \n \n \n\n \n\n \n \n \n \n \n 2\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Kinetically Controlled Seed-Mediated Synthesis of Colloidal Copper Nanotetrahedra with Intricate Internal Structure\n S. Jeong, M. Wu, R. X. Skalla, B. Paranzino, A. Kichigin, B. Zhu, A. N. Butrum-Griffith, X. Zhan, Y. Zhong, C. Yan, P. Pelz, C. Ophus, S. Rechberger, Y. Wang, J. Chen, A. Yasuhara, Y. Aoyama, M. Kakefuda, K. A. Willets, E. Spiecker, X. Ye\n Journal of the American Chemical Society 147, 37622-37633\n (2025)\n\n \n \n \n Nanocrystal\n \n Nucleation\n \n Transmission electron microscopy\n \n Copper\n \n Surface plasmon resonance\n \n Monomer\n \n \n \n\n \n\n \n \n \n \n \n 6\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Multi-slice electron ptychographic tomography for three-dimensional phase-contrast microscopy beyond the depth of focus limits\n A. Romanov, M. G. Cho, M. C. Scott, P. Pelz\n Journal of Physics: Materials 8, 015005\n (2025)\n\n \n\n \n\n \n \n \n \n \n 8\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 2.5× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n Code\n \n \n \n \n Project Page\n \n \n \n\n \n Near-isotropic sub-Ångstrom 3d resolution phase contrast imaging achieved by end-to-end ptychographic electron tomography\n S. You, A. Romanov, P. M. Pelz\n Physica Scripta 100, 015404\n (2025)\n\n \n \n \n Tomography\n \n Isotropy\n \n Phase-contrast imaging\n \n Phase contrast microscopy\n \n Optics\n \n \n \n\n \n\n \n \n \n \n \n 11\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 4.2× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n Code\n \n \n \n \n Project Page\n \n \n \n\n \n Sub-Ångstrom 3D Resolution, Volume Imaging Beyond the Depth of Focus Limit, and Automated Tomography Using Electron Ptychography\n P. Pelz, S. You, M. Wu, N. Palatkin\n Microscopy and Microanalysis 31\n (2025)\n\n \n \n \n Ptychography\n \n Tomography\n \n Electron tomography\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Information Transfer Improvement by Parallax Correction and Ptychography Reconstruction Applied to Fast Large-Area 4D STEM Experiments\n D. G. Stroppa, S. Ribet, G. Varnavides, C. Ophus, P. Pelz\n Microscopy and Microanalysis 30\n (2024)\n\n \n \n \n Parallax\n \n Ptychography\n \n Optics\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Information Transfer Improvement by Parallax Correction and Ptychography Reconstruction Applied to Large-Area 4D STEM Experiments\n D. Stroppa, S. Ribet, G. Varnavides, C. Ophus, P. Pelz\n BIO Web of Conferences 129, 04027\n (2024)\n\n \n \n \n Parallax\n \n Ptychography\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n The 4D Camera: An 87 kHz Direct Electron Detector for Scanning/Transmission Electron Microscopy\n P. Ercius, I. J. Johnson, P. Pelz, B. H. Savitzky, L. Hughes, H. G. Brown, S. E. Zeltmann, S. Hsu, C. C. S. Pedroso, B. E. Cohen, R. Ramesh, D. Paul, J. M. Joseph, T. Stezelberger, C. Czarnik, M. Lent, E. Fong, J. Ciston, M. C. Scott, C. Ophus, A. M. Minor, P. Denes\n Microscopy and Microanalysis 30, 903-912\n (2024)\n\n \n \n \n Electron\n \n Scanning transmission electron microscopy\n \n Detector\n \n Scanning confocal electron microscopy\n \n Conventional transmission electron microscope\n \n Transmission electron microscopy\n \n \n \n\n \n\n \n \n \n \n \n 35\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 3.6× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Towards in-situ 4D-STEM observation of texture evolution in nano-crystalline thin films\n M. Wu, C. Hsieh, D. Stroppa, P. Pelz, C. Ophus, P. Lu, R. Dunin-Borkowski, C. Harreiss, P. Denninger, E. Spiecker\n BIO Web of Conferences 129, 07006\n (2024)\n\n \n \n \n In situ\n \n Nano-\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Using Phase Contrast 4D-STEM to solve 3D Inorganic and Biological Nanostructures\n C. Ophus, S. Ribet, G. Varnavides, P. M. Pelz\n Microscopy and Microanalysis 30\n (2024)\n\n \n \n \n Phase contrast microscopy\n \n Nanostructure\n \n Nanotechnology\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Analysis of Strain and Defects in Tellurium-WSe2 Moiré Heterostructures Using Scanning Nanodiffraction\n B. Sari, S. E. Zeltmann, C. Zhao, P. M. Pelz, A. Javey, A. M. Minor, C. Ophus, M. C. Scott\n ACS Nano 17, 22326-22333\n (2023)\n\n \n \n \n Heterojunction\n \n Tellurium\n \n Semiconductor\n \n Condensed matter physics\n \n Moiré pattern\n \n \n \n\n \n\n \n \n \n \n \n 18\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Controlled Self-Assembly of Gold Nanotetrahedra into Quasicrystals and Complex Periodic Supracrystals\n Y. Wang, J. Chen, R. Li, A. Götz, D. Drobek, T. Przybilla, S. Hübner, P. Pelz, L. Yang, B. A. Zubiri, E. Spiecker, M. Engel, X. Ye\n Journal of the American Chemical Society 145, 17902-17911\n (2023)\n\n \n \n \n Quasicrystal\n \n Tetrahedron\n \n Self-assembly\n \n Curvature\n \n \n \n\n \n\n \n \n \n \n \n 33\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 2.4× field avg\n \n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n High-resolution 3D phase-contrast imaging beyond the depth of field limit via ptychographic multi-slice electron tomography\n A. V. Romanov, M. G. Cho, M. Scott, C. Ophus, P. Pelz\n arXiv (Cornell University)\n (2023)\n\n \n \n \n Electron tomography\n \n Optics\n \n Phase-contrast imaging\n \n \n \n\n \n\n \n \n \n \n \n 1\n cit\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Imaging the electron charge density in monolayer MoS2 at the Ångstrom scale\n J. Martis, S. Susarla, A. Rayabharam, C. Su, T. Paule, P. Pelz, C. Huff, X. Xu, H. Li, M. Jaikissoon, V. Chen, E. Pop, K. Saraswat, A. Zettl, N. R. Aluru, R. Ramesh, P. Ercius, A. Majumdar\n Nature Communications 14\n (2023)\n\n \n \n \n Core charge\n \n Electron\n \n Core electron\n \n Scanning transmission electron microscopy\n \n Atomic physics\n \n Valence electron\n \n \n \n\n \n\n \n \n \n \n \n 34\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 6.7× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Lorentz near-field electron ptychography\n S. You, P. Lu, T. Schachinger, A. Kovács, R. E. Dunin-Borkowski, A. M. Maiden\n Applied Physics Letters 123\n (2023)\n\n \n \n \n Electron holography\n \n Ptychography\n \n Optics\n \n Holography\n \n \n \n\n \n\n \n \n \n \n \n 12\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 3.0× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Magnetic Phase Imaging using Lorentz Near-field Electron Ptychography\n S. You, P. Lu, A. Kovács, T. Schachinger, F. Allars, R. E. Dunin‐Borkowski, A. Maiden\n arXiv (Cornell University)\n (2023)\n\n \n \n \n Optics\n \n Ptychography\n \n Amplitude\n \n Diffraction\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Observation of Simultaneous Successive Twinning Using Atomic Electron Tomography\n P. M. Pelz, C. Groschner, A. Bruefach, C. Ophus, M. C. Scott\n Microscopy and Microanalysis 29, 707-708\n (2023)\n\n \n \n \n Crystal twinning\n \n Electron tomography\n \n Electron\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Resolution of Virtual Depth Sectioning from Four-Dimensional Scanning Transmission Electron Microscopy\n E. W. C. Terzoudis-Lumsden, T. C. Petersen, H. G. Brown, P. M. Pelz, C. Ophus, S. D. Findlay\n Microscopy and Microanalysis 29, 1409-1421\n (2023)\n\n \n \n \n Optical sectioning\n \n Optics\n \n Parallax\n \n Dark field microscopy\n \n Scanning transmission electron microscopy\n \n Scattering\n \n \n \n\n \n\n \n \n \n \n \n 14\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 2.8× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Solving complex nanostructures with ptychographic atomic electron tomography\n P. M. Pelz, S. M. Griffin, S. Stonemeyer, D. Popple, H. DeVyldere, P. Ercius, A. Zettl, M. C. Scott, C. Ophus\n Nature Communications 14\n (2023)\n\n \n \n \n Electron tomography\n \n Nanomaterials\n \n Atomic units\n \n Electron diffraction\n \n High-resolution transmission electron microscopy\n \n \n \n\n \n\n \n \n \n \n \n 56\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 14.1× field avg\n \n \n\n \n \n Top 1%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Using 4D-STEM to measure the nanoscale structure of materials in two and three dimensions\n C. Ophus, P. M. Pelz, H. A. Sternlict, B. H. Savitzky, A. Rakowski, A. Bruefach, S. Ribet, M. S. Scott\n Acta Crystallographica Section A Foundations and Advances 79, C251-C251\n (2023)\n\n \n \n \n Nanoscopic scale\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Using a fast hybrid pixel detector for dose-efficient diffraction imaging beam-sensitive organic molecular thin films\n M. Wu, D. G. Stroppa, P. Pelz, E. Spiecker\n Journal of Physics: Materials 6, 045008\n (2023)\n\n \n \n \n Detector\n \n Crystallite\n \n Optics\n \n \n \n\n \n\n \n \n \n \n \n 11\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Virtual imaging enabled by scattering matrix reconstruction from 4D scanning transmission electron microscopy\n E. W. C. Terzoudis-Lumsden, T. C. Petersen, H. G. Brown, P. M. Pelz, C. Ophus, S. D. Findlay\n Acta Crystallographica Section A Foundations and Advances 79, C1092-C1092\n (2023)\n\n \n \n \n Scanning transmission electron microscopy\n \n Scattering\n \n Transmission electron microscopy\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n A Three-Dimensional Reconstruction Algorithm for Scanning Transmission Electron Microscopy Data from a Single Sample Orientation\n H. G. Brown, P. M. Pelz, S. Hsu, Z. Zhang, R. Ramesh, K. Inzani, E. Sheridan, S. M. Griffin, M. Schloz, T. C. Pekin, C. T. Koch, S. D. Findlay, L. J. Allen, M. C. Scott, C. Ophus, J. Ciston\n Microscopy and Microanalysis 28, 1632-1640\n (2022)\n\n \n \n \n Electron tomography\n \n Scanning confocal electron microscopy\n \n Transmission electron microscopy\n \n Scanning transmission electron microscopy\n \n Microscopy\n \n Optics\n \n \n \n\n \n\n \n \n \n \n \n 14\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Observation of formation and local structures of metal-organic layers via complementary electron microscopy techniques\n X. Peng, P. M. Pelz, Q. Zhang, P. Chen, L. Cao, Y. Zhang, H. Liao, H. Zheng, C. Wang, S. Sun, M. C. Scott\n Nature Communications 13\n (2022)\n\n \n \n \n Transmission electron microscopy\n \n Electron microscope\n \n \n \n\n \n\n \n \n \n \n \n 45\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 2.7× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Qualitative Phase Contrast Imaging using Interferometric 4DSTEM\n A. Ducharme, P. Pelz, L. Brown, P. Ercius, B. McMorran\n Microscopy and Microanalysis 28, 2504-2505\n (2022)\n\n \n \n \n Interferometry\n \n Phase contrast microscopy\n \n Phase-contrast imaging\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Real-Time Interactive 4D-STEM Phase-Contrast Imaging From Electron Event Representation Data: Less computation with the right representation\n P. M. Pelz, I. Johnson, C. Ophus, P. Ercius, M. C. Scott\n IEEE Signal Processing Magazine 39, 25-31\n (2022)\n\n \n \n \n Detector\n \n Scanning transmission electron microscopy\n \n Frame rate\n \n \n \n\n \n\n \n \n \n \n \n 28\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 2.9× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Simultaneous Successive Twinning Captured by Atomic Electron Tomography\n P. M. Pelz, C. Groschner, A. Bruefach, A. Satariano, C. Ophus, M. C. Scott\n ACS Nano 16, 588-596\n (2022)\n\n \n \n \n Crystal twinning\n \n Icosahedral symmetry\n \n Nanostructure\n \n Electron tomography\n \n Nanoparticle\n \n Atomic units\n \n \n \n\n \n\n \n \n \n \n \n 26\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 2.9× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Structured Illumination Electron Ptychography at the Atomic Scale\n P. Pelz, H. DeVyldere, P. Ercius, M. Scott\n Microscopy and Microanalysis 28, 388-390\n (2022)\n\n \n \n \n Atomic units\n \n Ptychography\n \n \n \n\n \n\n \n \n \n \n \n 4\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n A Fast Algorithm for Scanning Transmission Electron Microscopy Imaging and 4D-STEM Diffraction Simulations\n P. M. Pelz, A. Rakowski, L. R. DaCosta, B. H. Savitzky, M. C. Scott, C. Ophus\n Microscopy and Microanalysis 27, 835-848\n (2021)\n\n \n \n \n Prism\n \n Scanning transmission electron microscopy\n \n Scattering\n \n \n \n\n \n\n \n \n \n \n \n 17\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 2.0× field avg\n \n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n A faster image simulation algorithm for scanning transmission electron microscopy\n P. Pelz, L. DaCosta, A. M. Rakowski, M. Scott, C. Ophus\n Microscopy and Microanalysis 27, 1272-1275\n (2021)\n\n \n \n \n Transmission electron microscopy\n \n Scanning transmission electron microscopy\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Depth Resolution in Ptychography\n T. U. o. Sheffield, S. You\n Proceedings of the European Microscopy Congress 2020\n (2021)\n\n \n \n \n Ptychography\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Materials Science Applications and Analysis of Very Large 4D-STEM Experiments\n C. Ophus, B. Savitzky, P. Pelz, A. M. Rakowski, L. R. DaCosta, L. Hughes, S. Zeltmann, K. C. Bustillo, M. Scott, A. Minor\n Microscopy and Microanalysis 27, 14-15\n (2021)\n\n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Phase-contrast imaging of multiply-scattering extended objects at atomic resolution by reconstruction of the scattering matrix\n P. M. Pelz, H. G. Brown, S. Stonemeyer, S. D. Findlay, A. Zettl, P. Ercius, Y. Zhang, J. Ciston, M. C. Scott, C. Ophus\n Physical Review Research 3\n (2021)\n\n \n \n \n Scattering\n \n Optics\n \n \n \n\n \n\n \n \n \n \n \n 21\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 4.0× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Prismatic 2.0 – Simulation software for scanning and high resolution transmission electron microscopy (STEM and HRTEM)\n L. R. DaCosta, H. G. Brown, P. M. Pelz, A. Rakowski, N. Barber, P. O’Donovan, P. McBean, L. Jones, J. Ciston, M. Scott, C. Ophus\n Micron 151, 103141\n (2021)\n\n \n \n \n Computational science\n \n Scanning transmission electron microscopy\n \n \n \n\n \n\n \n \n \n \n \n 99\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 10.2× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Py4DSTEM: A Software Package for Four-Dimensional Scanning Transmission Electron Microscopy Data Analysis\n B. H. Savitzky, S. E. Zeltmann, L. A. Hughes, H. G. Brown, S. Zhao, P. M. Pelz, T. C. Pekin, E. S. Barnard, J. Donohue, L. R. DaCosta, E. Kennedy, Y. Xie, M. T. Janish, M. M. Schneider, P. Herring, C. Gopal, A. Anapolsky, R. Dhall, K. C. Bustillo, P. Ercius, M. C. Scott, J. Ciston, A. M. Minor, C. Ophus\n Microscopy and Microanalysis 27, 712-743\n (2021)\n\n \n \n \n Software\n \n \n \n\n \n\n \n \n \n \n \n 350\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 27.6× field avg\n \n \n\n \n \n Top 1%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Real-time interactive ptychography from electron event representation data\n P. Pelz, P. Ercius, C. Ophus, I. Johnson, M. Scott\n Microscopy and Microanalysis 27, 188-189\n (2021)\n\n \n \n \n Detector\n \n Ptychography\n \n Frame rate\n \n Scanning transmission electron microscopy\n \n \n \n\n \n\n \n \n \n \n \n 6\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Scalable multicomponent spectral analysis for high-throughput data\n annotation\n R. P. Xian, R. Ernstorfer, P. Pelz\n arXiv (Cornell University)\n (2021)\n\n \n \n \n Scalability\n \n Throughput\n \n Computational science\n \n Annotation\n \n Software\n \n Parametric statistics\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Scattering Matrix Determination in Crystalline Materials from 4D Scanning Transmission Electron Microscopy at a Single Defocus Value\n S. D. Findlay, H. G. Brown, P. M. Pelz, C. Ophus, J. Ciston, L. J. Allen\n Microscopy and Microanalysis 27, 744-757\n (2021)\n\n \n \n \n Scattering\n \n Scanning transmission electron microscopy\n \n Optics\n \n Transmission electron microscopy\n \n Electron scattering\n \n \n \n\n \n\n \n \n \n \n \n 9\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n smpr3d: an open-source toolkit for 3D phase-contrast imaging from 4D-STEM datasets\n P. Pelz, H. Brown, P. Ercius, I. Johnson, J. Ciston, M. Scott, C. Ophus\n Microscopy and Microanalysis 27, 1524-1526\n (2021)\n\n \n \n \n Phase contrast microscopy\n \n Open source\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n A single-projection three-dimensional reconstruction algorithm for scanning transmission electron microscopy data\n H. G. Brown, P. Pelz, S. Hsu, Z. Zhang, R. Ramesh, K. Inzani, E. Sheridan, S. M. Griffin, M. Schloz, T. C. Pekin, C. T. Koch, S. D. Findlay, L. J. Allen, M. Scott, C. Ophus, J. Ciston\n arXiv (Cornell University)\n (2020)\n\n \n \n \n Electron tomography\n \n Scanning confocal electron microscopy\n \n Transmission electron microscopy\n \n Scanning transmission electron microscopy\n \n Microscopy\n \n Yttrium\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Achieving High-resolution of Large Specimens Using Aberration-corrected Tomography\n R. Yalisove, S. H. Sung, J. Schwartz, C. Groschner, P. Pelz, H. Zheng, Y. Jiang, C. Ophus, M. Scott, P. Ercius, R. Hovden\n Microscopy and Microanalysis 26, 1860-1862\n (2020)\n\n \n \n \n Tomography\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Improving the Speed and Accuracy of Large-scale Scanning Transmission Electron Microscopy (STEM) Electron Scattering Simulations\n C. Ophus, H. Brown, L. R. Dacosta, P. Pelz, J. Schwartz, R. Yalisove, R. Hovden, J. Ciston, B. Savitzky\n Microscopy and Microanalysis 26, 456-458\n (2020)\n\n \n \n \n Scanning transmission electron microscopy\n \n Electron\n \n Scattering\n \n Transmission electron microscopy\n \n \n \n\n \n\n \n \n \n \n \n 2\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Phase Contrast Imaging in Thick, Heterogeneous Samples via S-Matrix Phase Retrieval and Depth Sectioning\n P. Pelz, H. Brown, S. Findlay, M. Scott, J. Ciston, C. Ophus\n Microscopy and Microanalysis 26, 462-464\n (2020)\n\n \n \n \n Phase contrast microscopy\n \n Phase-contrast imaging\n \n \n \n\n \n\n \n \n \n \n \n 2\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Reconstructing the Scattering Matrix from Scanning Electron Diffraction Measurements Alone\n P. Pelz, H. G. Brown, J. Ciston, S. D. Findlay, Y. Zhang, M. Scott, C. Ophus\n arXiv (Cornell University)\n (2020)\n\n \n \n \n Scattering\n \n Optics\n \n Diffraction\n \n Wavefront\n \n \n \n\n \n\n \n \n \n \n \n 6\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n The 4D Camera – An 87 kHz Frame-rate Detector for Counted 4D-STEM Experiments\n P. Ercius, I. Johnson, H. Brown, P. Pelz, S. Hsu, B. Draney, E. Fong, A. Goldschmidt, J. Joseph, J. Lee, J. Ciston, C. Ophus, M. Scott, A. Selvarajan, D. Paul, D. Skinner, M. Hanwell, C. Harris, P. Avery, T. Stezelberger, C. Tindall, R. Ramesh, A. Minor, P. Denes\n Microscopy and Microanalysis 26, 1896-1897\n (2020)\n\n \n \n \n Detector\n \n \n \n\n \n\n \n \n \n \n \n 38\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 6.3× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n 3D Imaging Using HAADF-STEM and HRTEM Atomic Electron Tomography\n C. Ophus, D. Ren, J. Zhou, H. Devyldere, M. Chen, P. M. Pelz, P. Ercius, J. Miao, M. Scott, L. Waller\n Microscopy and Microanalysis 25, 394-395\n (2019)\n\n \n \n \n High-resolution transmission electron microscopy\n \n Electron tomography\n \n Scanning transmission electron microscopy\n \n \n \n\n \n\n \n \n \n \n \n 0\n cits\n \n \n\n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Advanced Phase Reconstruction Methods Enabled by Four-Dimensional Scanning Transmission Electron Microscopy\n C. Ophus, T. R. Harvey, F. S. Yasin, H. G. Brown, P. M. Pelz, B. H. Savitzky, J. Ciston, B. J. McMorran\n Microscopy and Microanalysis 25, 10-11\n (2019)\n\n \n \n \n Scanning transmission electron microscopy\n \n Transmission electron microscopy\n \n Scanning confocal electron microscopy\n \n \n \n\n \n\n \n \n \n \n \n 14\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Electron Ptychography of Single Biological Macromolecules\n P. M. Pelz, R. Bücker, G. Ramm, H. Venugopal, G. Kassier, D. Eggert, P. Lu, R. E. Dunin-Borkowski, R. J. D. Miller\n Microscopy and Microanalysis 25, 72-73\n (2019)\n\n \n\n \n\n \n \n \n \n \n 5\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Engineering Chiral Structures Through Strain Release: Electron Tomography Study of Twisted Nanowires\n X. Song, A. Bruefach, P. M. Pelz, H. Devyldere, M. Scott\n Microscopy and Microanalysis 25, 1804-1805\n (2019)\n\n \n \n \n Nanowire\n \n Electron tomography\n \n Electron\n \n \n \n\n \n\n \n \n \n \n \n 1\n cit\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Towards Ptychography with Structured Illumination, and a Derivative-Based Reconstruction Algorithm\n W. V. d. Broek, M. Schloz, T. Pekin, P. Pelz, P. Lu, M. Kruth, V. Grillo, R. Dunin-Borkowski, R. Miller, C. Koch\n Microscopy and Microanalysis 25, 58-59\n (2019)\n\n \n\n \n\n \n \n \n \n \n 7\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n\n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Low-dose cryo electron ptychography via non-convex Bayesian optimization\n P. M. Pelz, W. X. Qiu, R. Bücker, G. Kassier, R. J. D. Miller\n Scientific Reports 7\n (2017)\n\n \n \n \n Ptychography\n \n Phase retrieval\n \n Optics\n \n \n \n\n \n\n \n \n \n \n \n 86\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 7.1× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n On-the-fly scans for X-ray ptychography\n P. M. Pelz, M. Guizar-Sicairos, P. Thibault, I. Johnson, M. Holler, A. Menzel\n Applied Physics Letters 105\n (2014)\n\n \n \n \n Ptychography\n \n Optics\n \n Mesoscopic physics\n \n \n \n\n \n\n \n \n \n \n \n 142\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 10.1× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n \n Photo-double-ionization of ethylene and acetylene near threshold\n B. Gaire, S. Y. Lee, D. J. Haxton, P. M. Pelz, I. Bocharova, F. P. Sturm, N. Gehrken, M. Honig, M. Pitzer, D. Metz, H. Kim, M. Schöffler, R. Dörner, H. Gassert, S. Zeller, J. Voigtsberger, W. Cao, M. Zohrabi, J. Williams, A. Gatton, D. Reedy, C. Nook, T. Müller, A. L. Landers, C. L. Cocke, I. Ben-Itzhak, T. Jahnke, A. Belkacem, T. Weber\n Physical Review A 89\n (2014)\n\n \n \n \n Dication\n \n Double ionization\n \n Ionization\n \n Atomic physics\n \n Excited state\n \n Singlet state\n \n \n \n\n \n\n \n \n \n \n \n 50\n cits\n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n \n \n \n 3.2× field avg\n \n \n\n \n \n Top 10%\n \n \n\n \n \n Open Access\n \n \n\n \n \n \n \n \n\n \n Details\n \n \n \n DOI\n \n \n \n \n \n \n \n\n\n\n\nNo matching items" }, { - "objectID": "publications/articles/36_using_4d_stem_to_measure_the_nanoscale_structure_o.html#citation-apa-7", - "href": "publications/articles/36_using_4d_stem_to_measure_the_nanoscale_structure_o.html#citation-apa-7", - "title": "Using 4D-STEM to measure the nanoscale structure of materials in two and three dimensions", + "objectID": "hyperscale.html", + "href": "hyperscale.html", + "title": "ECLIPSE Lab", "section": "", - "text": "Using 4D-STEM to measure the nanoscale structure of materials in two and three dimensions C. Ophus, P. M. Pelz, H. A. Sternlict, B. H. Savitzky, A. Rakowski, A. Bruefach, S. Ribet, M. S. Scott Acta Crystallographica Section A Foundations and Advances 79, C251-C251" - }, - { - "objectID": "publications/articles/36_using_4d_stem_to_measure_the_nanoscale_structure_o.html#abstract", - "href": "publications/articles/36_using_4d_stem_to_measure_the_nanoscale_structure_o.html#abstract", - "title": "Using 4D-STEM to measure the nanoscale structure of materials in two and three dimensions", - "section": "Abstract", - "text": "Abstract\n[Abstract will be added manually]" + "text": "Electron microscopy is essential to understanding structure-property-function relationships in modern materials engineering, condensed matter physics, chemistry, and structural biology. Yet, due to complicated scattering physics, today’s electron microscopes can only image tiny volumes with 3D atomic resolution. Within this project, we will turn the tables by utilizing and inverting the scattering physics to image scale-bridging volumes with atomic detail and chemical superresolution. Combining compressive data-acquisition protocols, state-of-the-art electron optics and detectors, and co-designed computational imaging algorithms will make this possible." }, { - "objectID": "publications/articles/21_materials_science_applications_and_analysis_of_ver.html", - "href": "publications/articles/21_materials_science_applications_and_analysis_of_ver.html", - "title": "Materials Science Applications and Analysis of Very Large 4D-STEM Experiments", + "objectID": "hyperscale.html#vision-of-hyperscaleem", + "href": "hyperscale.html#vision-of-hyperscaleem", + "title": "ECLIPSE Lab", "section": "", - "text": "Materials Science Applications and Analysis of Very Large 4D-STEM Experiments C. Ophus, B. Savitzky, P. Pelz, A. M. Rakowski, L. R. DaCosta, L. Hughes, S. Zeltmann, K. C. Bustillo, M. Scott, A. Minor Microscopy and Microanalysis 27, 14-15" + "text": "Electron microscopy is essential to understanding structure-property-function relationships in modern materials engineering, condensed matter physics, chemistry, and structural biology. Yet, due to complicated scattering physics, today’s electron microscopes can only image tiny volumes with 3D atomic resolution. Within this project, we will turn the tables by utilizing and inverting the scattering physics to image scale-bridging volumes with atomic detail and chemical superresolution. Combining compressive data-acquisition protocols, state-of-the-art electron optics and detectors, and co-designed computational imaging algorithms will make this possible." }, { - "objectID": "publications/articles/21_materials_science_applications_and_analysis_of_ver.html#citation-apa-7", - "href": "publications/articles/21_materials_science_applications_and_analysis_of_ver.html#citation-apa-7", - "title": "Materials Science Applications and Analysis of Very Large 4D-STEM Experiments", - "section": "", - "text": "Materials Science Applications and Analysis of Very Large 4D-STEM Experiments C. Ophus, B. Savitzky, P. Pelz, A. M. Rakowski, L. R. DaCosta, L. Hughes, S. Zeltmann, K. C. Bustillo, M. Scott, A. Minor Microscopy and Microanalysis 27, 14-15" + "objectID": "hyperscale.html#what-were-building", + "href": "hyperscale.html#what-were-building", + "title": "ECLIPSE Lab", + "section": "What we’re building", + "text": "What we’re building\nHyperScaleEM is building the microscopy workflow that doesn’t exist yet: an automated pipeline that can image hundreds of nanometres across with atomic-level resolution and chemical composition — in 3D, at the speed of a modern electron microscope, without human intervention at every step.\nThe core challenge isn’t the hardware — it’s that the computational methods required to reconstruct this data are too slow, too brittle, and too manual. We solve this by designing physics-informed AI that learns the microscope’s forward model and inverts it at scale, combined with closed-loop acquisition that decides where to measure next based on what it’s already seen.\nWhat this enables: A biologist studying a virus particle, a battery engineer characterising a dendrite, or a chemist imaging a catalyst — all getting the same quality of 3D atomic structure data that today only a handful of world-leading centres can produce, in hours not weeks." }, { - "objectID": "publications/articles/21_materials_science_applications_and_analysis_of_ver.html#abstract", - "href": "publications/articles/21_materials_science_applications_and_analysis_of_ver.html#abstract", - "title": "Materials Science Applications and Analysis of Very Large 4D-STEM Experiments", - "section": "Abstract", - "text": "Abstract\nWith the introduction of high speed direct electron detectors, scanning transmission electron microscopy (STEM) can now record full images of the diffracted electron probe scanned over the sample, producing a four-dimensional dataset, we refer to as a 4D-STEM experiment [1]. Figure 1a shows the experimental geometry of 4D-STEM measurements, using conventional apertures, bullseye patterned apertures to enhance strain measurements [2], and multibeam apertures which enable multiple simultaneous diffraction experiments [3]. These diffraction images of the electron probe are extremely rich in atomic-scale information, such as the sample structure, phase, orientation, composition, presence of defects, and more. The STEM probe size can vary over multiple orders of magnitude, ranging from sub-atomic to tens of nanometers, allowing measurements ranging from the position of single atoms to robust statistical measurements of properties such as lattice spacing over many crystalline unit cells. Because the size of a STEM probe is decoupled from the step size between measurements, we can tune the field of view of a given measurement to any desired length scales. The high speed of modern detectors has made recording up to a million diffraction images per dataset routine, requiring new approaches and software tools to deal with this “data deluge.”" + "objectID": "hyperscale.html#project-roadmap", + "href": "hyperscale.html#project-roadmap", + "title": "ECLIPSE Lab", + "section": "Project roadmap", + "text": "Project roadmap\n\n\n\nAchieved\n\n\n3D atomic resolution in volumes >10 nm\n2023-2024\nMulti-slice electron ptychographic tomography demonstrated three-dimensional phase-contrast microscopy beyond conventional depth-of-focus limits. See also arXiv:2512.19460.\n\n\n\n\nIn progress\n\n\nScale-bridging imaging pipeline\n2025-2027\nPipeline work is connecting acquisition, reconstruction, and analysis for larger 4D-STEM volumes. Progress update.\n\n\n\n\nRamping up\n\n\nAutomated 3D chemical mapping across volumes\n2026-2028\nIntegrating hyperspectral signals with scalable 3D reconstruction so structure and chemistry can be recovered together.\n\n\n\n\nRamping up\n\n\nIn-situ dynamics capture with autonomous acquisition\n2027-2029\nClosed-loop acquisition will target dynamic processes and decide where to measure next based on the evolving reconstruction.\n\n\n\n\nRamping up\n\n\nCross-scale integration: atomic-to-nanometre bridging\n2028-2030\nThe final integration step links atomic detail with nanometre-scale context across large reconstructed volumes." }, { - "objectID": "publications/articles/29_qualitative_phase_contrast_imaging_using_interfero.html", - "href": "publications/articles/29_qualitative_phase_contrast_imaging_using_interfero.html", - "title": "Qualitative Phase Contrast Imaging using Interferometric 4DSTEM", - "section": "", - "text": "Qualitative Phase Contrast Imaging using Interferometric 4DSTEM A. Ducharme, P. Pelz, L. Brown, P. Ercius, B. McMorran Microscopy and Microanalysis 28, 2504-2505" + "objectID": "hyperscale.html#team-open-positions", + "href": "hyperscale.html#team-open-positions", + "title": "ECLIPSE Lab", + "section": "Team & open positions", + "text": "Team & open positions\nHyperScaleEM is led by Prof. Philipp Pelz (PI) and a multidisciplinary team of postdoctoral researchers, PhD students, and visiting collaborators. The project is integrated with the broader ECLIPSE Lab and the CENEM Centre for Nanoanalysis at FAU Erlangen-Nürnberg.\nOpen positions funded through HyperScaleEM are advertised on the ECLIPSE Lab Opportunities page. We actively encourage applications from candidates with backgrounds in physics, materials science, computer science, or applied mathematics.\nInterested in collaboration? Contact the lab →" }, { - "objectID": "publications/articles/29_qualitative_phase_contrast_imaging_using_interfero.html#citation-apa-7", - "href": "publications/articles/29_qualitative_phase_contrast_imaging_using_interfero.html#citation-apa-7", - "title": "Qualitative Phase Contrast Imaging using Interferometric 4DSTEM", + "objectID": "trademark.html", + "href": "trademark.html", + "title": "Accessibility", "section": "", - "text": "Qualitative Phase Contrast Imaging using Interferometric 4DSTEM A. Ducharme, P. Pelz, L. Brown, P. Ercius, B. McMorran Microscopy and Microanalysis 28, 2504-2505" - }, - { - "objectID": "publications/articles/29_qualitative_phase_contrast_imaging_using_interfero.html#abstract", - "href": "publications/articles/29_qualitative_phase_contrast_imaging_using_interfero.html#abstract", - "title": "Qualitative Phase Contrast Imaging using Interferometric 4DSTEM", - "section": "Abstract", - "text": "Abstract\nPhase contrast imaging has been implemented inside the TEM column in the last decade at atomic resolution through differential phase contrast (DPC) and ptychography [1-2]. This imaging mode has higher contrast than more direct TEM imaging techniques, unlocking measurements of low Z and 2D materials and nanoscale electric fields [3-4]. Another route to phase contrast imaging is through structuring the electron beam prior to sample interaction, such as in MIDI-STEM [5]" + "text": "ECLIPSE Lab aims to make this website accessible and usable for all visitors.\n\n\n\nClear page structure and headings\nReadable contrast and typography\nKeyboard-friendly navigation where possible\n\n\n\n\nSome legacy content and embedded media may not yet fully meet current accessibility best practices.\n\n\n\nIf you encounter an accessibility barrier, please let us know via the Contact page so we can improve the site." }, { - "objectID": "publications/articles/37_using_a_fast_hybrid_pixel_detector_for_dose_effici.html", - "href": "publications/articles/37_using_a_fast_hybrid_pixel_detector_for_dose_effici.html", - "title": "Using a fast hybrid pixel detector for dose-efficient diffraction imaging beam-sensitive organic molecular thin films", + "objectID": "trademark.html#accessibility-statement", + "href": "trademark.html#accessibility-statement", + "title": "Accessibility", "section": "", - "text": "Using a fast hybrid pixel detector for dose-efficient diffraction imaging beam-sensitive organic molecular thin films M. Wu, D. G. Stroppa, P. Pelz, E. Spiecker Journal of Physics: Materials 6, 045008" + "text": "ECLIPSE Lab aims to make this website accessible and usable for all visitors.\n\n\n\nClear page structure and headings\nReadable contrast and typography\nKeyboard-friendly navigation where possible\n\n\n\n\nSome legacy content and embedded media may not yet fully meet current accessibility best practices.\n\n\n\nIf you encounter an accessibility barrier, please let us know via the Contact page so we can improve the site." }, { - "objectID": "publications/articles/37_using_a_fast_hybrid_pixel_detector_for_dose_effici.html#citation-apa-7", - "href": "publications/articles/37_using_a_fast_hybrid_pixel_detector_for_dose_effici.html#citation-apa-7", - "title": "Using a fast hybrid pixel detector for dose-efficient diffraction imaging beam-sensitive organic molecular thin films", + "objectID": "footer.html", + "href": "footer.html", + "title": "ECLIPSE Lab", "section": "", - "text": "Using a fast hybrid pixel detector for dose-efficient diffraction imaging beam-sensitive organic molecular thin films M. Wu, D. G. Stroppa, P. Pelz, E. Spiecker Journal of Physics: Materials 6, 045008" - }, - { - "objectID": "publications/articles/37_using_a_fast_hybrid_pixel_detector_for_dose_effici.html#abstract", - "href": "publications/articles/37_using_a_fast_hybrid_pixel_detector_for_dose_effici.html#abstract", - "title": "Using a fast hybrid pixel detector for dose-efficient diffraction imaging beam-sensitive organic molecular thin films", - "section": "Abstract", - "text": "Abstract\nWe discuss the benefits and showcase the applications of using a fast, hybrid-pixel detector (HPD) for 4D-STEM experiments and emphasize that in diffraction imaging the structure of molecular nano-crystallites in organic solar cell thin films with a dose-efficient modality 4D-scanning confocal electron diffraction (4D-SCED). With 4D-SCED, spot diffraction patterns form from an interaction area of a few nm while the electron beam rasters over the sample, resulting in high dose effectiveness yet highly demanding on the detector in frame speed, sensitivity, and single-pixel count rate. We compare the datasets acquired with 4D-SCED using a fast HPD with those using state-of-the-art complementary metal-oxide-semiconductor (CMOS) cameras to map the in-plane orientation of π-stacking nano-crystallites of small molecule DRCN5T in a blend of DRCN5T: PC71BM after solvent vapor annealing. The high-speed CMOS camera, using a scintillator optimized for low doses, showed impressive results for electron sensitivity and low noise. However, the limited speed restricted practical experimental conditions and caused unintended damage to small and weak nano-crystallites. The fast HPD, with a speed three orders of magnitude higher, allows a much higher probe current yet a lower total dose on the sample, and more scan points cover a large field of view in less time. A lot more faint diffraction signals that correspond to just a few electron events are detected. The improved performance of direct electron detectors opens more possibilities to enhance the characterization of beam-sensitive materials using 4D-STEM techniques." + "text": "Professur für Computational Materials MicroscopyUniversität\n Erlangen-Nürnberg\n Cauerstr. 3\n 91058 Erlangen\n Germany\n \n \n \n \n \n Imprint\n Privacy\n Accessibility" }, { - "objectID": "publications/articles/47_near_isotropic_sub_ångstrom_3d_resolution_phase_co.html", - "href": "publications/articles/47_near_isotropic_sub_ångstrom_3d_resolution_phase_co.html", - "title": "Near-isotropic sub-Ångstrom 3d resolution phase contrast imaging achieved by end-to-end ptychographic electron tomography", + "objectID": "publications/articles/32_resolution_of_virtual_depth_sectioning_from_four_d.html", + "href": "publications/articles/32_resolution_of_virtual_depth_sectioning_from_four_d.html", + "title": "Resolution of Virtual Depth Sectioning from Four-Dimensional Scanning Transmission Electron Microscopy", "section": "", - "text": "Near-isotropic sub-Ångstrom 3d resolution phase contrast imaging achieved by end-to-end ptychographic electron tomography S. You, A. Romanov, P. M. Pelz Physica Scripta 100, 015404" + "text": "Resolution of Virtual Depth Sectioning from Four-Dimensional Scanning Transmission Electron Microscopy E. W. C. Terzoudis-Lumsden, T. C. Petersen, H. G. Brown, P. M. Pelz, C. Ophus, S. D. Findlay Microscopy and Microanalysis 29, 1409-1421" }, { - "objectID": "publications/articles/47_near_isotropic_sub_ångstrom_3d_resolution_phase_co.html#citation-apa-7", - "href": "publications/articles/47_near_isotropic_sub_ångstrom_3d_resolution_phase_co.html#citation-apa-7", - "title": "Near-isotropic sub-Ångstrom 3d resolution phase contrast imaging achieved by end-to-end ptychographic electron tomography", + "objectID": "publications/articles/32_resolution_of_virtual_depth_sectioning_from_four_d.html#citation-apa-7", + "href": "publications/articles/32_resolution_of_virtual_depth_sectioning_from_four_d.html#citation-apa-7", + "title": "Resolution of Virtual Depth Sectioning from Four-Dimensional Scanning Transmission Electron Microscopy", "section": "", - "text": "Near-isotropic sub-Ångstrom 3d resolution phase contrast imaging achieved by end-to-end ptychographic electron tomography S. You, A. Romanov, P. M. Pelz Physica Scripta 100, 015404" + "text": "Resolution of Virtual Depth Sectioning from Four-Dimensional Scanning Transmission Electron Microscopy E. W. C. Terzoudis-Lumsden, T. C. Petersen, H. G. Brown, P. M. Pelz, C. Ophus, S. D. Findlay Microscopy and Microanalysis 29, 1409-1421" }, { - "objectID": "publications/articles/47_near_isotropic_sub_ångstrom_3d_resolution_phase_co.html#abstract", - "href": "publications/articles/47_near_isotropic_sub_ångstrom_3d_resolution_phase_co.html#abstract", - "title": "Near-isotropic sub-Ångstrom 3d resolution phase contrast imaging achieved by end-to-end ptychographic electron tomography", + "objectID": "publications/articles/32_resolution_of_virtual_depth_sectioning_from_four_d.html#abstract", + "href": "publications/articles/32_resolution_of_virtual_depth_sectioning_from_four_d.html#abstract", + "title": "Resolution of Virtual Depth Sectioning from Four-Dimensional Scanning Transmission Electron Microscopy", "section": "Abstract", - "text": "Abstract\nThree-dimensional atomic resolution imaging using transmission electron microscopes is a unique capability that requires challenging experiments. Linear electron tomography methods are limited by the missing wedge effect, requiring a high tilt range. Multislice ptychography can achieve deep sub-Ångstrom resolution in the transverse direction, but depth resolution is limited to 2 to 3 nanometers. In this paper, we propose and demonstrate an end-to-end approach to reconstructing the electrostatic potential volume of the sample directly from the 4D-STEM datasets. End-to-end multislice ptychographic tomography recovers several slices at each tomography tilt angle and compensates for the missing wedge effect. The algorithm is initially tested in simulation with a Pt@Al2O3 core–shell nanoparticle, where both heavy and light atoms are recovered in 3D from an unaligned 4D-STEM tilt series with a restricted tilt range of 90 degrees. We also demonstrate the algorithm experimentally, recovering a Te nanoparticle with sub-Ångstrom resolution." + "text": "Abstract\nOne approach to three-dimensional structure determination using the wealth of scattering data in four-dimensional (4D) scanning transmission electron microscopy (STEM) is the parallax method proposed by Ophus et al. (2019. Advanced phase reconstruction methods enabled by 4D scanning transmission electron microscopy, Microsc Microanal25, 10–11), which determines the scattering matrix and uses it to synthesize a virtual depth-sectioning reconstruction of the sample structure. Drawing on an equivalence with a hypothetical confocal imaging mode, we derive contrast transfer and point spread functions for this parallax method applied to weakly scattering objects, showing them identical to earlier depth-sectioning STEM modes when only bright field signal is used, but that improved depth resolution is possible if dark field signal can be used. Through a simulation-based study of doped Si, we show that this depth resolution is preserved for thicker samples, explore the impact of shot noise on the parallax reconstructions, discuss challenges to making use of dark field signal, and identify cases where the interpretation of the parallax reconstruction breaks down." }, { - "objectID": "publications/articles/27_simultaneous_successive_twinning_captured_by_atomi.html", - "href": "publications/articles/27_simultaneous_successive_twinning_captured_by_atomi.html", - "title": "Simultaneous Successive Twinning Captured by Atomic Electron Tomography", + "objectID": "publications/articles/06_towards_ptychography_with_structured_illumination_.html", + "href": "publications/articles/06_towards_ptychography_with_structured_illumination_.html", + "title": "Towards Ptychography with Structured Illumination, and a Derivative-Based Reconstruction Algorithm", "section": "", - "text": "Simultaneous Successive Twinning Captured by Atomic Electron Tomography P. M. Pelz, C. Groschner, A. Bruefach, A. Satariano, C. Ophus, M. C. Scott ACS Nano 16, 588-596" + "text": "Towards Ptychography with Structured Illumination, and a Derivative-Based Reconstruction Algorithm W. V. d. Broek, M. Schloz, T. Pekin, P. Pelz, P. Lu, M. Kruth, V. Grillo, R. Dunin-Borkowski, R. Miller, C. Koch Microscopy and Microanalysis 25, 58-59" }, { - "objectID": "publications/articles/27_simultaneous_successive_twinning_captured_by_atomi.html#citation-apa-7", - "href": "publications/articles/27_simultaneous_successive_twinning_captured_by_atomi.html#citation-apa-7", - "title": "Simultaneous Successive Twinning Captured by Atomic Electron Tomography", + "objectID": "publications/articles/06_towards_ptychography_with_structured_illumination_.html#citation-apa-7", + "href": "publications/articles/06_towards_ptychography_with_structured_illumination_.html#citation-apa-7", + "title": "Towards Ptychography with Structured Illumination, and a Derivative-Based Reconstruction Algorithm", "section": "", - "text": "Simultaneous Successive Twinning Captured by Atomic Electron Tomography P. M. Pelz, C. Groschner, A. Bruefach, A. Satariano, C. Ophus, M. C. Scott ACS Nano 16, 588-596" + "text": "Towards Ptychography with Structured Illumination, and a Derivative-Based Reconstruction Algorithm W. V. d. Broek, M. Schloz, T. Pekin, P. Pelz, P. Lu, M. Kruth, V. Grillo, R. Dunin-Borkowski, R. Miller, C. Koch Microscopy and Microanalysis 25, 58-59" }, { - "objectID": "publications/articles/27_simultaneous_successive_twinning_captured_by_atomi.html#abstract", - "href": "publications/articles/27_simultaneous_successive_twinning_captured_by_atomi.html#abstract", - "title": "Simultaneous Successive Twinning Captured by Atomic Electron Tomography", + "objectID": "publications/articles/06_towards_ptychography_with_structured_illumination_.html#abstract", + "href": "publications/articles/06_towards_ptychography_with_structured_illumination_.html#abstract", + "title": "Towards Ptychography with Structured Illumination, and a Derivative-Based Reconstruction Algorithm", "section": "Abstract", - "text": "Abstract\nShape-controlled synthesis of multiply twinned nanostructures is heavily emphasized in nanoscience, in large part due to the desire to control the size, shape, and terminating facets of metal nanoparticles for applications in catalysis. Direct control of the size and shape of solution-grown nanoparticles relies on an understanding of how synthetic parameters alter nanoparticle structures during synthesis. However, while outcome populations can be effectively studied with standard electron microscopy methods, transient structures that appear during some synthetic routes are difficult to study using conventional high resolution imaging methods due to the high complexity of the 3D nanostructures. Here, we have studied the prevalence of transient structures during growth of multiply twinned particles and employed atomic electron tomography to reveal the atomic-scale three-dimensional structure of a Pd nanoparticle undergoing a shape transition. By identifying over 20 000 atoms within the structure and classifying them according to their local crystallographic environment, we observe a multiply twinned structure consistent with a simultaneous successive twinning from a decahedral to icosahedral structure." + "text": "Abstract\n\nInstitut für Physik & IRIS Adlershof, Humboldt-Universität zu Berlin, Berlin, Germany 2. Max Planck Institute for the Structure and Dynamics of Matter, Center for Free Electron Laser Science, Hamburg, Germany 3. Ernst Ruska-Centre (ER-C) for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich, Jülich, Germany 4. CNR-Istituto Nanoscienze, Centro S3, Modena, Italy 5. Departments of Chemistry and Physics, University of Toronto, Toronto, Canada. * Corresponding author: vandenbroek@physik.hu-berlin.de" }, { - "objectID": "publications/articles/40_solving_complex_nanostructures_with_ptychographic_.html", - "href": "publications/articles/40_solving_complex_nanostructures_with_ptychographic_.html", - "title": "Solving complex nanostructures with ptychographic atomic electron tomography", + "objectID": "publications/articles/31_observation_of_formation_and_local_structures_of_m.html", + "href": "publications/articles/31_observation_of_formation_and_local_structures_of_m.html", + "title": "Observation of formation and local structures of metal-organic layers via complementary electron microscopy techniques", "section": "", - "text": "Solving complex nanostructures with ptychographic atomic electron tomography P. M. Pelz, S. M. Griffin, S. Stonemeyer, D. Popple, H. DeVyldere, P. Ercius, A. Zettl, M. C. Scott, C. Ophus Nature Communications 14" + "text": "Observation of formation and local structures of metal-organic layers via complementary electron microscopy techniques X. Peng, P. M. Pelz, Q. Zhang, P. Chen, L. Cao, Y. Zhang, H. Liao, H. Zheng, C. Wang, S. Sun, M. C. Scott Nature Communications 13" }, { - "objectID": "publications/articles/40_solving_complex_nanostructures_with_ptychographic_.html#citation-apa-7", - "href": "publications/articles/40_solving_complex_nanostructures_with_ptychographic_.html#citation-apa-7", - "title": "Solving complex nanostructures with ptychographic atomic electron tomography", + "objectID": "publications/articles/31_observation_of_formation_and_local_structures_of_m.html#citation-apa-7", + "href": "publications/articles/31_observation_of_formation_and_local_structures_of_m.html#citation-apa-7", + "title": "Observation of formation and local structures of metal-organic layers via complementary electron microscopy techniques", "section": "", - "text": "Solving complex nanostructures with ptychographic atomic electron tomography P. M. Pelz, S. M. Griffin, S. Stonemeyer, D. Popple, H. DeVyldere, P. Ercius, A. Zettl, M. C. Scott, C. Ophus Nature Communications 14" + "text": "Observation of formation and local structures of metal-organic layers via complementary electron microscopy techniques X. Peng, P. M. Pelz, Q. Zhang, P. Chen, L. Cao, Y. Zhang, H. Liao, H. Zheng, C. Wang, S. Sun, M. C. Scott Nature Communications 13" }, { - "objectID": "publications/articles/40_solving_complex_nanostructures_with_ptychographic_.html#abstract", - "href": "publications/articles/40_solving_complex_nanostructures_with_ptychographic_.html#abstract", - "title": "Solving complex nanostructures with ptychographic atomic electron tomography", + "objectID": "publications/articles/31_observation_of_formation_and_local_structures_of_m.html#abstract", + "href": "publications/articles/31_observation_of_formation_and_local_structures_of_m.html#abstract", + "title": "Observation of formation and local structures of metal-organic layers via complementary electron microscopy techniques", "section": "Abstract", - "text": "Abstract\nTransmission electron microscopy (TEM) is essential for determining atomic scale structures in structural biology and materials science. In structural biology, three-dimensional structures of proteins are routinely determined from thousands of identical particles using phase-contrast TEM. In materials science, three-dimensional atomic structures of complex nanomaterials have been determined using atomic electron tomography (AET). However, neither of these methods can determine the three-dimensional atomic structure of heterogeneous nanomaterials containing light elements. Here, we perform ptychographic electron tomography from 34.5 million diffraction patterns to reconstruct an atomic resolution tilt series of a double wall-carbon nanotube (DW-CNT) encapsulating a complex ZrTe sandwich structure. Class averaging the resulting tilt series images and subpixel localization of the atomic peaks reveals a Zr 11 Te 50 structure containing a previously unobserved ZrTe 2 phase in the core. The experimental realization of atomic resolution ptychographic electron tomography will allow for the structural determination of a wide range of beam-sensitive nanomaterials containing light elements." + "text": "Abstract\nMetal-organic layers (MOLs) are highly attractive for application in catalysis, separation, sensing and biomedicine, owing to their tunable framework structure. However, it is challenging to obtain comprehensive information about the formation and local structures of MOLs using standard electron microscopy methods due to serious damage under electron beam irradiation. Here, we investigate the growth processes and local structures of MOLs utilizing a combination of liquid-phase transmission electron microscopy, cryogenic electron microscopy and electron ptychography. Our results show a multistep formation process, where precursor clusters first form in solution, then they are complexed with ligands to form non-crystalline solids, followed by the arrangement of the cluster-ligand complex into crystalline sheets, with additional possible growth by the addition of clusters to surface edges. Moreover, high-resolution imaging allows us to identify missing clusters, dislocations, loop and flat surface terminations and ligand connectors in the MOLs. Our observations provide insights into controllable MOL crystal morphology, defect engineering, and surface modification, thus assisting novel MOL design and synthesis." }, { "objectID": "publications/articles/02_photo_double_ionization_of_ethylene_and_acetylene_.html", @@ -1505,109 +1484,130 @@ "text": "Abstract\n[Abstract will be added manually]" }, { - "objectID": "publications/articles/11_improving_the_speed_and_accuracy_of_large_scale_sc.html", - "href": "publications/articles/11_improving_the_speed_and_accuracy_of_large_scale_sc.html", - "title": "Improving the Speed and Accuracy of Large-scale Scanning Transmission Electron Microscopy (STEM) Electron Scattering Simulations", + "objectID": "publications/articles/54_kinetically_controlled_seed_mediated_synthesis_of_.html", + "href": "publications/articles/54_kinetically_controlled_seed_mediated_synthesis_of_.html", + "title": "Kinetically Controlled Seed-Mediated Synthesis of Colloidal Copper Nanotetrahedra with Intricate Internal Structure", "section": "", - "text": "Improving the Speed and Accuracy of Large-scale Scanning Transmission Electron Microscopy (STEM) Electron Scattering Simulations C. Ophus, H. Brown, L. R. Dacosta, P. Pelz, J. Schwartz, R. Yalisove, R. Hovden, J. Ciston, B. Savitzky Microscopy and Microanalysis 26, 456-458" + "text": "Kinetically Controlled Seed-Mediated Synthesis of Colloidal Copper Nanotetrahedra with Intricate Internal Structure S. Jeong, M. Wu, R. X. Skalla, B. Paranzino, A. Kichigin, B. Zhu, A. N. Butrum-Griffith, X. Zhan, Y. Zhong, C. Yan, P. Pelz, C. Ophus, S. Rechberger, Y. Wang, J. Chen, A. Yasuhara, Y. Aoyama, M. Kakefuda, K. A. Willets, E. Spiecker, X. Ye Journal of the American Chemical Society 147, 37622-37633" }, { - "objectID": "publications/articles/11_improving_the_speed_and_accuracy_of_large_scale_sc.html#citation-apa-7", - "href": "publications/articles/11_improving_the_speed_and_accuracy_of_large_scale_sc.html#citation-apa-7", - "title": "Improving the Speed and Accuracy of Large-scale Scanning Transmission Electron Microscopy (STEM) Electron Scattering Simulations", + "objectID": "publications/articles/54_kinetically_controlled_seed_mediated_synthesis_of_.html#citation-apa-7", + "href": "publications/articles/54_kinetically_controlled_seed_mediated_synthesis_of_.html#citation-apa-7", + "title": "Kinetically Controlled Seed-Mediated Synthesis of Colloidal Copper Nanotetrahedra with Intricate Internal Structure", "section": "", - "text": "Improving the Speed and Accuracy of Large-scale Scanning Transmission Electron Microscopy (STEM) Electron Scattering Simulations C. Ophus, H. Brown, L. R. Dacosta, P. Pelz, J. Schwartz, R. Yalisove, R. Hovden, J. Ciston, B. Savitzky Microscopy and Microanalysis 26, 456-458" + "text": "Kinetically Controlled Seed-Mediated Synthesis of Colloidal Copper Nanotetrahedra with Intricate Internal Structure S. Jeong, M. Wu, R. X. Skalla, B. Paranzino, A. Kichigin, B. Zhu, A. N. Butrum-Griffith, X. Zhan, Y. Zhong, C. Yan, P. Pelz, C. Ophus, S. Rechberger, Y. Wang, J. Chen, A. Yasuhara, Y. Aoyama, M. Kakefuda, K. A. Willets, E. Spiecker, X. Ye Journal of the American Chemical Society 147, 37622-37633" }, { - "objectID": "publications/articles/11_improving_the_speed_and_accuracy_of_large_scale_sc.html#abstract", - "href": "publications/articles/11_improving_the_speed_and_accuracy_of_large_scale_sc.html#abstract", - "title": "Improving the Speed and Accuracy of Large-scale Scanning Transmission Electron Microscopy (STEM) Electron Scattering Simulations", + "objectID": "publications/articles/54_kinetically_controlled_seed_mediated_synthesis_of_.html#abstract", + "href": "publications/articles/54_kinetically_controlled_seed_mediated_synthesis_of_.html#abstract", + "title": "Kinetically Controlled Seed-Mediated Synthesis of Colloidal Copper Nanotetrahedra with Intricate Internal Structure", "section": "Abstract", - "text": "Abstract\nIn a scanning transmission electron microscopy (STEM) experiment, a converged electron probe is typically scanned across a sample in a 2D grid of probe positions. At each STEM probe position, various signal channels can be recorded. These include imaging modes concerned primarily with electron scattering, such as annular bright field (ABF), annular dark field (ADF), or segmented-detector differential phase contrast (DPC), where we use a few monolithic detectors that measure the number of electrons which are scattered to various angular ranges to produce 2D image outputs. We can also perform spectroscopy, by either electron energy loss spectroscopy (EELS) on the forward scattered inelastic electrons, or by energy dispersive X-ray (EDX) spectroscopy where x-rays produced by the STEM probe interacting with the sample is used to perform chemical mapping, both of which produce 3D datasets. And finally, modern high-speed electron detectors also allow us to measure a full 2D image of the forwarddiffracted STEM probe at each probe position, producing a 4D dataset often referred to as a 4D-STEM experiment [1]. In many of these experiments, performing a quantitative analysis of the results requires us to perform electron scattering simulations for every position of the scanned electron probe." + "text": "Abstract\nThe controlled synthesis of non-noble metal nanocrystals, such as Cu, with well-defined shapes and internal structures remains a major challenge in nanochemistry, primarily due to the limited mechanistic understanding of their nucleation and growth pathways. Here, we report a heterometallic seed-mediated synthesis of monodisperse, size-tunable Cu truncated bitetrahedra (TBT) and tetrahedra using preformed Au nanocrystals as seeds. Systematic variation of the Au seed concentration enables precise control over nanocrystal size, while rapid reduction kinetics and sustained Cu monomer supply facilitate the evolution of TBT intermediates into well-defined Cu tetrahedra. Electron microscopy analyses reveal that the penta-twinned Au seeds induce asymmetric Cu overgrowth and initiate the formation of central twin boundaries in TBT. Four-dimensional scanning transmission electron microscopy of individual Cu tetrahedra at various tilt angles uncovers twinned layers on three facets and 5-fold axes along three edges. These structural features are rarely observed in previously reported noble-metal tetrahedra. The resulting Cu nanocrystals exhibit sharp, size-dependent localized surface plasmon resonance peaks in the visible range and demonstrate excellent activity in surface-enhanced Raman scattering. Near-field plasmon excitation mapping using electron energy-loss spectroscopy, supported by electromagnetic simulations, confirms distinct plasmon modes at individual Cu tetrahedra. This work highlights the potential of heterometallic twinned seeds for directing the synthesis of low-symmetry Cu nanocrystals and opens new opportunities for the design of non-noble-metal nanocrystals with tailored optical and catalytic properties." + }, + { + "objectID": "publications/articles/38_using_4d_stem_to_measure_the_nanoscale_structure_o.html", + "href": "publications/articles/38_using_4d_stem_to_measure_the_nanoscale_structure_o.html", + "title": "Using 4D-STEM to measure the nanoscale structure of materials in two and three dimensions", + "section": "", + "text": "Using 4D-STEM to measure the nanoscale structure of materials in two and three dimensions C. Ophus, P. M. Pelz, H. A. Sternlict, B. H. Savitzky, A. Rakowski, A. Bruefach, S. Ribet, M. S. Scott Acta Crystallographica Section A Foundations and Advances 79, C251-C251" + }, + { + "objectID": "publications/articles/38_using_4d_stem_to_measure_the_nanoscale_structure_o.html#citation-apa-7", + "href": "publications/articles/38_using_4d_stem_to_measure_the_nanoscale_structure_o.html#citation-apa-7", + "title": "Using 4D-STEM to measure the nanoscale structure of materials in two and three dimensions", + "section": "", + "text": "Using 4D-STEM to measure the nanoscale structure of materials in two and three dimensions C. Ophus, P. M. Pelz, H. A. Sternlict, B. H. Savitzky, A. Rakowski, A. Bruefach, S. Ribet, M. S. Scott Acta Crystallographica Section A Foundations and Advances 79, C251-C251" + }, + { + "objectID": "publications/articles/38_using_4d_stem_to_measure_the_nanoscale_structure_o.html#abstract", + "href": "publications/articles/38_using_4d_stem_to_measure_the_nanoscale_structure_o.html#abstract", + "title": "Using 4D-STEM to measure the nanoscale structure of materials in two and three dimensions", + "section": "Abstract", + "text": "Abstract\n[Abstract will be added manually]" }, { - "objectID": "publications/articles/38_high_resolution_3d_phase_contrast_imaging_beyond_t.html", - "href": "publications/articles/38_high_resolution_3d_phase_contrast_imaging_beyond_t.html", - "title": "High-resolution 3D phase-contrast imaging beyond the depth of field limit via ptychographic multi-slice electron tomography", + "objectID": "publications/articles/18_scalable_multicomponent_spectral_analysis_for_high.html", + "href": "publications/articles/18_scalable_multicomponent_spectral_analysis_for_high.html", + "title": "Scalable multicomponent spectral analysis for high-throughput data annotation", "section": "", - "text": "High-resolution 3D phase-contrast imaging beyond the depth of field limit via ptychographic multi-slice electron tomography A. V. Romanov, M. G. Cho, M. Scott, C. Ophus, P. Pelz arXiv (Cornell University)" + "text": "Scalable multicomponent spectral analysis for high-throughput dataannotation R. P. Xian, R. Ernstorfer, P. Pelz arXiv (Cornell University)" }, { - "objectID": "publications/articles/38_high_resolution_3d_phase_contrast_imaging_beyond_t.html#citation-apa-7", - "href": "publications/articles/38_high_resolution_3d_phase_contrast_imaging_beyond_t.html#citation-apa-7", - "title": "High-resolution 3D phase-contrast imaging beyond the depth of field limit via ptychographic multi-slice electron tomography", + "objectID": "publications/articles/18_scalable_multicomponent_spectral_analysis_for_high.html#citation-apa-7", + "href": "publications/articles/18_scalable_multicomponent_spectral_analysis_for_high.html#citation-apa-7", + "title": "Scalable multicomponent spectral analysis for high-throughput data annotation", "section": "", - "text": "High-resolution 3D phase-contrast imaging beyond the depth of field limit via ptychographic multi-slice electron tomography A. V. Romanov, M. G. Cho, M. Scott, C. Ophus, P. Pelz arXiv (Cornell University)" + "text": "Scalable multicomponent spectral analysis for high-throughput dataannotation R. P. Xian, R. Ernstorfer, P. Pelz arXiv (Cornell University)" }, { - "objectID": "publications/articles/38_high_resolution_3d_phase_contrast_imaging_beyond_t.html#abstract", - "href": "publications/articles/38_high_resolution_3d_phase_contrast_imaging_beyond_t.html#abstract", - "title": "High-resolution 3D phase-contrast imaging beyond the depth of field limit via ptychographic multi-slice electron tomography", + "objectID": "publications/articles/18_scalable_multicomponent_spectral_analysis_for_high.html#abstract", + "href": "publications/articles/18_scalable_multicomponent_spectral_analysis_for_high.html#abstract", + "title": "Scalable multicomponent spectral analysis for high-throughput data annotation", "section": "Abstract", "text": "Abstract\n[Abstract will be added manually]" }, { - "objectID": "publications/articles/35_virtual_imaging_enabled_by_scattering_matrix_recon.html", - "href": "publications/articles/35_virtual_imaging_enabled_by_scattering_matrix_recon.html", - "title": "Virtual imaging enabled by scattering matrix reconstruction from 4D scanning transmission electron microscopy", + "objectID": "publications/articles/36_controlled_self_assembly_of_gold_nanotetrahedra_in.html", + "href": "publications/articles/36_controlled_self_assembly_of_gold_nanotetrahedra_in.html", + "title": "Controlled Self-Assembly of Gold Nanotetrahedra into Quasicrystals and Complex Periodic Supracrystals", "section": "", - "text": "Virtual imaging enabled by scattering matrix reconstruction from 4D scanning transmission electron microscopy E. W. C. Terzoudis-Lumsden, T. C. Petersen, H. G. Brown, P. M. Pelz, C. Ophus, S. D. Findlay Acta Crystallographica Section A Foundations and Advances 79, C1092-C1092" + "text": "Controlled Self-Assembly of Gold Nanotetrahedra into Quasicrystals and Complex Periodic Supracrystals Y. Wang, J. Chen, R. Li, A. Götz, D. Drobek, T. Przybilla, S. Hübner, P. Pelz, L. Yang, B. A. Zubiri, E. Spiecker, M. Engel, X. Ye Journal of the American Chemical Society 145, 17902-17911" }, { - "objectID": "publications/articles/35_virtual_imaging_enabled_by_scattering_matrix_recon.html#citation-apa-7", - "href": "publications/articles/35_virtual_imaging_enabled_by_scattering_matrix_recon.html#citation-apa-7", - "title": "Virtual imaging enabled by scattering matrix reconstruction from 4D scanning transmission electron microscopy", + "objectID": "publications/articles/36_controlled_self_assembly_of_gold_nanotetrahedra_in.html#citation-apa-7", + "href": "publications/articles/36_controlled_self_assembly_of_gold_nanotetrahedra_in.html#citation-apa-7", + "title": "Controlled Self-Assembly of Gold Nanotetrahedra into Quasicrystals and Complex Periodic Supracrystals", "section": "", - "text": "Virtual imaging enabled by scattering matrix reconstruction from 4D scanning transmission electron microscopy E. W. C. Terzoudis-Lumsden, T. C. Petersen, H. G. Brown, P. M. Pelz, C. Ophus, S. D. Findlay Acta Crystallographica Section A Foundations and Advances 79, C1092-C1092" + "text": "Controlled Self-Assembly of Gold Nanotetrahedra into Quasicrystals and Complex Periodic Supracrystals Y. Wang, J. Chen, R. Li, A. Götz, D. Drobek, T. Przybilla, S. Hübner, P. Pelz, L. Yang, B. A. Zubiri, E. Spiecker, M. Engel, X. Ye Journal of the American Chemical Society 145, 17902-17911" }, { - "objectID": "publications/articles/35_virtual_imaging_enabled_by_scattering_matrix_recon.html#abstract", - "href": "publications/articles/35_virtual_imaging_enabled_by_scattering_matrix_recon.html#abstract", - "title": "Virtual imaging enabled by scattering matrix reconstruction from 4D scanning transmission electron microscopy", + "objectID": "publications/articles/36_controlled_self_assembly_of_gold_nanotetrahedra_in.html#abstract", + "href": "publications/articles/36_controlled_self_assembly_of_gold_nanotetrahedra_in.html#abstract", + "title": "Controlled Self-Assembly of Gold Nanotetrahedra into Quasicrystals and Complex Periodic Supracrystals", "section": "Abstract", - "text": "Abstract\ndepth resolution; and the inaccuracies shot noise introduces in our reconstructions. Using simulations, and leveraging a derived mathematical equivalence with a hypothetical direct phase-imaging technique, we begin by defining the depth resolution based on the characteristics of the probe when the sample is a weak phase object. Doped Si is then used as a case study to test the obfuscating effects of dynamical diffraction to the depth sensitive detection of dopants along the column. Varying the incident dose, we observe how the quality of our reconstructions change. Drawing on preliminary 4D-STEM experimental work using fast-readout direct electron detectors, we discuss some further limitations of practice." + "text": "Abstract\nThe self-assembly of shape-anisotropic nanocrystals into large-scale structures is a versatile and scalable approach to creating multifunctional materials. The tetrahedral geometry is ubiquitous in natural and manmade materials, yet regular tetrahedra present a formidable challenge in understanding their self-assembly behavior as they do not tile space. Here, we report diverse supracrystals from gold nanotetrahedra including the quasicrystal (QC) and the dimer packing predicted more than a decade ago and hitherto unknown phases. We solve the complex three-dimensional (3D) structure of the QC by a combination of electron microscopy, tomography, and synchrotron X-ray scattering. Nanotetrahedron vertex sharpness, surface ligands, and assembly conditions work in concert to regulate supracrystal structure. We also discover that the surface curvature of supracrystals can induce structural changes of the QC tiling and eventually, for small supracrystals with high curvature, stabilize a hexagonal approximant. Our findings bridge the gap between computational design and experimental realization of soft matter assemblies and demonstrate the importance of accurate control over nanocrystal attributes and the assembly conditions to realize increasingly complex nanopolyhedron supracrystals." }, { - "objectID": "publications/articles/42_information_transfer_improvement_by_parallax_corre.html", - "href": "publications/articles/42_information_transfer_improvement_by_parallax_corre.html", - "title": "Information Transfer Improvement by Parallax Correction and Ptychography Reconstruction Applied to Large-Area 4D STEM Experiments", + "objectID": "publications/articles/33_imaging_the_electron_charge_density_in_monolayer_m.html", + "href": "publications/articles/33_imaging_the_electron_charge_density_in_monolayer_m.html", + "title": "Imaging the electron charge density in monolayer MoS2 at the Ångstrom scale", "section": "", - "text": "Information Transfer Improvement by Parallax Correction and Ptychography Reconstruction Applied to Large-Area 4D STEM Experiments D. Stroppa, S. Ribet, G. Varnavides, C. Ophus, P. Pelz BIO Web of Conferences 129, 04027" + "text": "Imaging the electron charge density in monolayer MoS2 at the Ångstrom scale J. Martis, S. Susarla, A. Rayabharam, C. Su, T. Paule, P. Pelz, C. Huff, X. Xu, H. Li, M. Jaikissoon, V. Chen, E. Pop, K. Saraswat, A. Zettl, N. R. Aluru, R. Ramesh, P. Ercius, A. Majumdar Nature Communications 14" }, { - "objectID": "publications/articles/42_information_transfer_improvement_by_parallax_corre.html#citation-apa-7", - "href": "publications/articles/42_information_transfer_improvement_by_parallax_corre.html#citation-apa-7", - "title": "Information Transfer Improvement by Parallax Correction and Ptychography Reconstruction Applied to Large-Area 4D STEM Experiments", + "objectID": "publications/articles/33_imaging_the_electron_charge_density_in_monolayer_m.html#citation-apa-7", + "href": "publications/articles/33_imaging_the_electron_charge_density_in_monolayer_m.html#citation-apa-7", + "title": "Imaging the electron charge density in monolayer MoS2 at the Ångstrom scale", "section": "", - "text": "Information Transfer Improvement by Parallax Correction and Ptychography Reconstruction Applied to Large-Area 4D STEM Experiments D. Stroppa, S. Ribet, G. Varnavides, C. Ophus, P. Pelz BIO Web of Conferences 129, 04027" + "text": "Imaging the electron charge density in monolayer MoS2 at the Ångstrom scale J. Martis, S. Susarla, A. Rayabharam, C. Su, T. Paule, P. Pelz, C. Huff, X. Xu, H. Li, M. Jaikissoon, V. Chen, E. Pop, K. Saraswat, A. Zettl, N. R. Aluru, R. Ramesh, P. Ercius, A. Majumdar Nature Communications 14" }, { - "objectID": "publications/articles/42_information_transfer_improvement_by_parallax_corre.html#abstract", - "href": "publications/articles/42_information_transfer_improvement_by_parallax_corre.html#abstract", - "title": "Information Transfer Improvement by Parallax Correction and Ptychography Reconstruction Applied to Large-Area 4D STEM Experiments", + "objectID": "publications/articles/33_imaging_the_electron_charge_density_in_monolayer_m.html#abstract", + "href": "publications/articles/33_imaging_the_electron_charge_density_in_monolayer_m.html#abstract", + "title": "Imaging the electron charge density in monolayer MoS2 at the Ångstrom scale", "section": "Abstract", - "text": "Abstract\n[Abstract will be added manually]" + "text": "Abstract\nFour-dimensional scanning transmission electron microscopy (4D-STEM) has recently gained widespread attention for its ability to image atomic electric fields with sub-Ångstrom spatial resolution. These electric field maps represent the integrated effect of the nucleus, core electrons and valence electrons, and separating their contributions is non-trivial. In this paper, we utilized simultaneously acquired 4D-STEM center of mass (CoM) images and annular dark field (ADF) images to determine the projected electron charge density in monolayer MoS2. We evaluate the contributions of both the core electrons and the valence electrons to the derived electron charge density; however, due to blurring by the probe shape, the valence electron contribution forms a nearly featureless background while most of the spatial modulation comes from the core electrons. Our findings highlight the importance of probe shape in interpreting charge densities derived from 4D-STEM and the need for smaller electron probes." }, { - "objectID": "publications/articles/34_controlled_self_assembly_of_gold_nanotetrahedra_in.html", - "href": "publications/articles/34_controlled_self_assembly_of_gold_nanotetrahedra_in.html", - "title": "Controlled Self-Assembly of Gold Nanotetrahedra into Quasicrystals and Complex Periodic Supracrystals", + "objectID": "publications/articles/35_magnetic_phase_imaging_using_lorentz_near_field_el.html", + "href": "publications/articles/35_magnetic_phase_imaging_using_lorentz_near_field_el.html", + "title": "Magnetic Phase Imaging using Lorentz Near-field Electron Ptychography", "section": "", - "text": "Controlled Self-Assembly of Gold Nanotetrahedra into Quasicrystals and Complex Periodic Supracrystals Y. Wang, J. Chen, R. Li, A. Götz, D. Drobek, T. Przybilla, S. Hübner, P. Pelz, L. Yang, B. A. Zubiri, E. Spiecker, M. Engel, X. Ye Journal of the American Chemical Society 145, 17902-17911" + "text": "Magnetic Phase Imaging using Lorentz Near-field Electron Ptychography S. You, P. Lu, A. Kovács, T. Schachinger, F. Allars, R. E. Dunin‐Borkowski, A. Maiden arXiv (Cornell University)" }, { - "objectID": "publications/articles/34_controlled_self_assembly_of_gold_nanotetrahedra_in.html#citation-apa-7", - "href": "publications/articles/34_controlled_self_assembly_of_gold_nanotetrahedra_in.html#citation-apa-7", - "title": "Controlled Self-Assembly of Gold Nanotetrahedra into Quasicrystals and Complex Periodic Supracrystals", + "objectID": "publications/articles/35_magnetic_phase_imaging_using_lorentz_near_field_el.html#citation-apa-7", + "href": "publications/articles/35_magnetic_phase_imaging_using_lorentz_near_field_el.html#citation-apa-7", + "title": "Magnetic Phase Imaging using Lorentz Near-field Electron Ptychography", "section": "", - "text": "Controlled Self-Assembly of Gold Nanotetrahedra into Quasicrystals and Complex Periodic Supracrystals Y. Wang, J. Chen, R. Li, A. Götz, D. Drobek, T. Przybilla, S. Hübner, P. Pelz, L. Yang, B. A. Zubiri, E. Spiecker, M. Engel, X. Ye Journal of the American Chemical Society 145, 17902-17911" + "text": "Magnetic Phase Imaging using Lorentz Near-field Electron Ptychography S. You, P. Lu, A. Kovács, T. Schachinger, F. Allars, R. E. Dunin‐Borkowski, A. Maiden arXiv (Cornell University)" }, { - "objectID": "publications/articles/34_controlled_self_assembly_of_gold_nanotetrahedra_in.html#abstract", - "href": "publications/articles/34_controlled_self_assembly_of_gold_nanotetrahedra_in.html#abstract", - "title": "Controlled Self-Assembly of Gold Nanotetrahedra into Quasicrystals and Complex Periodic Supracrystals", + "objectID": "publications/articles/35_magnetic_phase_imaging_using_lorentz_near_field_el.html#abstract", + "href": "publications/articles/35_magnetic_phase_imaging_using_lorentz_near_field_el.html#abstract", + "title": "Magnetic Phase Imaging using Lorentz Near-field Electron Ptychography", "section": "Abstract", - "text": "Abstract\nThe self-assembly of shape-anisotropic nanocrystals into large-scale structures is a versatile and scalable approach to creating multifunctional materials. The tetrahedral geometry is ubiquitous in natural and manmade materials, yet regular tetrahedra present a formidable challenge in understanding their self-assembly behavior as they do not tile space. Here, we report diverse supracrystals from gold nanotetrahedra including the quasicrystal (QC) and the dimer packing predicted more than a decade ago and hitherto unknown phases. We solve the complex three-dimensional (3D) structure of the QC by a combination of electron microscopy, tomography, and synchrotron X-ray scattering. Nanotetrahedron vertex sharpness, surface ligands, and assembly conditions work in concert to regulate supracrystal structure. We also discover that the surface curvature of supracrystals can induce structural changes of the QC tiling and eventually, for small supracrystals with high curvature, stabilize a hexagonal approximant. Our findings bridge the gap between computational design and experimental realization of soft matter assemblies and demonstrate the importance of accurate control over nanocrystal attributes and the assembly conditions to realize increasingly complex nanopolyhedron supracrystals." + "text": "Abstract\n[Abstract will be added manually]" }, { "objectID": "publications/articles/17_scattering_matrix_determination_in_crystalline_mat.html", @@ -1631,46 +1631,46 @@ "text": "Abstract\nRecent work has revived interest in the scattering matrix formulation of electron scattering in transmission electron microscopy as a stepping stone toward atomic-resolution structure determination in the presence of multiple scattering. We discuss ways of visualizing the scattering matrix that make its properties clear. Through a simulation-based case study incorporating shot noise, we shown how regularizing on this continuity enables the scattering matrix to be reconstructed from 4D scanning transmission electron microscopy (STEM) measurements from a single defocus value. Intriguingly, for crystalline samples, this process also yields the sample thickness to nanometer accuracy with no a priori knowledge about the sample structure. The reconstruction quality is gauged by using the reconstructed scattering matrix to simulate STEM images at defocus values different from that of the data from which it was reconstructed." }, { - "objectID": "publications/articles/30_observation_of_formation_and_local_structures_of_m.html", - "href": "publications/articles/30_observation_of_formation_and_local_structures_of_m.html", - "title": "Observation of formation and local structures of metal-organic layers via complementary electron microscopy techniques", + "objectID": "publications/articles/49_multi_slice_electron_ptychographic_tomography_for_.html", + "href": "publications/articles/49_multi_slice_electron_ptychographic_tomography_for_.html", + "title": "Multi-slice electron ptychographic tomography for three-dimensional phase-contrast microscopy beyond the depth of focus limits", "section": "", - "text": "Observation of formation and local structures of metal-organic layers via complementary electron microscopy techniques X. Peng, P. M. Pelz, Q. Zhang, P. Chen, L. Cao, Y. Zhang, H. Liao, H. Zheng, C. Wang, S. Sun, M. C. Scott Nature Communications 13" + "text": "Multi-slice electron ptychographic tomography for three-dimensional phase-contrast microscopy beyond the depth of focus limits A. Romanov, M. G. Cho, M. C. Scott, P. Pelz Journal of Physics: Materials 8, 015005" }, { - "objectID": "publications/articles/30_observation_of_formation_and_local_structures_of_m.html#citation-apa-7", - "href": "publications/articles/30_observation_of_formation_and_local_structures_of_m.html#citation-apa-7", - "title": "Observation of formation and local structures of metal-organic layers via complementary electron microscopy techniques", + "objectID": "publications/articles/49_multi_slice_electron_ptychographic_tomography_for_.html#citation-apa-7", + "href": "publications/articles/49_multi_slice_electron_ptychographic_tomography_for_.html#citation-apa-7", + "title": "Multi-slice electron ptychographic tomography for three-dimensional phase-contrast microscopy beyond the depth of focus limits", "section": "", - "text": "Observation of formation and local structures of metal-organic layers via complementary electron microscopy techniques X. Peng, P. M. Pelz, Q. Zhang, P. Chen, L. Cao, Y. Zhang, H. Liao, H. Zheng, C. Wang, S. Sun, M. C. Scott Nature Communications 13" + "text": "Multi-slice electron ptychographic tomography for three-dimensional phase-contrast microscopy beyond the depth of focus limits A. Romanov, M. G. Cho, M. C. Scott, P. Pelz Journal of Physics: Materials 8, 015005" }, { - "objectID": "publications/articles/30_observation_of_formation_and_local_structures_of_m.html#abstract", - "href": "publications/articles/30_observation_of_formation_and_local_structures_of_m.html#abstract", - "title": "Observation of formation and local structures of metal-organic layers via complementary electron microscopy techniques", + "objectID": "publications/articles/49_multi_slice_electron_ptychographic_tomography_for_.html#abstract", + "href": "publications/articles/49_multi_slice_electron_ptychographic_tomography_for_.html#abstract", + "title": "Multi-slice electron ptychographic tomography for three-dimensional phase-contrast microscopy beyond the depth of focus limits", "section": "Abstract", - "text": "Abstract\nMetal-organic layers (MOLs) are highly attractive for application in catalysis, separation, sensing and biomedicine, owing to their tunable framework structure. However, it is challenging to obtain comprehensive information about the formation and local structures of MOLs using standard electron microscopy methods due to serious damage under electron beam irradiation. Here, we investigate the growth processes and local structures of MOLs utilizing a combination of liquid-phase transmission electron microscopy, cryogenic electron microscopy and electron ptychography. Our results show a multistep formation process, where precursor clusters first form in solution, then they are complexed with ligands to form non-crystalline solids, followed by the arrangement of the cluster-ligand complex into crystalline sheets, with additional possible growth by the addition of clusters to surface edges. Moreover, high-resolution imaging allows us to identify missing clusters, dislocations, loop and flat surface terminations and ligand connectors in the MOLs. Our observations provide insights into controllable MOL crystal morphology, defect engineering, and surface modification, thus assisting novel MOL design and synthesis." + "text": "Abstract\nElectron ptychography is a powerful computational method for atomic-resolution imaging with high contrast for weakly and strongly scattering elements. Modern algorithms coupled with fast and efficient detectors allow imaging specimens with tens of nanometers thicknesses with sub-0.5 Ångstrom lateral resolution. However, the axial resolution in these approaches is currently limited to a few nanometers, limiting their ability to solve novel atomic structures ab initio. Here, we experimentally demonstrate multi-slice ptychographic electron tomography, which allows atomic resolution three-dimensional phase-contrast imaging in a volume surpassing the depth of field limits. We reconstruct tilt-series 4D-STEM measurements of a Co 3 O 4 nanocube, yielding 2 Å axial and 0.7 Å transverse resolution in a reconstructed volume of ( 18.2 nm ) 3 . Our results demonstrate a 13.5-fold improvement in axial resolution compared to multi-slice ptychography while retaining the atomic lateral resolution and the capability to image volumes beyond the depth of field limit. Multi-slice ptychographic electron tomography significantly expands the volume of materials accessible using high-resolution electron microscopy. We discuss further experimental and algorithmic improvements necessary to also resolve single weakly scattering atoms in 3D." }, { - "objectID": "publications/articles/20_real_time_interactive_ptychography_from_electron_e.html", - "href": "publications/articles/20_real_time_interactive_ptychography_from_electron_e.html", - "title": "Real-time interactive ptychography from electron event representation data", + "objectID": "publications/articles/56_transverse_quantum_state_characterization_of_progr.html", + "href": "publications/articles/56_transverse_quantum_state_characterization_of_progr.html", + "title": "Transverse quantum-state characterization of programmable electron optics", "section": "", - "text": "Real-time interactive ptychography from electron event representation data P. Pelz, P. Ercius, C. Ophus, I. Johnson, M. Scott Microscopy and Microanalysis 27, 188-189" + "text": "Transverse quantum-state characterization of programmable electron optics S. You, P. Rosi, E. Rotunno, A. Roncaglia, L. Belsito, A. H. Tavabi, R. E. Dunin-Borkowski, V. Grillo, P. M. Pelz arXiv (Cornell University)" }, { - "objectID": "publications/articles/20_real_time_interactive_ptychography_from_electron_e.html#citation-apa-7", - "href": "publications/articles/20_real_time_interactive_ptychography_from_electron_e.html#citation-apa-7", - "title": "Real-time interactive ptychography from electron event representation data", + "objectID": "publications/articles/56_transverse_quantum_state_characterization_of_progr.html#citation-apa-7", + "href": "publications/articles/56_transverse_quantum_state_characterization_of_progr.html#citation-apa-7", + "title": "Transverse quantum-state characterization of programmable electron optics", "section": "", - "text": "Real-time interactive ptychography from electron event representation data P. Pelz, P. Ercius, C. Ophus, I. Johnson, M. Scott Microscopy and Microanalysis 27, 188-189" + "text": "Transverse quantum-state characterization of programmable electron optics S. You, P. Rosi, E. Rotunno, A. Roncaglia, L. Belsito, A. H. Tavabi, R. E. Dunin-Borkowski, V. Grillo, P. M. Pelz arXiv (Cornell University)" }, { - "objectID": "publications/articles/20_real_time_interactive_ptychography_from_electron_e.html#abstract", - "href": "publications/articles/20_real_time_interactive_ptychography_from_electron_e.html#abstract", - "title": "Real-time interactive ptychography from electron event representation data", + "objectID": "publications/articles/56_transverse_quantum_state_characterization_of_progr.html#abstract", + "href": "publications/articles/56_transverse_quantum_state_characterization_of_progr.html#abstract", + "title": "Transverse quantum-state characterization of programmable electron optics", "section": "Abstract", - "text": "Abstract\nThe arrival of direct electron detectors (DEDs) with high frame rates in the field of scanning transmission electron microscopy (TEM) has enabled many experimental techniques that require collection of a full diffraction pattern at each scan position, a field which is subsumed under the name four-dimensional scanning transmission electron microscopy (4D-STEM). DED frame rates approaching 100 kHz require data transmission rates and data storage capabilities that exceed those of the commonly available computing infrastructures. Current commercial DEDs allow the user to make compromises in pixel bit depth, detector binning, or windowing to reduce the per-frame file size and allow higher frame rates. This change in detector specifications requires decisions to be made before data acquisition that may reduce or lose information that could have been advantageous during data analysis." + "text": "Abstract\n[Abstract will be added manually]" }, { "objectID": "publications/articles/13_reconstructing_the_scattering_matrix_from_scanning.html", @@ -1694,25 +1694,25 @@ "text": "Abstract\n[Abstract will be added manually]" }, { - "objectID": "publications/articles/24_prismatic_20_simulation_software_for_scanning_and_.html", - "href": "publications/articles/24_prismatic_20_simulation_software_for_scanning_and_.html", - "title": "Prismatic 2.0 – Simulation software for scanning and high resolution transmission electron microscopy (STEM and HRTEM)", + "objectID": "publications/articles/50_near_isotropic_sub_ångstrom_3d_resolution_phase_co.html", + "href": "publications/articles/50_near_isotropic_sub_ångstrom_3d_resolution_phase_co.html", + "title": "Near-isotropic sub-Ångstrom 3d resolution phase contrast imaging achieved by end-to-end ptychographic electron tomography", "section": "", - "text": "Prismatic 2.0 – Simulation software for scanning and high resolution transmission electron microscopy (STEM and HRTEM) L. R. DaCosta, H. G. Brown, P. M. Pelz, A. Rakowski, N. Barber, P. O’Donovan, P. McBean, L. Jones, J. Ciston, M. Scott, C. Ophus Micron 151, 103141" + "text": "Near-isotropic sub-Ångstrom 3d resolution phase contrast imaging achieved by end-to-end ptychographic electron tomography S. You, A. Romanov, P. M. Pelz Physica Scripta 100, 015404" }, { - "objectID": "publications/articles/24_prismatic_20_simulation_software_for_scanning_and_.html#citation-apa-7", - "href": "publications/articles/24_prismatic_20_simulation_software_for_scanning_and_.html#citation-apa-7", - "title": "Prismatic 2.0 – Simulation software for scanning and high resolution transmission electron microscopy (STEM and HRTEM)", + "objectID": "publications/articles/50_near_isotropic_sub_ångstrom_3d_resolution_phase_co.html#citation-apa-7", + "href": "publications/articles/50_near_isotropic_sub_ångstrom_3d_resolution_phase_co.html#citation-apa-7", + "title": "Near-isotropic sub-Ångstrom 3d resolution phase contrast imaging achieved by end-to-end ptychographic electron tomography", "section": "", - "text": "Prismatic 2.0 – Simulation software for scanning and high resolution transmission electron microscopy (STEM and HRTEM) L. R. DaCosta, H. G. Brown, P. M. Pelz, A. Rakowski, N. Barber, P. O’Donovan, P. McBean, L. Jones, J. Ciston, M. Scott, C. Ophus Micron 151, 103141" + "text": "Near-isotropic sub-Ångstrom 3d resolution phase contrast imaging achieved by end-to-end ptychographic electron tomography S. You, A. Romanov, P. M. Pelz Physica Scripta 100, 015404" }, { - "objectID": "publications/articles/24_prismatic_20_simulation_software_for_scanning_and_.html#abstract", - "href": "publications/articles/24_prismatic_20_simulation_software_for_scanning_and_.html#abstract", - "title": "Prismatic 2.0 – Simulation software for scanning and high resolution transmission electron microscopy (STEM and HRTEM)", + "objectID": "publications/articles/50_near_isotropic_sub_ångstrom_3d_resolution_phase_co.html#abstract", + "href": "publications/articles/50_near_isotropic_sub_ångstrom_3d_resolution_phase_co.html#abstract", + "title": "Near-isotropic sub-Ångstrom 3d resolution phase contrast imaging achieved by end-to-end ptychographic electron tomography", "section": "Abstract", - "text": "Abstract\nScanning transmission electron microscopy (STEM), where a converged electron probe is scanned over a sample’s surface and an imaging, diffraction, or spectroscopic signal is measured as a function of probe position, is an extremely powerful tool for materials characterization. The widespread adoption of hardware aberration correction, direct electron detectors, and computational imaging methods have made STEM one of the most important tools for atomic-resolution materials science. Many of these imaging methods rely on accurate imaging and diffraction simulations in order to interpret experimental results. However, STEM simulations have traditionally required large calculation times, as modeling the electron scattering requires a separate simulation for each of the typically millions of probe positions. We have created the Prismatic simulation code for fast simulation of STEM experiments with support for multi-CPU and multi-GPU (graphics processing unit) systems, using both the conventional multislice and our recently-introduced PRISM method. In this paper, we introduce Prismatic version 2.0, which adds many new algorithmic improvements, an updated graphical user interface (GUI), post-processing of simulation data, and additional operating modes such as plane-wave TEM. We review various aspects of the simulation methods and codes in detail and provide various simulation examples. Prismatic 2.0 is freely available both as an open-source package that can be run using a C++ or Python command line interface, or GUI, as well within a Docker container environment." + "text": "Abstract\nThree-dimensional atomic resolution imaging using transmission electron microscopes is a unique capability that requires challenging experiments. Linear electron tomography methods are limited by the missing wedge effect, requiring a high tilt range. Multislice ptychography can achieve deep sub-Ångstrom resolution in the transverse direction, but depth resolution is limited to 2 to 3 nanometers. In this paper, we propose and demonstrate an end-to-end approach to reconstructing the electrostatic potential volume of the sample directly from the 4D-STEM datasets. End-to-end multislice ptychographic tomography recovers several slices at each tomography tilt angle and compensates for the missing wedge effect. The algorithm is initially tested in simulation with a Pt@Al2O3 core–shell nanoparticle, where both heavy and light atoms are recovered in 3D from an unaligned 4D-STEM tilt series with a restricted tilt range of 90 degrees. We also demonstrate the algorithm experimentally, recovering a Te nanoparticle with sub-Ångstrom resolution." }, { "objectID": "publications/articles/15_a_fast_algorithm_for_scanning_transmission_electro.html", @@ -1736,152 +1736,257 @@ "text": "Abstract\nScanning transmission electron microscopy (STEM) is an extremely versatile method for studying materials on the atomic scale. Many STEM experiments are supported or validated with electron scattering simulations. However, using the conventional multislice algorithm to perform these simulations can require extremely large calculation times, particularly for experiments with millions of probe positions as each probe position must be simulated independently. Recently, the plane-wave reciprocal-space interpolated scattering matrix (PRISM) algorithm was developed to reduce calculation times for large STEM simulations. Here, we introduce a new method for STEM simulation: partitioning of the STEM probe into “beamlets,” given by a natural neighbor interpolation of the parent beams. This idea is compatible with PRISM simulations and can lead to even larger improvements in simulation time, as well requiring significantly less computer random access memory (RAM). We have performed various simulations to demonstrate the advantages and disadvantages of partitioned PRISM STEM simulations. We find that this new algorithm is particularly useful for 4D-STEM simulations of large fields of view. We also provide a reference implementation of the multislice, PRISM, and partitioned PRISM algorithms." }, { - "objectID": "publications/articles/03_low_dose_cryo_electron_ptychography_via_non_convex.html", - "href": "publications/articles/03_low_dose_cryo_electron_ptychography_via_non_convex.html", - "title": "Low-dose cryo electron ptychography via non-convex Bayesian optimization", + "objectID": "publications/articles/14_a_single_projection_three_dimensional_reconstructi.html", + "href": "publications/articles/14_a_single_projection_three_dimensional_reconstructi.html", + "title": "A single-projection three-dimensional reconstruction algorithm for scanning transmission electron microscopy data", "section": "", - "text": "Low-dose cryo electron ptychography via non-convex Bayesian optimization P. M. Pelz, W. X. Qiu, R. Bücker, G. Kassier, R. J. D. Miller Scientific Reports 7" + "text": "A single-projection three-dimensional reconstruction algorithm for scanning transmission electron microscopy data H. G. Brown, P. Pelz, S. Hsu, Z. Zhang, R. Ramesh, K. Inzani, E. Sheridan, S. M. Griffin, M. Schloz, T. C. Pekin, C. T. Koch, S. D. Findlay, L. J. Allen, M. Scott, C. Ophus, J. Ciston arXiv (Cornell University)" }, { - "objectID": "publications/articles/03_low_dose_cryo_electron_ptychography_via_non_convex.html#citation-apa-7", - "href": "publications/articles/03_low_dose_cryo_electron_ptychography_via_non_convex.html#citation-apa-7", - "title": "Low-dose cryo electron ptychography via non-convex Bayesian optimization", + "objectID": "publications/articles/14_a_single_projection_three_dimensional_reconstructi.html#citation-apa-7", + "href": "publications/articles/14_a_single_projection_three_dimensional_reconstructi.html#citation-apa-7", + "title": "A single-projection three-dimensional reconstruction algorithm for scanning transmission electron microscopy data", "section": "", - "text": "Low-dose cryo electron ptychography via non-convex Bayesian optimization P. M. Pelz, W. X. Qiu, R. Bücker, G. Kassier, R. J. D. Miller Scientific Reports 7" + "text": "A single-projection three-dimensional reconstruction algorithm for scanning transmission electron microscopy data H. G. Brown, P. Pelz, S. Hsu, Z. Zhang, R. Ramesh, K. Inzani, E. Sheridan, S. M. Griffin, M. Schloz, T. C. Pekin, C. T. Koch, S. D. Findlay, L. J. Allen, M. Scott, C. Ophus, J. Ciston arXiv (Cornell University)" }, { - "objectID": "publications/articles/03_low_dose_cryo_electron_ptychography_via_non_convex.html#abstract", - "href": "publications/articles/03_low_dose_cryo_electron_ptychography_via_non_convex.html#abstract", - "title": "Low-dose cryo electron ptychography via non-convex Bayesian optimization", + "objectID": "publications/articles/14_a_single_projection_three_dimensional_reconstructi.html#abstract", + "href": "publications/articles/14_a_single_projection_three_dimensional_reconstructi.html#abstract", + "title": "A single-projection three-dimensional reconstruction algorithm for scanning transmission electron microscopy data", "section": "Abstract", - "text": "Abstract\nElectron ptychography has seen a recent surge of interest for phase sensitive imaging at atomic or near-atomic resolution. However, applications are so far mainly limited to radiation-hard samples, because the required doses are too high for imaging biological samples at high resolution. We propose the use of non-convex Bayesian optimization to overcome this problem, and show via numerical simulations that the dose required for successful reconstruction can be reduced by two orders of magnitude compared to previous experiments. As an important application we suggest to use this method for imaging single biological macromolecules at cryogenic temperatures and demonstrate 2D single-particle reconstructions from simulated data with a resolution up to 5.4 Å at a dose of 20e − /Å2. When averaging over only 30 low-dose datasets, a 2D resolution around 3.5 Å is possible for macromolecular complexes even below 100 kDa. With its independence from the microscope transfer function, direct recovery of phase contrast, and better scaling of signal-to-noise ratio, low-dose cryo electron ptychography may become a promising alternative to Zernike phase-contrast microscopy." + "text": "Abstract\n[Abstract will be added manually]" }, { - "objectID": "publications/articles/07_engineering_chiral_structures_through_strain_relea.html", - "href": "publications/articles/07_engineering_chiral_structures_through_strain_relea.html", - "title": "Engineering Chiral Structures Through Strain Release: Electron Tomography Study of Twisted Nanowires", + "objectID": "publications/articles/08_3d_imaging_using_haadf_stem_and_hrtem_atomic_elect.html", + "href": "publications/articles/08_3d_imaging_using_haadf_stem_and_hrtem_atomic_elect.html", + "title": "3D Imaging Using HAADF-STEM and HRTEM Atomic Electron Tomography", "section": "", - "text": "Engineering Chiral Structures Through Strain Release: Electron Tomography Study of Twisted Nanowires X. Song, A. Bruefach, P. M. Pelz, H. Devyldere, M. Scott Microscopy and Microanalysis 25, 1804-1805" + "text": "3D Imaging Using HAADF-STEM and HRTEM Atomic Electron Tomography C. Ophus, D. Ren, J. Zhou, H. Devyldere, M. Chen, P. M. Pelz, P. Ercius, J. Miao, M. Scott, L. Waller Microscopy and Microanalysis 25, 394-395" }, { - "objectID": "publications/articles/07_engineering_chiral_structures_through_strain_relea.html#citation-apa-7", - "href": "publications/articles/07_engineering_chiral_structures_through_strain_relea.html#citation-apa-7", - "title": "Engineering Chiral Structures Through Strain Release: Electron Tomography Study of Twisted Nanowires", + "objectID": "publications/articles/08_3d_imaging_using_haadf_stem_and_hrtem_atomic_elect.html#citation-apa-7", + "href": "publications/articles/08_3d_imaging_using_haadf_stem_and_hrtem_atomic_elect.html#citation-apa-7", + "title": "3D Imaging Using HAADF-STEM and HRTEM Atomic Electron Tomography", "section": "", - "text": "Engineering Chiral Structures Through Strain Release: Electron Tomography Study of Twisted Nanowires X. Song, A. Bruefach, P. M. Pelz, H. Devyldere, M. Scott Microscopy and Microanalysis 25, 1804-1805" + "text": "3D Imaging Using HAADF-STEM and HRTEM Atomic Electron Tomography C. Ophus, D. Ren, J. Zhou, H. Devyldere, M. Chen, P. M. Pelz, P. Ercius, J. Miao, M. Scott, L. Waller Microscopy and Microanalysis 25, 394-395" }, { - "objectID": "publications/articles/07_engineering_chiral_structures_through_strain_relea.html#abstract", - "href": "publications/articles/07_engineering_chiral_structures_through_strain_relea.html#abstract", - "title": "Engineering Chiral Structures Through Strain Release: Electron Tomography Study of Twisted Nanowires", + "objectID": "publications/articles/08_3d_imaging_using_haadf_stem_and_hrtem_atomic_elect.html#abstract", + "href": "publications/articles/08_3d_imaging_using_haadf_stem_and_hrtem_atomic_elect.html#abstract", + "title": "3D Imaging Using HAADF-STEM and HRTEM Atomic Electron Tomography", "section": "Abstract", - "text": "Abstract\nDefects and strain play a strong role in material functionality on the nanoscale, but they are also important in directing the growth of many nanomaterials. For example, an axial screw dislocation is behind the asymmetric growth that creates many types of nanowires [1, 2]. In general, asymmetric nanomaterials are of technological interest due to their novel optoelectronic properties. Beyond individual properties, chiral and helical structures allow one to tune parameters such as diameter, helix pitch and spacing between individual helices. These hierarchical length scales create the capability to encode complementary properties in a single nanomaterial, such as tuning catalytic and optical properties for idealized photocatalysis. Coupled optical and plasmonic properties depend on material spacing, so the ability to create interlocking and tunable morphologies of helical structures holds great promise. However, before these materials can be widely implemented in technological applications, a better understanding of the factors that govern their synthetic routes must be developed." + "text": "Abstract\n\nNCEM, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, USA. 2. Dept. of Electrical Engineering and Computer Sciences, Univ. of California Berkeley, Berkeley, USA. 3. Dept. of Physics and Astronomy, Univ. of California Los Angeles, Los Angeles, USA. 4. Dept. of Materials Science and Engineering, Univ. of California Berkeley, Berkeley, USA. * Corresponding author: cophus@gmail.com" }, { - "objectID": "publications/articles/31_resolution_of_virtual_depth_sectioning_from_four_d.html", - "href": "publications/articles/31_resolution_of_virtual_depth_sectioning_from_four_d.html", - "title": "Resolution of Virtual Depth Sectioning from Four-Dimensional Scanning Transmission Electron Microscopy", + "objectID": "publications/articles/48_the_4d_camera_an_87_khz_direct_electron_detector_f.html", + "href": "publications/articles/48_the_4d_camera_an_87_khz_direct_electron_detector_f.html", + "title": "The 4D Camera: An 87 kHz Direct Electron Detector for Scanning/Transmission Electron Microscopy", "section": "", - "text": "Resolution of Virtual Depth Sectioning from Four-Dimensional Scanning Transmission Electron Microscopy E. W. C. Terzoudis-Lumsden, T. C. Petersen, H. G. Brown, P. M. Pelz, C. Ophus, S. D. Findlay Microscopy and Microanalysis 29, 1409-1421" + "text": "The 4D Camera: An 87 kHz Direct Electron Detector for Scanning/Transmission Electron Microscopy P. Ercius, I. J. Johnson, P. Pelz, B. H. Savitzky, L. Hughes, H. G. Brown, S. E. Zeltmann, S. Hsu, C. C. S. Pedroso, B. E. Cohen, R. Ramesh, D. Paul, J. M. Joseph, T. Stezelberger, C. Czarnik, M. Lent, E. Fong, J. Ciston, M. C. Scott, C. Ophus, A. M. Minor, P. Denes Microscopy and Microanalysis 30, 903-912" }, { - "objectID": "publications/articles/31_resolution_of_virtual_depth_sectioning_from_four_d.html#citation-apa-7", - "href": "publications/articles/31_resolution_of_virtual_depth_sectioning_from_four_d.html#citation-apa-7", - "title": "Resolution of Virtual Depth Sectioning from Four-Dimensional Scanning Transmission Electron Microscopy", + "objectID": "publications/articles/48_the_4d_camera_an_87_khz_direct_electron_detector_f.html#citation-apa-7", + "href": "publications/articles/48_the_4d_camera_an_87_khz_direct_electron_detector_f.html#citation-apa-7", + "title": "The 4D Camera: An 87 kHz Direct Electron Detector for Scanning/Transmission Electron Microscopy", "section": "", - "text": "Resolution of Virtual Depth Sectioning from Four-Dimensional Scanning Transmission Electron Microscopy E. W. C. Terzoudis-Lumsden, T. C. Petersen, H. G. Brown, P. M. Pelz, C. Ophus, S. D. Findlay Microscopy and Microanalysis 29, 1409-1421" + "text": "The 4D Camera: An 87 kHz Direct Electron Detector for Scanning/Transmission Electron Microscopy P. Ercius, I. J. Johnson, P. Pelz, B. H. Savitzky, L. Hughes, H. G. Brown, S. E. Zeltmann, S. Hsu, C. C. S. Pedroso, B. E. Cohen, R. Ramesh, D. Paul, J. M. Joseph, T. Stezelberger, C. Czarnik, M. Lent, E. Fong, J. Ciston, M. C. Scott, C. Ophus, A. M. Minor, P. Denes Microscopy and Microanalysis 30, 903-912" }, { - "objectID": "publications/articles/31_resolution_of_virtual_depth_sectioning_from_four_d.html#abstract", - "href": "publications/articles/31_resolution_of_virtual_depth_sectioning_from_four_d.html#abstract", - "title": "Resolution of Virtual Depth Sectioning from Four-Dimensional Scanning Transmission Electron Microscopy", + "objectID": "publications/articles/48_the_4d_camera_an_87_khz_direct_electron_detector_f.html#abstract", + "href": "publications/articles/48_the_4d_camera_an_87_khz_direct_electron_detector_f.html#abstract", + "title": "The 4D Camera: An 87 kHz Direct Electron Detector for Scanning/Transmission Electron Microscopy", "section": "Abstract", - "text": "Abstract\nOne approach to three-dimensional structure determination using the wealth of scattering data in four-dimensional (4D) scanning transmission electron microscopy (STEM) is the parallax method proposed by Ophus et al. (2019. Advanced phase reconstruction methods enabled by 4D scanning transmission electron microscopy, Microsc Microanal25, 10–11), which determines the scattering matrix and uses it to synthesize a virtual depth-sectioning reconstruction of the sample structure. Drawing on an equivalence with a hypothetical confocal imaging mode, we derive contrast transfer and point spread functions for this parallax method applied to weakly scattering objects, showing them identical to earlier depth-sectioning STEM modes when only bright field signal is used, but that improved depth resolution is possible if dark field signal can be used. Through a simulation-based study of doped Si, we show that this depth resolution is preserved for thicker samples, explore the impact of shot noise on the parallax reconstructions, discuss challenges to making use of dark field signal, and identify cases where the interpretation of the parallax reconstruction breaks down." + "text": "Abstract\nWe describe the development, operation, and application of the 4D Camera—a 576 by 576 pixel active pixel sensor for scanning/transmission electron microscopy which operates at 87,000 Hz. The detector generates data at ∼480 Gbit/s which is captured by dedicated receiver computers with a parallelized software infrastructure that has been implemented to process the resulting 10–700 Gigabyte-sized raw datasets. The back illuminated detector provides the ability to detect single electron events at accelerating voltages from 30 to 300 kV. Through electron counting, the resulting sparse data sets are reduced in size by 10–300× compared to the raw data, and open-source sparsity-based processing algorithms offer rapid data analysis. The high frame rate allows for large and complex scanning diffraction experiments to be accomplished with typical scanning transmission electron microscopy scanning parameters." }, { - "objectID": "publications/articles/50_kinetically_controlled_seed_mediated_synthesis_of_.html", - "href": "publications/articles/50_kinetically_controlled_seed_mediated_synthesis_of_.html", - "title": "Kinetically Controlled Seed-Mediated Synthesis of Colloidal Copper Nanotetrahedra with Intricate Internal Structure", + "objectID": "publications/articles/16_py4dstem_a_software_package_for_four_dimensional_s.html", + "href": "publications/articles/16_py4dstem_a_software_package_for_four_dimensional_s.html", + "title": "Py4DSTEM: A Software Package for Four-Dimensional Scanning Transmission Electron Microscopy Data Analysis", "section": "", - "text": "Kinetically Controlled Seed-Mediated Synthesis of Colloidal Copper Nanotetrahedra with Intricate Internal Structure S. Jeong, M. Wu, R. X. Skalla, B. Paranzino, A. Kichigin, B. Zhu, A. N. Butrum-Griffith, X. Zhan, Y. Zhong, C. Yan, P. Pelz, C. Ophus, S. Rechberger, Y. Wang, J. Chen, A. Yasuhara, Y. Aoyama, M. Kakefuda, K. A. Willets, E. Spiecker, X. Ye Journal of the American Chemical Society 147, 37622-37633" + "text": "Py4DSTEM: A Software Package for Four-Dimensional Scanning Transmission Electron Microscopy Data Analysis B. H. Savitzky, S. E. Zeltmann, L. A. Hughes, H. G. Brown, S. Zhao, P. M. Pelz, T. C. Pekin, E. S. Barnard, J. Donohue, L. R. DaCosta, E. Kennedy, Y. Xie, M. T. Janish, M. M. Schneider, P. Herring, C. Gopal, A. Anapolsky, R. Dhall, K. C. Bustillo, P. Ercius, M. C. Scott, J. Ciston, A. M. Minor, C. Ophus Microscopy and Microanalysis 27, 712-743" }, { - "objectID": "publications/articles/50_kinetically_controlled_seed_mediated_synthesis_of_.html#citation-apa-7", - "href": "publications/articles/50_kinetically_controlled_seed_mediated_synthesis_of_.html#citation-apa-7", - "title": "Kinetically Controlled Seed-Mediated Synthesis of Colloidal Copper Nanotetrahedra with Intricate Internal Structure", + "objectID": "publications/articles/16_py4dstem_a_software_package_for_four_dimensional_s.html#citation-apa-7", + "href": "publications/articles/16_py4dstem_a_software_package_for_four_dimensional_s.html#citation-apa-7", + "title": "Py4DSTEM: A Software Package for Four-Dimensional Scanning Transmission Electron Microscopy Data Analysis", "section": "", - "text": "Kinetically Controlled Seed-Mediated Synthesis of Colloidal Copper Nanotetrahedra with Intricate Internal Structure S. Jeong, M. Wu, R. X. Skalla, B. Paranzino, A. Kichigin, B. Zhu, A. N. Butrum-Griffith, X. Zhan, Y. Zhong, C. Yan, P. Pelz, C. Ophus, S. Rechberger, Y. Wang, J. Chen, A. Yasuhara, Y. Aoyama, M. Kakefuda, K. A. Willets, E. Spiecker, X. Ye Journal of the American Chemical Society 147, 37622-37633" + "text": "Py4DSTEM: A Software Package for Four-Dimensional Scanning Transmission Electron Microscopy Data Analysis B. H. Savitzky, S. E. Zeltmann, L. A. Hughes, H. G. Brown, S. Zhao, P. M. Pelz, T. C. Pekin, E. S. Barnard, J. Donohue, L. R. DaCosta, E. Kennedy, Y. Xie, M. T. Janish, M. M. Schneider, P. Herring, C. Gopal, A. Anapolsky, R. Dhall, K. C. Bustillo, P. Ercius, M. C. Scott, J. Ciston, A. M. Minor, C. Ophus Microscopy and Microanalysis 27, 712-743" }, { - "objectID": "publications/articles/50_kinetically_controlled_seed_mediated_synthesis_of_.html#abstract", - "href": "publications/articles/50_kinetically_controlled_seed_mediated_synthesis_of_.html#abstract", - "title": "Kinetically Controlled Seed-Mediated Synthesis of Colloidal Copper Nanotetrahedra with Intricate Internal Structure", + "objectID": "publications/articles/16_py4dstem_a_software_package_for_four_dimensional_s.html#abstract", + "href": "publications/articles/16_py4dstem_a_software_package_for_four_dimensional_s.html#abstract", + "title": "Py4DSTEM: A Software Package for Four-Dimensional Scanning Transmission Electron Microscopy Data Analysis", "section": "Abstract", - "text": "Abstract\nThe controlled synthesis of non-noble metal nanocrystals, such as Cu, with well-defined shapes and internal structures remains a major challenge in nanochemistry, primarily due to the limited mechanistic understanding of their nucleation and growth pathways. Here, we report a heterometallic seed-mediated synthesis of monodisperse, size-tunable Cu truncated bitetrahedra (TBT) and tetrahedra using preformed Au nanocrystals as seeds. Systematic variation of the Au seed concentration enables precise control over nanocrystal size, while rapid reduction kinetics and sustained Cu monomer supply facilitate the evolution of TBT intermediates into well-defined Cu tetrahedra. Electron microscopy analyses reveal that the penta-twinned Au seeds induce asymmetric Cu overgrowth and initiate the formation of central twin boundaries in TBT. Four-dimensional scanning transmission electron microscopy of individual Cu tetrahedra at various tilt angles uncovers twinned layers on three facets and 5-fold axes along three edges. These structural features are rarely observed in previously reported noble-metal tetrahedra. The resulting Cu nanocrystals exhibit sharp, size-dependent localized surface plasmon resonance peaks in the visible range and demonstrate excellent activity in surface-enhanced Raman scattering. Near-field plasmon excitation mapping using electron energy-loss spectroscopy, supported by electromagnetic simulations, confirms distinct plasmon modes at individual Cu tetrahedra. This work highlights the potential of heterometallic twinned seeds for directing the synthesis of low-symmetry Cu nanocrystals and opens new opportunities for the design of non-noble-metal nanocrystals with tailored optical and catalytic properties." + "text": "Abstract\nScanning transmission electron microscopy (STEM) allows for imaging, diffraction, and spectroscopy of materials on length scales ranging from microns to atoms. By using a high-speed, direct electron detector, it is now possible to record a full two-dimensional (2D) image of the diffracted electron beam at each probe position, typically a 2D grid of probe positions. These 4D-STEM datasets are rich in information, including signatures of the local structure, orientation, deformation, electromagnetic fields, and other sample-dependent properties. However, extracting this information requires complex analysis pipelines that include data wrangling, calibration, analysis, and visualization, all while maintaining robustness against imaging distortions and artifacts. In this paper, we present py4DSTEM, an analysis toolkit for measuring material properties from 4D-STEM datasets, written in the Python language and released with an open-source license. We describe the algorithmic steps for dataset calibration and various 4D-STEM property measurements in detail and present results from several experimental datasets. We also implement a simple and universal file format appropriate for electron microscopy data in py4DSTEM, which uses the open-source HDF5 standard. We hope this tool will benefit the research community and help improve the standards for data and computational methods in electron microscopy, and we invite the community to contribute to this ongoing project." }, { - "objectID": "publications/articles/39_analysis_of_strain_and_defects_in_tellurium_wse2_m.html", - "href": "publications/articles/39_analysis_of_strain_and_defects_in_tellurium_wse2_m.html", - "title": "Analysis of Strain and Defects in Tellurium-WSe2 Moiré Heterostructures Using Scanning Nanodiffraction", + "objectID": "publications/articles/41_lorentz_near_field_electron_ptychography.html", + "href": "publications/articles/41_lorentz_near_field_electron_ptychography.html", + "title": "Lorentz near-field electron ptychography", "section": "", - "text": "Analysis of Strain and Defects in Tellurium-WSe2 Moiré Heterostructures Using Scanning Nanodiffraction B. Sari, S. E. Zeltmann, C. Zhao, P. M. Pelz, A. Javey, A. M. Minor, C. Ophus, M. C. Scott ACS Nano 17, 22326-22333" + "text": "Lorentz near-field electron ptychography S. You, P. Lu, T. Schachinger, A. Kovács, R. E. Dunin-Borkowski, A. M. Maiden Applied Physics Letters 123" }, { - "objectID": "publications/articles/39_analysis_of_strain_and_defects_in_tellurium_wse2_m.html#citation-apa-7", - "href": "publications/articles/39_analysis_of_strain_and_defects_in_tellurium_wse2_m.html#citation-apa-7", - "title": "Analysis of Strain and Defects in Tellurium-WSe2 Moiré Heterostructures Using Scanning Nanodiffraction", + "objectID": "publications/articles/41_lorentz_near_field_electron_ptychography.html#citation-apa-7", + "href": "publications/articles/41_lorentz_near_field_electron_ptychography.html#citation-apa-7", + "title": "Lorentz near-field electron ptychography", "section": "", - "text": "Analysis of Strain and Defects in Tellurium-WSe2 Moiré Heterostructures Using Scanning Nanodiffraction B. Sari, S. E. Zeltmann, C. Zhao, P. M. Pelz, A. Javey, A. M. Minor, C. Ophus, M. C. Scott ACS Nano 17, 22326-22333" + "text": "Lorentz near-field electron ptychography S. You, P. Lu, T. Schachinger, A. Kovács, R. E. Dunin-Borkowski, A. M. Maiden Applied Physics Letters 123" }, { - "objectID": "publications/articles/39_analysis_of_strain_and_defects_in_tellurium_wse2_m.html#abstract", - "href": "publications/articles/39_analysis_of_strain_and_defects_in_tellurium_wse2_m.html#abstract", - "title": "Analysis of Strain and Defects in Tellurium-WSe2 Moiré Heterostructures Using Scanning Nanodiffraction", + "objectID": "publications/articles/41_lorentz_near_field_electron_ptychography.html#abstract", + "href": "publications/articles/41_lorentz_near_field_electron_ptychography.html#abstract", + "title": "Lorentz near-field electron ptychography", "section": "Abstract", - "text": "Abstract\nIn recent years, there has been an increasing focus on 2D nongraphene materials that range from insulators to semiconductors to metals. As a single-elemental van der Waals semiconductor, tellurium (Te) has captivating anisotropic physical properties. Recent work demonstrated growth of ultrathin Te on WSe2 with the atomic chains of Te aligned with the armchair directions of the substrate using physical vapor deposition (PVD). In this system, a moiré superlattice is formed where micrometer-scale Te flakes sit on top of the continuous WSe2 film. Here, we determined the precise orientation of the Te flakes with respect to the substrate and detailed structure of the resulting moiré lattice by combining electron microscopy with image simulations. We directly visualized the moiré lattice using center of mass-differential phase contrast (CoM-DPC). We also investigated the local strain within the Te/WSe2 layered materials using scanning nanodiffraction techniques. There is a significant tensile strain at the edges of flakes along the direction perpendicular to the Te chain direction, which is an indication of the preferred orientation for the growth of Te on WSe2. In addition, we observed local strain relaxation regions within the Te film, specifically attributed to misfit dislocations, which we characterize as having a screw-like nature. The detailed structural analysis gives insight into the growth mechanisms and strain relaxation in this moiré heterostructure." + "text": "Abstract\nOver the past few years, electron ptychography has drawn considerable attention for its ability to recover high contrast and ultra-high resolution images without the need for high quality electron optics. In this Letter, we focus on electron ptychography’s other potential benefits: quantitatively mapping phase variations resulting from magnetic and electric fields over extended fields of view. To this end, we propose an implementation of near-field ptychography that employs an amplitude mask located in the electron microscope’s condenser aperture plane. We demonstrate the capabilities of our method by imaging a magnetic Permalloy sample and compare our results with those of off-axis electron holography." }, { - "objectID": "publications/articles/01_on_the_fly_scans_for_x_ray_ptychography.html", - "href": "publications/articles/01_on_the_fly_scans_for_x_ray_ptychography.html", - "title": "On-the-fly scans for X-ray ptychography", + "objectID": "publications/articles/55_gap_free_information_transfer_in_4d_stem_via_fusio.html", + "href": "publications/articles/55_gap_free_information_transfer_in_4d_stem_via_fusio.html", + "title": "Gap‐Free Information Transfer in 4D‐STEM via Fusion of Complementary Scattering Channels", "section": "", - "text": "On-the-fly scans for X-ray ptychography P. M. Pelz, M. Guizar-Sicairos, P. Thibault, I. Johnson, M. Holler, A. Menzel Applied Physics Letters 105" + "text": "Gap‐Free Information Transfer in 4D‐STEM via Fusion of Complementary Scattering Channels S. You, G. Varnavides, S. Khavnekar, N. Palatkin, S. Shao, M. Wu, D. Stroppa, D. Chernikova, B. Zhu, R. Egoavil, S. Vespucci, D. Krishnan, X. Ye, F. K. M. Schur, E. Spiecker, P. Pelz Advanced Science" }, { - "objectID": "publications/articles/01_on_the_fly_scans_for_x_ray_ptychography.html#citation-apa-7", - "href": "publications/articles/01_on_the_fly_scans_for_x_ray_ptychography.html#citation-apa-7", - "title": "On-the-fly scans for X-ray ptychography", + "objectID": "publications/articles/55_gap_free_information_transfer_in_4d_stem_via_fusio.html#citation-apa-7", + "href": "publications/articles/55_gap_free_information_transfer_in_4d_stem_via_fusio.html#citation-apa-7", + "title": "Gap‐Free Information Transfer in 4D‐STEM via Fusion of Complementary Scattering Channels", "section": "", - "text": "On-the-fly scans for X-ray ptychography P. M. Pelz, M. Guizar-Sicairos, P. Thibault, I. Johnson, M. Holler, A. Menzel Applied Physics Letters 105" + "text": "Gap‐Free Information Transfer in 4D‐STEM via Fusion of Complementary Scattering Channels S. You, G. Varnavides, S. Khavnekar, N. Palatkin, S. Shao, M. Wu, D. Stroppa, D. Chernikova, B. Zhu, R. Egoavil, S. Vespucci, D. Krishnan, X. Ye, F. K. M. Schur, E. Spiecker, P. Pelz Advanced Science" }, { - "objectID": "publications/articles/01_on_the_fly_scans_for_x_ray_ptychography.html#abstract", - "href": "publications/articles/01_on_the_fly_scans_for_x_ray_ptychography.html#abstract", - "title": "On-the-fly scans for X-ray ptychography", + "objectID": "publications/articles/55_gap_free_information_transfer_in_4d_stem_via_fusio.html#abstract", + "href": "publications/articles/55_gap_free_information_transfer_in_4d_stem_via_fusio.html#abstract", + "title": "Gap‐Free Information Transfer in 4D‐STEM via Fusion of Complementary Scattering Channels", "section": "Abstract", - "text": "Abstract\nWith the increasing importance of nanotechnology, the need for reliable real-time imaging of mesoscopic objects with nanometer resolution is rising. For X-ray ptychography, a scanning microscopy technique that provides nanometric resolution on extended fields of view, and the settling time of the scanning system is one of the bottlenecks for fast imaging. Here, we demonstrate that ptychographic on-the-fly scans, i.e., collecting diffraction patterns while the sample is scanned with constant velocity, can be modelled as a state mixture of the probing radiation and allow for reliable image recovery. Characteristics of the probe modes are discussed for various scan parameters, and the application to significantly reducing the scanning time is considered." + "text": "Abstract\nLinear phase‐contrast scanning transmission electron microscopy (STEM) techniques compatible with high‐throughput 4D‐STEM acquisition are widely used to enhance phase contrast in weakly scattering and beam‐sensitive materials. In these modalities, contrast transfer is often suppressed at low spatial frequencies, resulting in a characteristic contrast gap that limits contrast. Approaches that retain low‐frequency phase contrast exist but typically require substantially increased experimental complexity, restricting routine use. Dark‐field STEM imaging captures this missing low‐frequency information through electrons scattered outside the bright‐field disk, but discards a large fraction of the scattered signal and is therefore dose‐inefficient. Fused Full‐field STEM (FF‐STEM) is introduced as a 4D‐STEM imaging modality that overcomes these limitations by combining ptychographic phase reconstruction with tilt‐corrected dark‐field imaging within a single acquisition. Bright‐field data are used to estimate probe aberrations and reconstruct a high‐resolution phase image, while dark‐field data provide complementary low‐frequency contrast. The two channels are fused in Fourier space using Wiener‐band weighting based on the spectral signal‐to‐noise ratio, yielding transfer‐gap‐free images with high contrast. FF‐STEM preserves the upsampling and depth‐sectioning capabilities of ptychography, adds robust low‐frequency contrast characteristic of dark‐field imaging, and enables dose‐efficient, near–real‐time reconstruction." + }, + { + "objectID": "publications/articles/46_using_phase_contrast_4d_stem_to_solve_3d_inorganic.html", + "href": "publications/articles/46_using_phase_contrast_4d_stem_to_solve_3d_inorganic.html", + "title": "Using Phase Contrast 4D-STEM to solve 3D Inorganic and Biological Nanostructures", + "section": "", + "text": "Using Phase Contrast 4D-STEM to solve 3D Inorganic and Biological Nanostructures C. Ophus, S. Ribet, G. Varnavides, P. M. Pelz Microscopy and Microanalysis 30" + }, + { + "objectID": "publications/articles/46_using_phase_contrast_4d_stem_to_solve_3d_inorganic.html#citation-apa-7", + "href": "publications/articles/46_using_phase_contrast_4d_stem_to_solve_3d_inorganic.html#citation-apa-7", + "title": "Using Phase Contrast 4D-STEM to solve 3D Inorganic and Biological Nanostructures", + "section": "", + "text": "Using Phase Contrast 4D-STEM to solve 3D Inorganic and Biological Nanostructures C. Ophus, S. Ribet, G. Varnavides, P. M. 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Pelz BIO Web of Conferences 129, 04027" + }, + { + "objectID": "publications/articles/45_information_transfer_improvement_by_parallax_corre.html#citation-apa-7", + "href": "publications/articles/45_information_transfer_improvement_by_parallax_corre.html#citation-apa-7", + "title": "Information Transfer Improvement by Parallax Correction and Ptychography Reconstruction Applied to Large-Area 4D STEM Experiments", + "section": "", + "text": "Information Transfer Improvement by Parallax Correction and Ptychography Reconstruction Applied to Large-Area 4D STEM Experiments D. Stroppa, S. Ribet, G. Varnavides, C. Ophus, P. 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Findlay Acta Crystallographica Section A Foundations and Advances 79, C1092-C1092" + }, + { + "objectID": "publications/articles/37_virtual_imaging_enabled_by_scattering_matrix_recon.html#abstract", + "href": "publications/articles/37_virtual_imaging_enabled_by_scattering_matrix_recon.html#abstract", + "title": "Virtual imaging enabled by scattering matrix reconstruction from 4D scanning transmission electron microscopy", + "section": "Abstract", + "text": "Abstract\ndepth resolution; and the inaccuracies shot noise introduces in our reconstructions. Using simulations, and leveraging a derived mathematical equivalence with a hypothetical direct phase-imaging technique, we begin by defining the depth resolution based on the characteristics of the probe when the sample is a weak phase object. Doped Si is then used as a case study to test the obfuscating effects of dynamical diffraction to the depth sensitive detection of dopants along the column. 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Using bilayer MoS2 as a benchmark, we differentiate its polytypism and specific dislocations through transmission electron microscopy (TEM) and Raman spectroscopy. Perfect and partial dislocations were revealed in TEM, which are closely linked to the stacking sequences, thus indirectly indicating the 2H and 3R polytypes. Quantitative analysis of reciprocal lattice from 3D electron diffraction and low-frequency Raman spectroscopy further validated these polytypes owing to their reliance on crystal symmetry. Surprisingly, we unexpectedly resolved both polytypes despite starting with 2H bulk crystal, pointing to a possible phase transition during mechanical exfoliation. 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2026-09-05T17:15:25.836Z + 2026-09-21T09:57:11.468Z https://pelzlab.science/posts/24-04-position/index.html - 2026-09-05T17:15:25.754Z + 2026-09-21T09:57:11.382Z diff --git a/docs/superpowers/plans/2026-09-07-people-page-hover-cards.md b/docs/superpowers/plans/2026-09-07-people-page-hover-cards.md deleted file mode 100644 index 8cd1146..0000000 --- a/docs/superpowers/plans/2026-09-07-people-page-hover-cards.md +++ /dev/null @@ -1,761 +0,0 @@ -# People Page Hover Cards Implementation Plan - -> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking. - -**Goal:** Replace the active-member grids on the People page with accessible Stanford-inspired portrait cards and hover/tap information panels while keeping the Alumni table unchanged. - -**Architecture:** A custom Quarto EJS listing template renders semantic card and panel markup directly from each profile's front matter. Page-scoped CSS controls the responsive grid and visual presentation, while a small dependency-free script adds single-panel state, touch and keyboard behavior, and viewport-aware alignment. Pytest and Playwright verify the rendered Quarto output and browser interactions. - -**Tech Stack:** Quarto 1.7, EJS listing templates, HTML, CSS, vanilla JavaScript, Python 3, pytest, BeautifulSoup, Playwright, Google Chrome - ---- - -## File Structure - -- Create `_templates/people-card.ejs.md`: render one responsive grid for any active-member listing, including conditional panel fields and accessible attributes. -- Create `people-cards.css`: contain only People page grid, card, panel, breakpoint, focus, and reduced-motion rules. -- Create `people-cards.js`: manage open card state, keyboard/touch input, outside clicks, Escape, and viewport alignment. -- Create `tests/test_people_page.py`: render `people.qmd` and verify content, metadata, accessibility markup, and Alumni regression behavior. -- Create `tests/test_people_page_browser.py`: verify hover, keyboard, touch, single-open state, and viewport overflow in a real browser. -- Modify `people.qmd`: use the custom template for active-member listings, retain the Alumni table, and load the page-scoped assets. -- Modify `people/pi/00_pelz_philipp.qmd`: expose existing research interests as compact card metadata. -- Modify `people/postdocs/02_shengbo_you.qmd`: expose existing interests and add the confirmed ORCID link. -- Modify `people/phd/06_williams.qmd`: expose existing research interests as compact card metadata. -- Modify `people/honorary/07_yan_mei.qmd`: expose the existing one-sentence background as optional card biography metadata. -- Modify `people/admins/yesim_tosun.qmd`: correct the email and expose it as an email link. -- Update generated `docs/people.html` and copied page assets only after source and browser verification. Because generated files already contain unrelated user changes, inspect and stage their diff separately. - -## Guardrails for the Existing Worktree - -The worktree contains unrelated source and generated-site changes. Before every commit, run `git diff --cached --stat` and `git diff --cached`, and stage only files named by the current task. Never use `git add .`, `git commit -a`, checkout/reset commands, or broad formatting. Do not overwrite or revert existing changes in `_quarto.yml`, `styles.css`, `_includes/`, other profile files, or unrelated files under `docs/`. - -### Task 1: Add the Card Metadata Contract - -**Files:** -- Create: `tests/test_people_page.py` -- Modify: `people/pi/00_pelz_philipp.qmd:2-7` -- Modify: `people/postdocs/02_shengbo_you.qmd:2-8` -- Modify: `people/phd/06_williams.qmd:4-10` -- Modify: `people/honorary/07_yan_mei.qmd:2-9` -- Modify: `people/admins/yesim_tosun.qmd:2-15,46-48` - -- [ ] **Step 1: Write failing source-metadata tests** - -Add tests that parse YAML front matter and establish the approved metadata contract without requiring every optional field: - -```python -from pathlib import Path - -import yaml - - -ROOT = Path(__file__).resolve().parents[1] - - -def front_matter(relative_path): - text = (ROOT / relative_path).read_text(encoding="utf-8") - _, yaml_text, _ = text.split("---", 2) - return yaml.safe_load(yaml_text) - - -def test_confirmed_people_card_metadata(): - shengbo = front_matter("people/postdocs/02_shengbo_you.qmd") - shengbo_links = shengbo["about"]["links"] - assert any( - link.get("href") == "https://orcid.org/0009-0008-0739-9903" - for link in shengbo_links - ) - - yesim = front_matter("people/admins/yesim_tosun.qmd") - yesim_links = yesim["about"]["links"] - assert any( - link.get("href") == "mailto:yesim.tosun@fau.de" - for link in yesim_links - ) - - -def test_optional_card_copy_is_compact(): - paths = [ - "people/pi/00_pelz_philipp.qmd", - "people/postdocs/02_shengbo_you.qmd", - "people/phd/06_williams.qmd", - "people/honorary/07_yan_mei.qmd", - ] - for path in paths: - metadata = front_matter(path) - copy = metadata.get("interests") or metadata.get("card-bio") - assert copy - assert len(copy) <= 220 -``` - -- [ ] **Step 2: Run the focused tests and confirm the expected failure** - -Run: `pytest tests/test_people_page.py -q` - -Expected: FAIL because Shengbo's ORCID, Yesim's structured email link, and some compact card fields do not exist yet. - -- [ ] **Step 3: Add only confirmed or already-published metadata** - -Add compact `interests` strings to Philipp Pelz, Shengbo You, and Umah Chukwudi Williams using their existing Research Interests sections. Add this existing background sentence to Yan Mei's front matter: - -```yaml -card-bio: "Doctoral researcher in the CorMic graduate school, co-supervised with Prof. Luca Ghiringhelli (KIT)." -``` - -Add an active link to Shengbo's existing `about` block: - -```yaml -links: - - icon: book-fill - text: ORCID - href: https://orcid.org/0009-0008-0739-9903 -``` - -Add an active link to Yesim's existing `about` block: - -```yaml -links: - - icon: envelope - text: Email - href: mailto:yesim.tosun@fau.de -``` - -Replace the incorrect plain-text Yesim email in the profile body with `Email: yesim.tosun@fau.de`. Do not populate any other missing fields. - -- [ ] **Step 4: Run the focused tests** - -Run: `pytest tests/test_people_page.py -q` - -Expected: PASS. - -- [ ] **Step 5: Commit the metadata contract** - -```bash -git add tests/test_people_page.py \ - people/pi/00_pelz_philipp.qmd \ - people/postdocs/02_shengbo_you.qmd \ - people/phd/06_williams.qmd \ - people/honorary/07_yan_mei.qmd \ - people/admins/yesim_tosun.qmd -git diff --cached -git commit -m "Add metadata for people hover cards" -``` - -### Task 2: Render Active Members with a Custom Quarto Template - -**Files:** -- Create: `_templates/people-card.ejs.md` -- Modify: `people.qmd:1-79` -- Modify: `tests/test_people_page.py` - -- [ ] **Step 1: Add failing rendered-markup tests** - -Extend `tests/test_people_page.py` with a session fixture that renders the People page and parses it: - -```python -import subprocess - -import pytest -from bs4 import BeautifulSoup - - -@pytest.fixture(scope="session") -def people_page(): - result = subprocess.run( - ["quarto", "render", "people.qmd"], - cwd=ROOT, - text=True, - capture_output=True, - ) - assert result.returncode == 0, result.stdout + result.stderr - return BeautifulSoup( - (ROOT / "docs/people.html").read_text(encoding="utf-8"), - "html.parser", - ) - - -def test_active_members_use_people_cards(people_page): - cards = people_page.select(".people-card") - assert len(cards) == 13 - for card in cards: - trigger = card.select_one(".people-card__trigger") - panel = card.select_one(".people-card__panel") - image = card.select_one("img") - assert trigger["aria-controls"] == panel["id"] - assert trigger["aria-expanded"] == "false" - assert image.get("alt") == card.select_one(".people-card__name").get_text(strip=True) - assert panel.select_one(".people-card__profile-link") - - -def test_sparse_profiles_omit_optional_blocks(people_page): - bardia = next( - card for card in people_page.select(".people-card") - if "Bardia Nasiri Sharaf" in card.get_text(" ", strip=True) - ) - assert bardia.select_one(".people-card__summary") is None - assert bardia.select_one(".people-card__links") is None - - -def test_confirmed_links_render(people_page): - assert people_page.select_one( - 'a[href="https://orcid.org/0009-0008-0739-9903"]' - ) - assert people_page.select_one('a[href="mailto:yesim.tosun@fau.de"]') - assert not people_page.select_one('a[href="mailto:jenny.wirth@fau.de"]') - - -def test_alumni_remain_a_table(people_page): - alumni = people_page.select_one("#alumni") - assert alumni.select_one("table") - assert not alumni.select_one(".people-card") -``` - -- [ ] **Step 2: Run the rendered-markup tests and confirm failure** - -Run: `pytest tests/test_people_page.py -q` - -Expected: FAIL because active listings still use Quarto's built-in grid cards. - -- [ ] **Step 3: Create the reusable custom listing template** - -Create `_templates/people-card.ejs.md`. Use `items`, `item.path`, standard fields, and custom metadata supplied by Quarto. The template must: - -- emit one `.people-grid.list` wrapper; -- emit an `
    ` for each item with `<%= metadataAttrs(item) %>`; -- derive a unique, HTML-safe panel ID from `item.path`; -- make the image/name/role block an anchor to `item.path` with class `.people-card__trigger`, `aria-expanded="false"`, and `aria-controls` pointing to the panel; -- render `item.image` with `alt` equal to `item.title` and `loading="lazy"`; -- render role and `started` only when present; -- choose `item.interests` first, then `item['card-bio']`, for the single optional summary block; -- render `item.about.links` only when the array exists and has entries, using `link.href` and `link.text`; -- append a `.people-card__profile-link` to `item.path`; and -- use escaped EJS output (`<%- value %>`) for profile metadata and URLs. - -Implement the complete template as follows: - -````ejs -```{=html} -
    -<% for (const item of items) { - const key = String(item.path).replace(/[^a-zA-Z0-9_-]/g, "-"); - const panelId = `people-panel-${key}`; - const summary = item.interests || item["card-bio"]; - const links = item.about && Array.isArray(item.about.links) - ? item.about.links.filter(link => link && link.href) - : []; -%> - -<% } %> -
    -``` -```` - -- [ ] **Step 4: Wire active listings to the template** - -For listing IDs `pi`, `postdocs`, `phd-students`, `msc_students`, `research-assistants`, `admin-assistants`, and `honorary-members`, remove built-in grid-only options and set: - -```yaml -template: _templates/people-card.ejs.md -sort: sortby -``` - -Keep the `alumni` configuration as `type: table` with its current sorting, filtering, fields, and display names. Do not reference the CSS or JavaScript yet; later tasks add each asset only after creating it. - -- [ ] **Step 5: Run the rendered-markup tests** - -Run: `pytest tests/test_people_page.py -q` - -Expected: PASS, including 13 active cards, conditional omission for Bardia, confirmed links, and an intact Alumni table. - -- [ ] **Step 6: Commit the semantic card rendering** - -```bash -git add _templates/people-card.ejs.md people.qmd tests/test_people_page.py -git diff --cached -git commit -m "Render custom people profile cards" -``` - -### Task 3: Add the Responsive ECLIPSE Card Styling - -**Files:** -- Create: `people-cards.css` -- Create: `tests/test_people_page_browser.py` -- Modify: `people.qmd:1-5` - -- [ ] **Step 1: Write a failing browser layout test** - -Create a test server fixture for `docs/` and a Playwright fixture using `/usr/bin/google-chrome`: - -```python -import socket -import subprocess -import time -import urllib.request -from pathlib import Path - -import pytest -from playwright.sync_api import sync_playwright - - -ROOT = Path(__file__).resolve().parents[1] - - -@pytest.fixture(scope="session") -def site_url(): - with socket.socket() as sock: - sock.bind(("127.0.0.1", 0)) - port = sock.getsockname()[1] - server = subprocess.Popen( - ["python", "-m", "http.server", str(port), "--directory", "docs"], - cwd=ROOT, - stdout=subprocess.DEVNULL, - stderr=subprocess.DEVNULL, - ) - url = f"http://127.0.0.1:{port}" - for _ in range(50): - try: - urllib.request.urlopen(f"{url}/people.html", timeout=0.2).close() - break - except OSError: - time.sleep(0.1) - else: - server.terminate() - raise RuntimeError("People page test server did not start") - yield url - server.terminate() - server.wait(timeout=5) - - -@pytest.fixture(scope="session") -def browser(): - with sync_playwright() as playwright: - instance = playwright.chromium.launch( - executable_path="/usr/bin/google-chrome", - headless=True, - args=["--no-sandbox"], - ) - yield instance - instance.close() - - -@pytest.fixture -def page(browser): - instance = browser.new_page() - yield instance - instance.close() - - -def test_people_grid_is_responsive(page, site_url): - page.set_viewport_size({"width": 1440, "height": 1000}) - page.goto(f"{site_url}/people.html") - desktop_columns = page.locator("#phd-students .people-grid").evaluate( - "grid => getComputedStyle(grid).gridTemplateColumns.split(' ').length" - ) - assert desktop_columns == 4 - - page.set_viewport_size({"width": 390, "height": 844}) - cards = page.locator("#phd-students .people-card") - tops = cards.evaluate_all( - "nodes => nodes.map(node => Math.round(node.getBoundingClientRect().top))" - ) - assert len(set(tops)) == cards.count() - assert page.evaluate("document.documentElement.scrollWidth <= innerWidth") -``` - -- [ ] **Step 2: Run the layout test and confirm failure** - -Run: `pytest tests/test_people_page_browser.py::test_people_grid_is_responsive -q` - -Expected: FAIL because `people-cards.css` does not exist or the cards have no responsive grid rules. - -- [ ] **Step 3: Implement page-scoped styles** - -Create `people-cards.css` with rules scoped under `.people-grid` and `.people-card`. Include: - -```css -.people-grid { - display: grid; - grid-template-columns: repeat(4, minmax(0, 1fr)); - gap: 1.5rem; - align-items: start; - margin: 1.25rem 0 3rem; -} - -.people-card { - position: relative; - min-width: 0; - text-align: center; -} - -.people-card__trigger { - display: flex; - flex-direction: column; - color: inherit; - text-decoration: none; - border-radius: 0.5rem; -} - -.people-card__portrait { - width: 100%; - aspect-ratio: 1; - object-fit: cover; - border-radius: 0.25rem; -} - -.people-card__panel { - position: absolute; - z-index: 20; - top: calc(100% + 0.5rem); - left: 50%; - width: min(25rem, calc(100vw - 2rem)); - max-height: min(32rem, calc(100vh - 2rem)); - overflow-y: auto; - transform: translateX(calc(-50% + var(--people-panel-shift, 0px))) translateY(-0.25rem); - visibility: hidden; - opacity: 0; - pointer-events: none; - text-align: left; - background: #172033; - border: 1px solid rgba(148, 163, 184, 0.35); - border-radius: 0.625rem; - box-shadow: 0 1rem 2.5rem rgba(0, 0, 0, 0.45); - transition: opacity 180ms ease, transform 180ms ease, - visibility 0s linear 180ms; -} - -.people-card:hover .people-card__panel, -html:not(.people-cards-enhanced) .people-card:focus-within .people-card__panel, -.people-card.is-open .people-card__panel { - visibility: visible; - opacity: 1; - pointer-events: auto; - transform: translateX(calc(-50% + var(--people-panel-shift, 0px))) translateY(0); - transition-delay: 0s; -} - -@media (max-width: 1199px) { - .people-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } -} - -@media (max-width: 767px) { - .people-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } -} - -@media (max-width: 479px) { - .people-grid { grid-template-columns: minmax(0, 1fr); } -} - -@media (prefers-reduced-motion: reduce) { - .people-card__panel { transition: none; } -} -``` - -Add explicit rules for `.people-card__name`, `.people-card__role`, `.people-card__meta`, `.people-card__summary`, `.people-card__links`, and `.people-card__profile-link`: use the existing Outfit heading font for names, Inter for supporting copy, `#f8fafc` for primary text, `#94a3b8` for secondary text, and `#93c5fd` for panel links. Separate nonempty panel sections with `rgba(148, 163, 184, 0.22)` borders, give the trigger a visible `#60a5fa` focus outline, and transition opacity, transform, portrait shadow, and delayed visibility over 180 ms. Keep the fixed four/three/two/one grid tracks above so sections with fewer cards occupy normal track widths rather than stretching. - -Add the stylesheet to `people.qmd` front matter after it exists: - -```yaml -css: people-cards.css -``` - -- [ ] **Step 4: Render and rerun layout tests** - -Run: `quarto render people.qmd && pytest tests/test_people_page_browser.py::test_people_grid_is_responsive -q` - -Expected: PASS. - -- [ ] **Step 5: Commit the responsive styling** - -```bash -git add people-cards.css people.qmd tests/test_people_page_browser.py -git diff --cached -git commit -m "Style responsive people profile cards" -``` - -### Task 4: Implement Hover, Keyboard, and Touch Behavior - -**Files:** -- Create: `people-cards.js` -- Modify: `people.qmd:1-5, end of file` -- Modify: `tests/test_people_page_browser.py` - -- [ ] **Step 1: Write failing interaction tests** - -Add Playwright tests that verify: - -```python -def test_hover_and_keyboard_open_and_close(page, site_url): - page.goto(f"{site_url}/people.html") - card = page.locator(".people-card").first - trigger = card.locator(".people-card__trigger") - panel = card.locator(".people-card__panel") - - card.hover() - assert panel.is_visible() - trigger.focus() - assert trigger.get_attribute("aria-expanded") == "true" - trigger.press("Escape") - assert trigger.get_attribute("aria-expanded") == "false" - trigger.press("Space") - assert trigger.get_attribute("aria-expanded") == "true" - - -def test_only_one_touch_panel_opens_and_links_still_work(browser, site_url): - context = browser.new_context( - viewport={"width": 390, "height": 844}, - has_touch=True, - is_mobile=True, - ) - page = context.new_page() - page.goto(f"{site_url}/people.html") - triggers = page.locator(".people-card__trigger") - triggers.nth(0).tap() - assert triggers.nth(0).get_attribute("aria-expanded") == "true" - triggers.nth(1).tap() - assert triggers.nth(0).get_attribute("aria-expanded") == "false" - assert triggers.nth(1).get_attribute("aria-expanded") == "true" - assert page.locator(".people-card.is-open").count() == 1 - context.close() - - -def test_open_panels_stay_inside_viewport(page, site_url): - page.set_viewport_size({"width": 1024, "height": 800}) - page.goto(f"{site_url}/people.html") - for card in page.locator("#phd-students .people-card").all(): - card.hover() - rect = card.locator(".people-card__panel").bounding_box() - assert rect["x"] >= 16 - assert rect["x"] + rect["width"] <= 1008 -``` - -- [ ] **Step 2: Run interaction tests and confirm failure** - -Run: `pytest tests/test_people_page_browser.py -q` - -Expected: FAIL because ARIA state, single-open touch state, Escape handling, and panel edge shifting are not implemented. - -- [ ] **Step 3: Implement the dependency-free controller** - -Create `people-cards.js` with the complete dependency-free controller: - -```javascript -(() => { - document.documentElement.classList.add('people-cards-enhanced'); - const cards = [...document.querySelectorAll('.people-card')]; - if (!cards.length) return; - - const finePointer = window.matchMedia('(hover: hover) and (pointer: fine)'); - let openCard = null; - - function setState(card, expanded) { - const trigger = card.querySelector('.people-card__trigger'); - const panel = card.querySelector('.people-card__panel'); - card.classList.toggle('is-open', expanded); - trigger.setAttribute('aria-expanded', String(expanded)); - panel.setAttribute('aria-hidden', String(!expanded)); - if (expanded) { - openCard = card; - requestAnimationFrame(() => keepPanelInViewport(card)); - } else if (openCard === card) { - openCard = null; - panel.style.removeProperty('--people-panel-shift'); - } - } - - function closeCurrent(except = null) { - if (openCard && openCard !== except) setState(openCard, false); - } - - function keepPanelInViewport(card) { - const panel = card.querySelector('.people-card__panel'); - panel.style.setProperty('--people-panel-shift', '0px'); - const rect = panel.getBoundingClientRect(); - const gutter = 16; - let shift = 0; - if (rect.left < gutter) shift += gutter - rect.left; - if (rect.right > innerWidth - gutter) shift -= rect.right - (innerWidth - gutter); - panel.style.setProperty('--people-panel-shift', `${shift}px`); - } - - cards.forEach((card) => { - const trigger = card.querySelector('.people-card__trigger'); - let coarseActivation = false; - - card.addEventListener('mouseenter', () => { - closeCurrent(card); - requestAnimationFrame(() => keepPanelInViewport(card)); - }); - - trigger.addEventListener('pointerdown', (event) => { - coarseActivation = event.pointerType === 'touch' || event.pointerType === 'pen'; - }); - - trigger.addEventListener('focus', () => { - if (coarseActivation) return; - closeCurrent(card); - setState(card, true); - }); - - trigger.addEventListener('click', (event) => { - const isCoarseClick = coarseActivation || !finePointer.matches; - coarseActivation = false; - if (!isCoarseClick || card.classList.contains('is-open')) return; - event.preventDefault(); - closeCurrent(card); - setState(card, true); - }); - - trigger.addEventListener('keydown', (event) => { - if (event.key !== 'Enter' && event.key !== ' ') return; - event.preventDefault(); - const expanded = trigger.getAttribute('aria-expanded') === 'true'; - closeCurrent(card); - setState(card, !expanded); - }); - - card.addEventListener('focusout', () => { - requestAnimationFrame(() => { - if (!card.contains(document.activeElement)) setState(card, false); - }); - }); - }); - - document.addEventListener('click', (event) => { - if (openCard && !openCard.contains(event.target)) setState(openCard, false); - }); - - document.addEventListener('keydown', (event) => { - if (event.key !== 'Escape' || !openCard) return; - const trigger = openCard.querySelector('.people-card__trigger'); - setState(openCard, false); - trigger.focus(); - }); - - window.addEventListener('resize', () => { - if (openCard) requestAnimationFrame(() => keepPanelInViewport(openCard)); - }); -})(); -``` - -After the script exists, add it as a page resource in `people.qmd` front matter: - -```yaml -resources: - - people-cards.js -``` - -Append this raw HTML once at the end of `people.qmd`: - -```html - -``` - -Verify the implemented behavior against these requirements: - -- pointer hover continues to work through CSS and updates position on `mouseenter`; -- on coarse/touch pointers, prevent the first trigger navigation and open the panel; a second trigger activation may follow the profile link; -- Enter and Space toggle the panel while focus is on the trigger; the explicit profile link remains the keyboard navigation path; -- Escape closes the current panel and returns focus to its trigger; -- clicking or tapping outside closes the current panel; -- opening a card closes the previously open card; -- focus moving into panel links does not close it; -- resize and orientation changes recompute the open panel's shift; and -- `aria-expanded` and `aria-hidden` always match the visual state. - -- [ ] **Step 4: Run interaction and regression tests** - -Run: `quarto render people.qmd && pytest tests/test_people_page.py tests/test_people_page_browser.py -q` - -Expected: PASS. - -- [ ] **Step 5: Commit interaction behavior** - -```bash -git add people-cards.js people.qmd tests/test_people_page_browser.py -git diff --cached -git commit -m "Add accessible people card interactions" -``` - -### Task 5: Verify the Finished Page and Generated Output - -**Files:** -- Modify: `docs/people.html` -- Create or modify through Quarto: `docs/people-cards.css`, `docs/people-cards.js` - -- [ ] **Step 1: Run all existing Python tests** - -Run: `pytest -q` - -Expected: all tests pass. - -- [ ] **Step 2: Render the complete site** - -Run: `quarto render` - -Expected: exit code 0 with no EJS template, missing-resource, or YAML errors. - -- [ ] **Step 3: Rerun the people-page browser suite against the final render** - -Run: `pytest tests/test_people_page.py tests/test_people_page_browser.py -q` - -Expected: all People page tests pass. - -- [ ] **Step 4: Inspect desktop and mobile screenshots** - -Use Playwright to capture the final page at 1440×1000 and 390×844 with a representative panel open. Confirm portrait crops, centered labels, panel contrast, row spacing, edge alignment, no horizontal scrolling, and the unchanged Alumni table. Also test one sparse card and the corrected Shengbo and Yesim links. - -- [ ] **Step 5: Audit the final diff without absorbing unrelated work** - -Run: - -```bash -git status --short -git diff -- people.qmd _templates/people-card.ejs.md people-cards.css people-cards.js \ - people/pi/00_pelz_philipp.qmd people/postdocs/02_shengbo_you.qmd \ - people/phd/06_williams.qmd people/honorary/07_yan_mei.qmd \ - people/admins/yesim_tosun.qmd tests/test_people_page.py \ - tests/test_people_page_browser.py -``` - -Expected: only approved source, test, and metadata changes appear in this task's files. Review `docs/people.html` and copied assets separately because `docs/` already contained user-owned generated changes before this work. - -- [ ] **Step 6: Commit only safely attributable generated output** - -If the People page and copied assets can be staged without including unrelated pre-existing changes: - -```bash -git add docs/people.html docs/people-cards.css docs/people-cards.js -git diff --cached -git commit -m "Build updated people page" -``` - -If `docs/people.html` still mixes unrelated pre-existing changes, leave the generated output unstaged and report that clearly; the verified source implementation remains complete, and the generated file can be committed with the owner's existing site-output update. diff --git a/docs/superpowers/specs/2026-09-07-people-page-hover-cards-design.md b/docs/superpowers/specs/2026-09-07-people-page-hover-cards-design.md deleted file mode 100644 index 09d5b38..0000000 --- a/docs/superpowers/specs/2026-09-07-people-page-hover-cards-design.md +++ /dev/null @@ -1,93 +0,0 @@ -# People Page Hover Cards Design - -## Goal - -Redesign the active-member sections of the ECLIPSE Lab People page using the visual structure and interaction pattern of the Colin Ophus Lab People page: a clean portrait grid with a compact information panel that appears on hover, keyboard focus, or tap. The result must retain the ECLIPSE site's dark visual identity and continue to link to each person's full profile. - -## Scope - -The redesign applies to the Principal Investigator, Postdocs, PhD Students, MSc Students, Research Assistants, Honorary Members, and Administrative Assistants sections. The existing section headings and jump links remain. The empty BSc section remains as a short empty-state message. - -The Alumni section remains the existing sortable and filterable table. Alumni do not receive portrait cards or hover panels in this change. - -## Visual Design - -The selected direction is “Stanford structure, ECLIPSE colors.” Active members appear in a responsive grid with: - -- square, full-color portraits with a subtle corner radius; -- the person's name centered directly below the portrait; -- the person's role centered below the name; -- restrained spacing and decoration so the portraits remain the dominant visual element; and -- ECLIPSE typography, dark backgrounds, blue and violet accents, and existing page-level background effects. - -The grid uses four columns on wide screens, three on laptops, two on tablets, and one on phones. Sections with fewer members do not stretch cards beyond the standard card width. - -## Information Panel - -Each active-member card can reveal a floating information panel anchored below the name and role. The panel uses a high-contrast dark surface, a fine border, a soft shadow, and compact typography consistent with the rest of the site. - -Panel content appears only when available and follows this order: - -1. role and start date; -2. one compact content block containing research interests, or a short biography when research interests are unavailable; -3. available contact and professional profile links; and -4. an explicit “View profile” link to the existing full profile page. - -Empty values produce no label, separator, or placeholder. Long text is capped to keep the panel compact; the full profile page remains the destination for detailed biographies, experience, publications, and education. - -## Interaction - -On pointer devices, hovering over a card opens its panel. Moving the pointer from the card into the panel keeps it open, and leaving the combined card-panel region closes it after a brief delay. - -Keyboard focus reveals the panel. Enter or Space toggles it, Escape closes it, and visible focus styling identifies the active card. The trigger exposes expanded/collapsed state and its relationship to the panel to assistive technology. - -On touch devices, the first tap opens the panel. Links within the open panel work normally, including “View profile.” Tapping outside closes the panel. Opening one card closes any other open card. - -The panel positions itself within the viewport, changing horizontal alignment for cards near the left or right edge. It must not cause horizontal page scrolling. Reduced-motion preferences disable nonessential transitions. - -## Content and Data - -The individual Quarto profile files remain the source of truth. A custom Quarto listing template will render the active-member cards from profile front matter, preserving automatic discovery and the existing `sortby` order. Optional metadata is rendered conditionally. - -Existing metadata fields continue to provide `title`, `subtitle`, `image`, `started`, `interests`, and `about.links`. A concise description may be added to front matter when suitable text already exists in the profile body. Missing descriptions, interests, and external links remain optional and are omitted from the card. - -This change includes two confirmed profile-data corrections: - -- add Shengbo You's ORCID link: `https://orcid.org/0009-0008-0739-9903`; -- replace the incorrect email on Yesim Tosun's profile with `yesim.tosun@fau.de` and expose it as a usable email link. - -No other missing biographies, pronouns, publications, photos, or external links will be invented or requested as part of this change. Existing placeholder portraits remain for members without a supplied photo. - -## Components and Boundaries - -The implementation has three focused parts: - -1. A reusable custom Quarto listing template renders semantic card and panel markup from each profile item's metadata. It owns content ordering and conditional omission of unavailable fields. -2. People-page styles own the grid, portrait treatment, panel appearance, responsive breakpoints, focus presentation, and reduced-motion behavior. They are scoped so other Quarto listings and cards remain unchanged. -3. A small people-page interaction script owns open/close state, keyboard and touch behavior, outside-click handling, single-open-panel behavior, and viewport-aware alignment. The page remains readable and all profile links remain usable if JavaScript fails; hover and focus presentation can still be provided by CSS where supported. - -The existing Quarto table listing continues to render the Alumni section, including its sorting and filtering controls. - -## Accessibility - -Every portrait uses the person's name as alternative text. The card trigger is keyboard reachable and communicates whether its panel is expanded. Panels do not trap focus. Links have descriptive accessible names, and the design does not rely on color alone to communicate state. - -Text and interactive controls must retain sufficient contrast against the dark background. Touch targets must be comfortably sized. Information available on hover must also be available through focus and tap. - -## Failure and Edge Cases - -- Missing optional metadata: omit the corresponding content without leaving gaps. -- Missing supplied portrait: use the profile's existing placeholder image. -- Long names or roles: wrap without changing portrait dimensions. -- Long panel content: constrain panel height and allow internal scrolling only when necessary. -- Viewport edges: align or shift the panel to keep it on screen. -- JavaScript unavailable: preserve the portrait, name, role, and direct profile navigation. -- Empty group: preserve the existing textual empty state rather than rendering an empty grid. - -## Verification - -Render the site with Quarto and confirm there are no template or metadata errors. Inspect the generated People page at wide desktop, laptop, tablet, and phone widths. Verify all active-member groups, ordering, portrait paths, role labels, optional content, external links, and profile destinations. - -Exercise hover transitions, movement into the panel, outside-click closing, single-open-panel behavior, keyboard traversal, Enter/Space activation, Escape closing, and touch tap behavior. Check the first and last card in each row for viewport overflow and confirm the page never gains horizontal scrolling. - -Confirm that profiles with sparse metadata render cleanly, Shengbo You's ORCID is correct, Yesim Tosun's corrected email link works, reduced-motion behavior is respected, and the Alumni table still sorts and filters as before. diff --git a/publication_metrics.json b/publication_metrics.json index 9b6b6b0..e07d239 100644 --- a/publication_metrics.json +++ b/publication_metrics.json @@ -1,9 +1,27 @@ { - "count": 50, - "generated_at": "2026-09-05T17:16:21Z", + "count": 55, + "generated_at": "2026-09-21T09:58:18Z", "metrics": { + "10.1002/advs.76620": { + "citation_percentile": 67.124814, + "cited_by_count": 0, + "counts_by_year": [], + "counts_by_year_compact": [], + "fwci": 0.0, + "is_oa": true, + "is_top_10_percent": false, + "is_top_1_percent": false, + "keywords": [ + "Scattering", + "Phase-contrast imaging", + "Contrast transfer function", + "Upsampling" + ], + "metrics_updated": "2026-09-21T09:58:18Z", + "oa_status": "gold" + }, "10.1016/j.micron.2021.103141": { - 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"citation_percentile": 95.67174899999999, + "citation_percentile": 95.31914900000001, "cited_by_count": 11, "counts_by_year": [ { @@ -1833,7 +1919,7 @@ 2 ] ], - "fwci": 4.4374, + "fwci": 4.1556, "is_oa": true, "is_top_10_percent": true, "is_top_1_percent": false, @@ -1844,11 +1930,11 @@ "Phase contrast microscopy", "Optics" ], - "metrics_updated": "2026-09-05T17:16:21Z", + "metrics_updated": "2026-09-21T09:58:18Z", "oa_status": "hybrid" }, "10.1088/2515-7639/acf524": { - "citation_percentile": 71.051785, + "citation_percentile": 70.07614199999999, "cited_by_count": 11, "counts_by_year": [ { @@ -1898,7 +1984,7 @@ 2 ] ], - "fwci": 0.9133, + "fwci": 0.8856, "is_oa": true, "is_top_10_percent": false, "is_top_1_percent": false, @@ -1907,11 +1993,11 @@ "Crystallite", "Optics" ], - "metrics_updated": "2026-09-05T17:16:21Z", + "metrics_updated": "2026-09-21T09:58:18Z", "oa_status": "gold" }, "10.1088/2515-7639/ad9ad2": { - "citation_percentile": 90.97291899999999, + "citation_percentile": 90.928495, "cited_by_count": 8, "counts_by_year": [ { @@ -1957,16 +2043,16 @@ 2 ] ], - "fwci": 2.6367, + "fwci": 2.5549, "is_oa": true, "is_top_10_percent": true, "is_top_1_percent": false, "keywords": [], - "metrics_updated": "2026-09-05T17:16:21Z", + "metrics_updated": "2026-09-21T09:58:18Z", "oa_status": "gold" }, "10.1093/mam/ozae044.149": { - "citation_percentile": 12.524302, + "citation_percentile": 10.510638, "cited_by_count": 0, "counts_by_year": [], "counts_by_year_compact": [], @@ -1979,11 +2065,11 @@ "Ptychography", "Optics" ], - "metrics_updated": "2026-09-05T17:16:21Z", + "metrics_updated": "2026-09-21T09:58:18Z", "oa_status": "closed" }, "10.1093/mam/ozae044.883": { - "citation_percentile": 4.90982, + "citation_percentile": 5.122732, "cited_by_count": 0, "counts_by_year": [], "counts_by_year_compact": [], @@ -1996,11 +2082,11 @@ "Nanostructure", "Nanotechnology" ], - "metrics_updated": "2026-09-05T17:16:21Z", + "metrics_updated": "2026-09-21T09:58:18Z", "oa_status": "closed" }, "10.1093/mam/ozae086": { - "citation_percentile": 94.905291, + "citation_percentile": 94.574729, "cited_by_count": 35, "counts_by_year": [ { @@ -2054,7 +2140,7 @@ 13 ] ], - "fwci": 3.897, + "fwci": 3.6193, "is_oa": true, "is_top_10_percent": true, "is_top_1_percent": false, @@ -2066,11 +2152,11 @@ "Conventional transmission electron microscope", "Transmission electron microscopy" ], - "metrics_updated": "2026-09-05T17:16:21Z", + "metrics_updated": "2026-09-21T09:58:18Z", "oa_status": "hybrid" }, "10.1093/mam/ozaf048.041": { - "citation_percentile": 5.059646, + "citation_percentile": 5.314233, "cited_by_count": 0, "counts_by_year": [], "counts_by_year_compact": [], @@ -2083,11 +2169,27 @@ "Tomography", "Electron tomography" ], - "metrics_updated": "2026-09-05T17:16:21Z", + "metrics_updated": "2026-09-21T09:58:18Z", "oa_status": "bronze" }, + "10.1093/mam/ozaf048.044": { + "citation_percentile": 20.300501, + "cited_by_count": 0, + "counts_by_year": [], + "counts_by_year_compact": [], + "fwci": 0.0, + "is_oa": false, + "is_top_10_percent": false, + "is_top_1_percent": false, + "keywords": [ + "Ptychography", + "Fresnel diffraction" + ], + "metrics_updated": "2026-09-21T09:58:18Z", + "oa_status": "closed" + }, "10.1093/micmic/ozad067.348": { - "citation_percentile": 6.948525, + "citation_percentile": 7.058534, "cited_by_count": 0, "counts_by_year": [], "counts_by_year_compact": [], @@ -2100,11 +2202,11 @@ "Electron tomography", "Electron" ], - "metrics_updated": "2026-09-05T17:16:21Z", + "metrics_updated": "2026-09-21T09:58:18Z", "oa_status": "bronze" }, "10.1093/micmic/ozad068": { - "citation_percentile": 90.740741, + "citation_percentile": 90.623306, "cited_by_count": 14, "counts_by_year": [ { @@ -2154,7 +2256,7 @@ 4 ] ], - "fwci": 2.7053, + "fwci": 2.7658, "is_oa": true, "is_top_10_percent": true, "is_top_1_percent": false, @@ -2166,11 +2268,11 @@ "Scanning transmission electron microscopy", "Scattering" ], - "metrics_updated": "2026-09-05T17:16:21Z", + "metrics_updated": "2026-09-21T09:58:18Z", "oa_status": "hybrid" }, "10.1103/physreva.89.013403": { - "citation_percentile": 92.02541199999999, + "citation_percentile": 92.372462, "cited_by_count": 50, "counts_by_year": [ { @@ -2260,7 +2362,7 @@ 3 ] ], - "fwci": 3.0455, + "fwci": 3.1805, "is_oa": true, "is_top_10_percent": true, "is_top_1_percent": false, @@ -2272,11 +2374,11 @@ "Excited state", "Singlet state" ], - "metrics_updated": "2026-09-05T17:16:21Z", + "metrics_updated": "2026-09-21T09:58:18Z", "oa_status": "bronze" }, "10.1103/physrevresearch.3.023159": { - "citation_percentile": 94.889414, + "citation_percentile": 94.871235, "cited_by_count": 21, "counts_by_year": [ { @@ -2338,7 +2440,7 @@ 2 ] ], - "fwci": 4.013, + "fwci": 4.0088, "is_oa": true, "is_top_10_percent": true, "is_top_1_percent": false, @@ -2346,11 +2448,11 @@ "Scattering", "Optics" ], - "metrics_updated": "2026-09-05T17:16:21Z", + "metrics_updated": "2026-09-21T09:58:18Z", "oa_status": "gold" }, "10.1107/s2053273323085297": { - "citation_percentile": 12.936611000000001, + "citation_percentile": 13.559034, "cited_by_count": 0, "counts_by_year": [], "counts_by_year_compact": [], @@ -2363,11 +2465,11 @@ "Scattering", "Transmission electron microscopy" ], - "metrics_updated": "2026-09-05T17:16:21Z", + "metrics_updated": "2026-09-21T09:58:18Z", "oa_status": "bronze" }, "10.1107/s2053273323093609": { - "citation_percentile": 13.146831, + "citation_percentile": 13.780197, "cited_by_count": 0, "counts_by_year": [], "counts_by_year_compact": [], @@ -2378,11 +2480,11 @@ "keywords": [ "Nanoscopic scale" ], - "metrics_updated": "2026-09-05T17:16:21Z", + "metrics_updated": "2026-09-21T09:58:18Z", "oa_status": "bronze" }, "10.1109/msp.2021.3120981": { - "citation_percentile": 92.223803, + "citation_percentile": 92.038057, "cited_by_count": 28, "counts_by_year": [ { @@ -2440,7 +2542,7 @@ 4 ] ], - "fwci": 3.048, + "fwci": 2.9264, "is_oa": true, "is_top_10_percent": true, "is_top_1_percent": false, @@ -2449,9 +2551,24 @@ "Scanning transmission electron microscopy", "Frame rate" ], - "metrics_updated": "2026-09-05T17:16:21Z", + "metrics_updated": "2026-09-21T09:58:18Z", "oa_status": "green" }, + "10.22443/rms.emc2020.657": { + "citation_percentile": 3.738318, + "cited_by_count": 0, + "counts_by_year": [], + "counts_by_year_compact": [], + "fwci": 0.0, + "is_oa": false, + "is_top_10_percent": false, + "is_top_1_percent": false, + "keywords": [ + "Ptychography" + ], + "metrics_updated": "2026-09-21T09:58:18Z", + "oa_status": "closed" + }, "10.48550/arxiv.2008.12768": { "citation_percentile": null, "cited_by_count": 6, @@ -2509,7 +2626,7 @@ "Diffraction", "Wavefront" ], - "metrics_updated": "2026-09-05T17:16:21Z", + "metrics_updated": "2026-09-21T09:58:18Z", "oa_status": "green" }, "10.48550/arxiv.2011.07652": { @@ -2529,7 +2646,7 @@ "Microscopy", "Yttrium" ], - "metrics_updated": "2026-09-05T17:16:21Z", + "metrics_updated": "2026-09-21T09:58:18Z", "oa_status": "green" }, "10.48550/arxiv.2102.05604": { @@ -2549,7 +2666,25 @@ "Software", "Parametric statistics" ], - "metrics_updated": "2026-09-05T17:16:21Z", + "metrics_updated": "2026-09-21T09:58:18Z", + "oa_status": "green" + }, + "10.48550/arxiv.2308.10870": { + "citation_percentile": null, + "cited_by_count": 0, + "counts_by_year": [], + "counts_by_year_compact": [], + "fwci": null, + "is_oa": true, + "is_top_10_percent": false, + "is_top_1_percent": false, + "keywords": [ + "Optics", + "Ptychography", + "Amplitude", + "Diffraction" + ], + "metrics_updated": "2026-09-21T09:58:18Z", "oa_status": "green" }, "10.48550/arxiv.2311.02580": { @@ -2604,7 +2739,7 @@ "Optics", "Phase-contrast imaging" ], - "metrics_updated": "2026-09-05T17:16:21Z", + "metrics_updated": "2026-09-21T09:58:18Z", "oa_status": "green" } }, diff --git a/publications/articles/01_on_the_fly_scans_for_x_ray_ptychography.qmd b/publications/articles/01_on_the_fly_scans_for_x_ray_ptychography.qmd index 42221fb..68dcc1a 100644 --- a/publications/articles/01_on_the_fly_scans_for_x_ray_ptychography.qmd +++ b/publications/articles/01_on_the_fly_scans_for_x_ray_ptychography.qmd @@ -19,8 +19,8 @@ categories: - "mesoscopic physics" # --- end keyword categories --- # --- citation metrics (auto-managed; do not edit) --- -cited_by_count: 141 -fwci: 10.19 +cited_by_count: 142 +fwci: 10.09 citation_percentile: 98.6 is_top_10_percent: true is_oa: true @@ -33,12 +33,12 @@ counts_by_year: - [2023, 9] - [2024, 10] - [2025, 8] - - [2026, 6] + - [2026, 7] keywords: - "Ptychography" - "Optics" - "Mesoscopic physics" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/02_photo_double_ionization_of_ethylene_and_acetylene_.qmd b/publications/articles/02_photo_double_ionization_of_ethylene_and_acetylene_.qmd index 587b93a..30f4360 100644 --- a/publications/articles/02_photo_double_ionization_of_ethylene_and_acetylene_.qmd +++ b/publications/articles/02_photo_double_ionization_of_ethylene_and_acetylene_.qmd @@ -22,8 +22,8 @@ categories: # --- end keyword categories --- # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 50 -fwci: 3.05 -citation_percentile: 92.0 +fwci: 3.18 +citation_percentile: 92.4 is_top_10_percent: true is_oa: true oa_status: bronze @@ -43,7 +43,7 @@ keywords: - "Atomic physics" - "Excited state" - "Singlet state" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/03_low_dose_cryo_electron_ptychography_via_non_convex.qmd b/publications/articles/03_low_dose_cryo_electron_ptychography_via_non_convex.qmd index 5bab453..89f415d 100644 --- a/publications/articles/03_low_dose_cryo_electron_ptychography_via_non_convex.qmd +++ b/publications/articles/03_low_dose_cryo_electron_ptychography_via_non_convex.qmd @@ -19,9 +19,9 @@ categories: - "optics" # --- end keyword categories --- # --- citation metrics (auto-managed; do not edit) --- -cited_by_count: 85 -fwci: 6.85 -citation_percentile: 97.6 +cited_by_count: 86 +fwci: 7.06 +citation_percentile: 97.7 is_top_10_percent: true is_oa: true oa_status: gold @@ -33,12 +33,12 @@ counts_by_year: - [2023, 20] - [2024, 11] - [2025, 9] - - [2026, 3] + - [2026, 4] keywords: - "Ptychography" - "Phase retrieval" - "Optics" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/04_advanced_phase_reconstruction_methods_enabled_by_f.qmd b/publications/articles/04_advanced_phase_reconstruction_methods_enabled_by_f.qmd index fad21a0..5a3aea2 100644 --- a/publications/articles/04_advanced_phase_reconstruction_methods_enabled_by_f.qmd +++ b/publications/articles/04_advanced_phase_reconstruction_methods_enabled_by_f.qmd @@ -20,8 +20,8 @@ categories: # --- end keyword categories --- # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 14 -fwci: 1.03 -citation_percentile: 83.4 +fwci: 1.04 +citation_percentile: 83.2 is_oa: true oa_status: bronze counts_by_year: @@ -37,7 +37,7 @@ keywords: - "Scanning transmission electron microscopy" - "Transmission electron microscopy" - "Scanning confocal electron microscopy" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/05_electron_ptychography_of_single_biological_macromo.qmd b/publications/articles/05_electron_ptychography_of_single_biological_macromo.qmd index 70ca91a..b3f9421 100644 --- a/publications/articles/05_electron_ptychography_of_single_biological_macromo.qmd +++ b/publications/articles/05_electron_ptychography_of_single_biological_macromo.qmd @@ -16,7 +16,7 @@ categories: # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 5 fwci: 0.44 -citation_percentile: 78.0 +citation_percentile: 77.5 is_oa: true oa_status: bronze counts_by_year: @@ -28,7 +28,7 @@ counts_by_year: - [2024, 0] - [2025, 0] - [2026, 2] -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/06_towards_ptychography_with_structured_illumination_.qmd b/publications/articles/06_towards_ptychography_with_structured_illumination_.qmd index 7fbb1d9..53f1a2d 100644 --- a/publications/articles/06_towards_ptychography_with_structured_illumination_.qmd +++ b/publications/articles/06_towards_ptychography_with_structured_illumination_.qmd @@ -16,8 +16,8 @@ categories: - computational # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 7 -fwci: 0.74 -citation_percentile: 70.4 +fwci: 0.75 +citation_percentile: 70.3 is_oa: true oa_status: bronze counts_by_year: @@ -29,7 +29,7 @@ counts_by_year: - [2021, 3] - [2022, 0] - [2023, 4] -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/07_engineering_chiral_structures_through_strain_relea.qmd b/publications/articles/07_engineering_chiral_structures_through_strain_relea.qmd index da1a89b..a77ec28 100644 --- a/publications/articles/07_engineering_chiral_structures_through_strain_relea.qmd +++ b/publications/articles/07_engineering_chiral_structures_through_strain_relea.qmd @@ -22,7 +22,7 @@ categories: # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 1 fwci: 0.08 -citation_percentile: 39.4 +citation_percentile: 38.2 is_oa: true oa_status: bronze counts_by_year: @@ -38,7 +38,7 @@ keywords: - "Nanowire" - "Electron tomography" - "Electron" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/08_3d_imaging_using_haadf_stem_and_hrtem_atomic_elect.qmd b/publications/articles/08_3d_imaging_using_haadf_stem_and_hrtem_atomic_elect.qmd index d5ed58f..dae3c47 100644 --- a/publications/articles/08_3d_imaging_using_haadf_stem_and_hrtem_atomic_elect.qmd +++ b/publications/articles/08_3d_imaging_using_haadf_stem_and_hrtem_atomic_elect.qmd @@ -23,14 +23,14 @@ categories: # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 0 fwci: 0.00 -citation_percentile: 5.5 +citation_percentile: 5.8 is_oa: true oa_status: bronze keywords: - "High-resolution transmission electron microscopy" - "Electron tomography" - "Scanning transmission electron microscopy" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/09_the_4d_camera_an_87_khz_frame_rate_detector_for_co.qmd b/publications/articles/09_the_4d_camera_an_87_khz_frame_rate_detector_for_co.qmd index fafbc9e..229ebdb 100644 --- a/publications/articles/09_the_4d_camera_an_87_khz_frame_rate_detector_for_co.qmd +++ b/publications/articles/09_the_4d_camera_an_87_khz_frame_rate_detector_for_co.qmd @@ -17,7 +17,7 @@ categories: # --- end keyword categories --- # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 38 -fwci: 6.41 +fwci: 6.34 citation_percentile: 96.7 is_top_10_percent: true is_oa: true @@ -33,7 +33,7 @@ counts_by_year: - [2026, 1] keywords: - "Detector" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/10_phase_contrast_imaging_in_thick_heterogeneous_samp.qmd b/publications/articles/10_phase_contrast_imaging_in_thick_heterogeneous_samp.qmd index da91cbf..79923f3 100644 --- a/publications/articles/10_phase_contrast_imaging_in_thick_heterogeneous_samp.qmd +++ b/publications/articles/10_phase_contrast_imaging_in_thick_heterogeneous_samp.qmd @@ -19,7 +19,7 @@ categories: # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 2 fwci: 0.43 -citation_percentile: 61.3 +citation_percentile: 60.8 is_oa: true oa_status: bronze counts_by_year: @@ -34,7 +34,7 @@ counts_by_year: keywords: - "Phase contrast microscopy" - "Phase-contrast imaging" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/11_improving_the_speed_and_accuracy_of_large_scale_sc.qmd b/publications/articles/11_improving_the_speed_and_accuracy_of_large_scale_sc.qmd index 530e548..7091511 100644 --- a/publications/articles/11_improving_the_speed_and_accuracy_of_large_scale_sc.qmd +++ b/publications/articles/11_improving_the_speed_and_accuracy_of_large_scale_sc.qmd @@ -23,8 +23,8 @@ categories: # --- end keyword categories --- # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 2 -fwci: 0.16 -citation_percentile: 43.7 +fwci: 0.15 +citation_percentile: 40.4 is_oa: true oa_status: bronze counts_by_year: @@ -41,7 +41,7 @@ keywords: - "Electron" - "Scattering" - "Transmission electron microscopy" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/12_achieving_high_resolution_of_large_specimens_using.qmd b/publications/articles/12_achieving_high_resolution_of_large_specimens_using.qmd index f6b0a59..8913837 100644 --- a/publications/articles/12_achieving_high_resolution_of_large_specimens_using.qmd +++ b/publications/articles/12_achieving_high_resolution_of_large_specimens_using.qmd @@ -15,12 +15,12 @@ categories: # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 0 fwci: 0.00 -citation_percentile: 3.1 +citation_percentile: 3.3 is_oa: true oa_status: bronze keywords: - "Tomography" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/13_reconstructing_the_scattering_matrix_from_scanning.qmd b/publications/articles/13_reconstructing_the_scattering_matrix_from_scanning.qmd index d3e9c65..485ad4a 100644 --- a/publications/articles/13_reconstructing_the_scattering_matrix_from_scanning.qmd +++ b/publications/articles/13_reconstructing_the_scattering_matrix_from_scanning.qmd @@ -36,7 +36,7 @@ keywords: - "Optics" - "Diffraction" - "Wavefront" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/14_a_single_projection_three_dimensional_reconstructi.qmd b/publications/articles/14_a_single_projection_three_dimensional_reconstructi.qmd index 55c54a9..c76fc17 100644 --- a/publications/articles/14_a_single_projection_three_dimensional_reconstructi.qmd +++ b/publications/articles/14_a_single_projection_three_dimensional_reconstructi.qmd @@ -34,7 +34,7 @@ keywords: - "Scanning transmission electron microscopy" - "Microscopy" - "Yttrium" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/15_a_fast_algorithm_for_scanning_transmission_electro.qmd b/publications/articles/15_a_fast_algorithm_for_scanning_transmission_electro.qmd index 73b0a3b..05d33e3 100644 --- a/publications/articles/15_a_fast_algorithm_for_scanning_transmission_electro.qmd +++ b/publications/articles/15_a_fast_algorithm_for_scanning_transmission_electro.qmd @@ -24,8 +24,8 @@ categories: # --- end keyword categories --- # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 17 -fwci: 2.12 -citation_percentile: 88.4 +fwci: 2.05 +citation_percentile: 88.1 is_oa: true oa_status: hybrid counts_by_year: @@ -41,7 +41,7 @@ keywords: - "Prism" - "Scanning transmission electron microscopy" - "Scattering" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/16_py4dstem_a_software_package_for_four_dimensional_s.qmd b/publications/articles/16_py4dstem_a_software_package_for_four_dimensional_s.qmd index c9c0951..61f9cd2 100644 --- a/publications/articles/16_py4dstem_a_software_package_for_four_dimensional_s.qmd +++ b/publications/articles/16_py4dstem_a_software_package_for_four_dimensional_s.qmd @@ -16,9 +16,9 @@ categories: - imaging - journal article # --- citation metrics (auto-managed; do not edit) --- -cited_by_count: 345 -fwci: 28.79 -citation_percentile: 99.7 +cited_by_count: 350 +fwci: 27.65 +citation_percentile: 99.6 is_top_1_percent: true is_top_10_percent: true is_oa: true @@ -27,14 +27,14 @@ counts_by_year: - [2019, 0] - [2020, 1] - [2021, 17] - - [2022, 32] + - [2022, 31] - [2023, 58] - [2024, 83] - [2025, 85] - - [2026, 69] + - [2026, 75] keywords: - "Software" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/17_scattering_matrix_determination_in_crystalline_mat.qmd b/publications/articles/17_scattering_matrix_determination_in_crystalline_mat.qmd index edf4f7f..ec4c662 100644 --- a/publications/articles/17_scattering_matrix_determination_in_crystalline_mat.qmd +++ b/publications/articles/17_scattering_matrix_determination_in_crystalline_mat.qmd @@ -25,8 +25,8 @@ categories: # --- end keyword categories --- # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 9 -fwci: 1.21 -citation_percentile: 83.8 +fwci: 1.17 +citation_percentile: 83.2 is_oa: true oa_status: green counts_by_year: @@ -44,7 +44,7 @@ keywords: - "Optics" - "Transmission electron microscopy" - "Electron scattering" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/18_scalable_multicomponent_spectral_analysis_for_high.qmd b/publications/articles/18_scalable_multicomponent_spectral_analysis_for_high.qmd index d7cc8f2..9dfdee5 100644 --- a/publications/articles/18_scalable_multicomponent_spectral_analysis_for_high.qmd +++ b/publications/articles/18_scalable_multicomponent_spectral_analysis_for_high.qmd @@ -31,7 +31,7 @@ keywords: - "Annotation" - "Software" - "Parametric statistics" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/19_depth_resolution_in_ptychography.qmd b/publications/articles/19_depth_resolution_in_ptychography.qmd new file mode 100644 index 0000000..95c6923 --- /dev/null +++ b/publications/articles/19_depth_resolution_in_ptychography.qmd @@ -0,0 +1,37 @@ +--- +title: "Depth Resolution in Ptychography" +type: "article" +author: "T. U. o. Sheffield, S. You" +year: "2021" +publication: "Proceedings of the European Microscopy Congress 2020" +preprint: "" +doi: "10.22443/rms.emc2020.657" +materials: "" +code_url: "" +project_page_url: "" +toc: false +categories: + - ptychography + - conference paper +# --- citation metrics (auto-managed; do not edit) --- +cited_by_count: 0 +fwci: 0.00 +citation_percentile: 3.7 +oa_status: closed +keywords: + - "Ptychography" +metrics_updated: "2026-09-21T09:58:18Z" +# --- end citation metrics --- +--- +## Citation (APA 7) + +> Depth Resolution in Ptychography +T. U. o. Sheffield, S. You +Proceedings of the European Microscopy Congress 2020 + + +## Abstract + +[Abstract will be added manually] + + diff --git a/publications/articles/19_phase_contrast_imaging_of_multiply_scattering_exte.qmd b/publications/articles/20_phase_contrast_imaging_of_multiply_scattering_exte.qmd similarity index 97% rename from publications/articles/19_phase_contrast_imaging_of_multiply_scattering_exte.qmd rename to publications/articles/20_phase_contrast_imaging_of_multiply_scattering_exte.qmd index 2aee461..a62a7c0 100644 --- a/publications/articles/19_phase_contrast_imaging_of_multiply_scattering_exte.qmd +++ b/publications/articles/20_phase_contrast_imaging_of_multiply_scattering_exte.qmd @@ -38,7 +38,7 @@ counts_by_year: keywords: - "Scattering" - "Optics" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/20_real_time_interactive_ptychography_from_electron_e.qmd b/publications/articles/21_real_time_interactive_ptychography_from_electron_e.qmd similarity index 96% rename from publications/articles/20_real_time_interactive_ptychography_from_electron_e.qmd rename to publications/articles/21_real_time_interactive_ptychography_from_electron_e.qmd index a01f352..57f5ce1 100644 --- a/publications/articles/20_real_time_interactive_ptychography_from_electron_e.qmd +++ b/publications/articles/21_real_time_interactive_ptychography_from_electron_e.qmd @@ -20,7 +20,7 @@ categories: # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 6 fwci: 1.34 -citation_percentile: 78.9 +citation_percentile: 78.6 is_oa: true oa_status: bronze counts_by_year: @@ -37,7 +37,7 @@ keywords: - "Ptychography" - "Frame rate" - "Scanning transmission electron microscopy" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/21_materials_science_applications_and_analysis_of_ver.qmd b/publications/articles/22_materials_science_applications_and_analysis_of_ver.qmd similarity index 97% rename from publications/articles/21_materials_science_applications_and_analysis_of_ver.qmd rename to publications/articles/22_materials_science_applications_and_analysis_of_ver.qmd index 84855f7..e2c4ad6 100644 --- a/publications/articles/21_materials_science_applications_and_analysis_of_ver.qmd +++ b/publications/articles/22_materials_science_applications_and_analysis_of_ver.qmd @@ -16,10 +16,10 @@ categories: # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 0 fwci: 0.00 -citation_percentile: 3.9 +citation_percentile: 4.2 is_oa: true oa_status: bronze -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/22_a_faster_image_simulation_algorithm_for_scanning_t.qmd b/publications/articles/23_a_faster_image_simulation_algorithm_for_scanning_t.qmd similarity index 95% rename from publications/articles/22_a_faster_image_simulation_algorithm_for_scanning_t.qmd rename to publications/articles/23_a_faster_image_simulation_algorithm_for_scanning_t.qmd index 3ccbb9e..c950561 100644 --- a/publications/articles/22_a_faster_image_simulation_algorithm_for_scanning_t.qmd +++ b/publications/articles/23_a_faster_image_simulation_algorithm_for_scanning_t.qmd @@ -22,13 +22,13 @@ categories: # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 0 fwci: 0.00 -citation_percentile: 4.8 +citation_percentile: 5.1 is_oa: true oa_status: bronze keywords: - "Transmission electron microscopy" - "Scanning transmission electron microscopy" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/23_smpr3d_an_open_source_toolkit_for_3d_phase_contras.qmd b/publications/articles/24_smpr3d_an_open_source_toolkit_for_3d_phase_contras.qmd similarity index 97% rename from publications/articles/23_smpr3d_an_open_source_toolkit_for_3d_phase_contras.qmd rename to publications/articles/24_smpr3d_an_open_source_toolkit_for_3d_phase_contras.qmd index b668f25..f6ef17a 100644 --- a/publications/articles/23_smpr3d_an_open_source_toolkit_for_3d_phase_contras.qmd +++ b/publications/articles/24_smpr3d_an_open_source_toolkit_for_3d_phase_contras.qmd @@ -20,13 +20,13 @@ categories: # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 0 fwci: 0.00 -citation_percentile: 9.5 +citation_percentile: 9.7 is_oa: true oa_status: bronze keywords: - "Phase contrast microscopy" - "Open source" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/24_prismatic_20_simulation_software_for_scanning_and_.qmd b/publications/articles/25_prismatic_20_simulation_software_for_scanning_and_.qmd similarity index 97% rename from publications/articles/24_prismatic_20_simulation_software_for_scanning_and_.qmd rename to publications/articles/25_prismatic_20_simulation_software_for_scanning_and_.qmd index 7764153..da146b5 100644 --- a/publications/articles/24_prismatic_20_simulation_software_for_scanning_and_.qmd +++ b/publications/articles/25_prismatic_20_simulation_software_for_scanning_and_.qmd @@ -22,8 +22,8 @@ categories: # --- end keyword categories --- # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 99 -fwci: 10.61 -citation_percentile: 98.8 +fwci: 10.24 +citation_percentile: 98.7 is_top_10_percent: true is_oa: true oa_status: hybrid @@ -39,7 +39,7 @@ counts_by_year: keywords: - "Computational science" - "Scanning transmission electron microscopy" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/25_a_three_dimensional_reconstruction_algorithm_for_s.qmd b/publications/articles/26_a_three_dimensional_reconstruction_algorithm_for_s.qmd similarity index 97% rename from publications/articles/25_a_three_dimensional_reconstruction_algorithm_for_s.qmd rename to publications/articles/26_a_three_dimensional_reconstruction_algorithm_for_s.qmd index 17c5002..d50f06f 100644 --- a/publications/articles/25_a_three_dimensional_reconstruction_algorithm_for_s.qmd +++ b/publications/articles/26_a_three_dimensional_reconstruction_algorithm_for_s.qmd @@ -26,8 +26,8 @@ categories: # --- end keyword categories --- # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 14 -fwci: 0.89 -citation_percentile: 68.5 +fwci: 0.87 +citation_percentile: 67.5 is_oa: true oa_status: green counts_by_year: @@ -46,7 +46,7 @@ keywords: - "Scanning transmission electron microscopy" - "Microscopy" - "Optics" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/26_real_time_interactive_4d_stem_phase_contrast_imagi.qmd b/publications/articles/27_real_time_interactive_4d_stem_phase_contrast_imagi.qmd similarity index 94% rename from publications/articles/26_real_time_interactive_4d_stem_phase_contrast_imagi.qmd rename to publications/articles/27_real_time_interactive_4d_stem_phase_contrast_imagi.qmd index 59e7687..98ad750 100644 --- a/publications/articles/26_real_time_interactive_4d_stem_phase_contrast_imagi.qmd +++ b/publications/articles/27_real_time_interactive_4d_stem_phase_contrast_imagi.qmd @@ -21,8 +21,8 @@ categories: # --- end keyword categories --- # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 28 -fwci: 3.05 -citation_percentile: 92.2 +fwci: 2.93 +citation_percentile: 92.0 is_top_10_percent: true is_oa: true oa_status: green @@ -39,7 +39,7 @@ keywords: - "Detector" - "Scanning transmission electron microscopy" - "Frame rate" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/27_simultaneous_successive_twinning_captured_by_atomi.qmd b/publications/articles/28_simultaneous_successive_twinning_captured_by_atomi.qmd similarity index 96% rename from publications/articles/27_simultaneous_successive_twinning_captured_by_atomi.qmd rename to publications/articles/28_simultaneous_successive_twinning_captured_by_atomi.qmd index a9700cb..fb3e0ec 100644 --- a/publications/articles/27_simultaneous_successive_twinning_captured_by_atomi.qmd +++ b/publications/articles/28_simultaneous_successive_twinning_captured_by_atomi.qmd @@ -24,11 +24,11 @@ categories: # --- end keyword categories --- # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 26 -fwci: 3.05 -citation_percentile: 92.2 +fwci: 2.93 +citation_percentile: 92.0 is_top_10_percent: true is_oa: true -oa_status: green +oa_status: hybrid counts_by_year: - [2019, 0] - [2020, 0] @@ -45,7 +45,7 @@ keywords: - "Electron tomography" - "Nanoparticle" - "Atomic units" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/28_structured_illumination_electron_ptychography_at_t.qmd b/publications/articles/29_structured_illumination_electron_ptychography_at_t.qmd similarity index 94% rename from publications/articles/28_structured_illumination_electron_ptychography_at_t.qmd rename to publications/articles/29_structured_illumination_electron_ptychography_at_t.qmd index 5500ce6..3a2c14a 100644 --- a/publications/articles/28_structured_illumination_electron_ptychography_at_t.qmd +++ b/publications/articles/29_structured_illumination_electron_ptychography_at_t.qmd @@ -18,8 +18,8 @@ categories: # --- end keyword categories --- # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 4 -fwci: 0.89 -citation_percentile: 70.2 +fwci: 0.88 +citation_percentile: 69.7 is_oa: true oa_status: bronze counts_by_year: @@ -34,7 +34,7 @@ counts_by_year: keywords: - "Atomic units" - "Ptychography" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/29_qualitative_phase_contrast_imaging_using_interfero.qmd b/publications/articles/30_qualitative_phase_contrast_imaging_using_interfero.qmd similarity index 97% rename from publications/articles/29_qualitative_phase_contrast_imaging_using_interfero.qmd rename to publications/articles/30_qualitative_phase_contrast_imaging_using_interfero.qmd index 2afbede..9a23e43 100644 --- a/publications/articles/29_qualitative_phase_contrast_imaging_using_interfero.qmd +++ b/publications/articles/30_qualitative_phase_contrast_imaging_using_interfero.qmd @@ -28,7 +28,7 @@ keywords: - "Interferometry" - "Phase contrast microscopy" - "Phase-contrast imaging" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/30_observation_of_formation_and_local_structures_of_m.qmd b/publications/articles/31_observation_of_formation_and_local_structures_of_m.qmd similarity index 97% rename from publications/articles/30_observation_of_formation_and_local_structures_of_m.qmd rename to publications/articles/31_observation_of_formation_and_local_structures_of_m.qmd index bde04a1..992ba0d 100644 --- a/publications/articles/30_observation_of_formation_and_local_structures_of_m.qmd +++ b/publications/articles/31_observation_of_formation_and_local_structures_of_m.qmd @@ -21,8 +21,8 @@ categories: # --- end keyword categories --- # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 45 -fwci: 2.81 -citation_percentile: 91.6 +fwci: 2.72 +citation_percentile: 91.3 is_top_10_percent: true is_oa: true oa_status: gold @@ -38,7 +38,7 @@ counts_by_year: keywords: - "Transmission electron microscopy" - "Electron microscope" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/31_resolution_of_virtual_depth_sectioning_from_four_d.qmd b/publications/articles/32_resolution_of_virtual_depth_sectioning_from_four_d.qmd similarity index 97% rename from publications/articles/31_resolution_of_virtual_depth_sectioning_from_four_d.qmd rename to publications/articles/32_resolution_of_virtual_depth_sectioning_from_four_d.qmd index 48c981e..ddef59e 100644 --- a/publications/articles/31_resolution_of_virtual_depth_sectioning_from_four_d.qmd +++ b/publications/articles/32_resolution_of_virtual_depth_sectioning_from_four_d.qmd @@ -23,8 +23,8 @@ categories: # --- end keyword categories --- # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 14 -fwci: 2.71 -citation_percentile: 90.7 +fwci: 2.77 +citation_percentile: 90.6 is_top_10_percent: true is_oa: true oa_status: hybrid @@ -44,7 +44,7 @@ keywords: - "Dark field microscopy" - "Scanning transmission electron microscopy" - "Scattering" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/32_imaging_the_electron_charge_density_in_monolayer_m.qmd b/publications/articles/33_imaging_the_electron_charge_density_in_monolayer_m.qmd similarity index 95% rename from publications/articles/32_imaging_the_electron_charge_density_in_monolayer_m.qmd rename to publications/articles/33_imaging_the_electron_charge_density_in_monolayer_m.qmd index dc7e87a..e861ff2 100644 --- a/publications/articles/32_imaging_the_electron_charge_density_in_monolayer_m.qmd +++ b/publications/articles/33_imaging_the_electron_charge_density_in_monolayer_m.qmd @@ -22,9 +22,9 @@ categories: - "valence electron" # --- end keyword categories --- # --- citation metrics (auto-managed; do not edit) --- -cited_by_count: 33 -fwci: 6.36 -citation_percentile: 96.0 +cited_by_count: 34 +fwci: 6.72 +citation_percentile: 96.3 is_top_10_percent: true is_oa: true oa_status: gold @@ -36,7 +36,7 @@ counts_by_year: - [2023, 1] - [2024, 10] - [2025, 12] - - [2026, 10] + - [2026, 11] keywords: - "Core charge" - "Electron" @@ -44,7 +44,7 @@ keywords: - "Scanning transmission electron microscopy" - "Atomic physics" - "Valence electron" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/33_observation_of_simultaneous_successive_twinning_us.qmd b/publications/articles/34_observation_of_simultaneous_successive_twinning_us.qmd similarity index 94% rename from publications/articles/33_observation_of_simultaneous_successive_twinning_us.qmd rename to publications/articles/34_observation_of_simultaneous_successive_twinning_us.qmd index ef4e2c4..cda865a 100644 --- a/publications/articles/33_observation_of_simultaneous_successive_twinning_us.qmd +++ b/publications/articles/34_observation_of_simultaneous_successive_twinning_us.qmd @@ -21,14 +21,14 @@ categories: # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 0 fwci: 0.00 -citation_percentile: 6.9 +citation_percentile: 7.1 is_oa: true oa_status: bronze keywords: - "Crystal twinning" - "Electron tomography" - "Electron" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/35_magnetic_phase_imaging_using_lorentz_near_field_el.qmd b/publications/articles/35_magnetic_phase_imaging_using_lorentz_near_field_el.qmd new file mode 100644 index 0000000..5e2f493 --- /dev/null +++ b/publications/articles/35_magnetic_phase_imaging_using_lorentz_near_field_el.qmd @@ -0,0 +1,44 @@ +--- +title: "Magnetic Phase Imaging using Lorentz Near-field Electron Ptychography" +type: "article" +author: "S. You, P. Lu, A. Kovács, T. Schachinger, F. Allars, R. E. Dunin‐Borkowski, A. Maiden" +year: "2023" +publication: "arXiv (Cornell University)" +preprint: "" +doi: "10.48550/arxiv.2308.10870" +materials: "" +code_url: "" +project_page_url: "" +toc: false +categories: + - ptychography + - imaging + # --- begin keyword categories (auto-managed) --- + - "optics" + - "amplitude" + - "diffraction" + # --- end keyword categories --- +# --- citation metrics (auto-managed; do not edit) --- +cited_by_count: 0 +is_oa: true +oa_status: green +keywords: + - "Optics" + - "Ptychography" + - "Amplitude" + - "Diffraction" +metrics_updated: "2026-09-21T09:58:18Z" +# --- end citation metrics --- +--- +## Citation (APA 7) + +> Magnetic Phase Imaging using Lorentz Near-field Electron Ptychography +S. You, P. Lu, A. Kovács, T. Schachinger, F. Allars, R. E. Dunin‐Borkowski, A. Maiden +arXiv (Cornell University) + + +## Abstract + +[Abstract will be added manually] + + diff --git a/publications/articles/34_controlled_self_assembly_of_gold_nanotetrahedra_in.qmd b/publications/articles/36_controlled_self_assembly_of_gold_nanotetrahedra_in.qmd similarity index 96% rename from publications/articles/34_controlled_self_assembly_of_gold_nanotetrahedra_in.qmd rename to publications/articles/36_controlled_self_assembly_of_gold_nanotetrahedra_in.qmd index 274bacc..6cd0622 100644 --- a/publications/articles/34_controlled_self_assembly_of_gold_nanotetrahedra_in.qmd +++ b/publications/articles/36_controlled_self_assembly_of_gold_nanotetrahedra_in.qmd @@ -20,8 +20,8 @@ categories: - "curvature" # --- end keyword categories --- # --- citation metrics (auto-managed; do not edit) --- -cited_by_count: 32 -fwci: 2.39 +cited_by_count: 33 +fwci: 2.37 citation_percentile: 89.8 is_oa: true oa_status: green @@ -33,13 +33,13 @@ counts_by_year: - [2023, 0] - [2024, 14] - [2025, 10] - - [2026, 8] + - [2026, 9] keywords: - "Quasicrystal" - "Tetrahedron" - "Self-assembly" - "Curvature" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/35_virtual_imaging_enabled_by_scattering_matrix_recon.qmd b/publications/articles/37_virtual_imaging_enabled_by_scattering_matrix_recon.qmd similarity index 96% rename from publications/articles/35_virtual_imaging_enabled_by_scattering_matrix_recon.qmd rename to publications/articles/37_virtual_imaging_enabled_by_scattering_matrix_recon.qmd index 268ec47..e7a3bc7 100644 --- a/publications/articles/35_virtual_imaging_enabled_by_scattering_matrix_recon.qmd +++ b/publications/articles/37_virtual_imaging_enabled_by_scattering_matrix_recon.qmd @@ -22,14 +22,14 @@ categories: # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 0 fwci: 0.00 -citation_percentile: 12.9 +citation_percentile: 13.6 is_oa: true oa_status: bronze keywords: - "Scanning transmission electron microscopy" - "Scattering" - "Transmission electron microscopy" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/36_using_4d_stem_to_measure_the_nanoscale_structure_o.qmd b/publications/articles/38_using_4d_stem_to_measure_the_nanoscale_structure_o.qmd similarity index 94% rename from publications/articles/36_using_4d_stem_to_measure_the_nanoscale_structure_o.qmd rename to publications/articles/38_using_4d_stem_to_measure_the_nanoscale_structure_o.qmd index 1a96d8d..aca67fc 100644 --- a/publications/articles/36_using_4d_stem_to_measure_the_nanoscale_structure_o.qmd +++ b/publications/articles/38_using_4d_stem_to_measure_the_nanoscale_structure_o.qmd @@ -20,12 +20,12 @@ categories: # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 0 fwci: 0.00 -citation_percentile: 13.1 +citation_percentile: 13.8 is_oa: true oa_status: bronze keywords: - "Nanoscopic scale" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/37_using_a_fast_hybrid_pixel_detector_for_dose_effici.qmd b/publications/articles/39_using_a_fast_hybrid_pixel_detector_for_dose_effici.qmd similarity index 97% rename from publications/articles/37_using_a_fast_hybrid_pixel_detector_for_dose_effici.qmd rename to publications/articles/39_using_a_fast_hybrid_pixel_detector_for_dose_effici.qmd index 59d896a..db77e5e 100644 --- a/publications/articles/37_using_a_fast_hybrid_pixel_detector_for_dose_effici.qmd +++ b/publications/articles/39_using_a_fast_hybrid_pixel_detector_for_dose_effici.qmd @@ -22,8 +22,8 @@ categories: # --- end keyword categories --- # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 11 -fwci: 0.91 -citation_percentile: 71.1 +fwci: 0.89 +citation_percentile: 70.1 is_oa: true oa_status: gold counts_by_year: @@ -39,7 +39,7 @@ keywords: - "Detector" - "Crystallite" - "Optics" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/38_high_resolution_3d_phase_contrast_imaging_beyond_t.qmd b/publications/articles/40_high_resolution_3d_phase_contrast_imaging_beyond_t.qmd similarity index 96% rename from publications/articles/38_high_resolution_3d_phase_contrast_imaging_beyond_t.qmd rename to publications/articles/40_high_resolution_3d_phase_contrast_imaging_beyond_t.qmd index 91bf4c3..418f949 100644 --- a/publications/articles/38_high_resolution_3d_phase_contrast_imaging_beyond_t.qmd +++ b/publications/articles/40_high_resolution_3d_phase_contrast_imaging_beyond_t.qmd @@ -36,7 +36,7 @@ keywords: - "Electron tomography" - "Optics" - "Phase-contrast imaging" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/41_lorentz_near_field_electron_ptychography.qmd b/publications/articles/41_lorentz_near_field_electron_ptychography.qmd new file mode 100644 index 0000000..edb88aa --- /dev/null +++ b/publications/articles/41_lorentz_near_field_electron_ptychography.qmd @@ -0,0 +1,56 @@ +--- +title: "Lorentz near-field electron ptychography" +type: "article" +author: "S. You, P. Lu, T. Schachinger, A. Kovács, R. E. Dunin-Borkowski, A. M. Maiden" +year: "2023" +publication: "Applied Physics Letters 123" +preprint: "" +doi: "10.1063/5.0169788" +materials: "" +code_url: "" +project_page_url: "" +toc: false +categories: + - ptychography + - journal article + # --- begin keyword categories (auto-managed) --- + - "electron holography" + - "optics" + - "holography" + # --- end keyword categories --- +# --- citation metrics (auto-managed; do not edit) --- +cited_by_count: 12 +fwci: 3.02 +citation_percentile: 91.8 +is_top_10_percent: true +is_oa: true +oa_status: hybrid +counts_by_year: + - [2019, 0] + - [2020, 0] + - [2021, 0] + - [2022, 0] + - [2023, 1] + - [2024, 3] + - [2025, 6] + - [2026, 2] +keywords: + - "Electron holography" + - "Ptychography" + - "Optics" + - "Holography" +metrics_updated: "2026-09-21T09:58:18Z" +# --- end citation metrics --- +--- +## Citation (APA 7) + +> Lorentz near-field electron ptychography +S. You, P. Lu, T. Schachinger, A. Kovács, R. E. Dunin-Borkowski, A. M. Maiden +Applied Physics Letters 123 + + +## Abstract + +Over the past few years, electron ptychography has drawn considerable attention for its ability to recover high contrast and ultra-high resolution images without the need for high quality electron optics. In this Letter, we focus on electron ptychography's other potential benefits: quantitatively mapping phase variations resulting from magnetic and electric fields over extended fields of view. To this end, we propose an implementation of near-field ptychography that employs an amplitude mask located in the electron microscope's condenser aperture plane. We demonstrate the capabilities of our method by imaging a magnetic Permalloy sample and compare our results with those of off-axis electron holography. + + diff --git a/publications/articles/39_analysis_of_strain_and_defects_in_tellurium_wse2_m.qmd b/publications/articles/42_analysis_of_strain_and_defects_in_tellurium_wse2_m.qmd similarity index 97% rename from publications/articles/39_analysis_of_strain_and_defects_in_tellurium_wse2_m.qmd rename to publications/articles/42_analysis_of_strain_and_defects_in_tellurium_wse2_m.qmd index 50dcc75..d6616fa 100644 --- a/publications/articles/39_analysis_of_strain_and_defects_in_tellurium_wse2_m.qmd +++ b/publications/articles/42_analysis_of_strain_and_defects_in_tellurium_wse2_m.qmd @@ -24,8 +24,8 @@ categories: # --- end keyword categories --- # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 18 -fwci: 1.34 -citation_percentile: 79.0 +fwci: 1.29 +citation_percentile: 78.1 is_oa: true oa_status: hybrid counts_by_year: @@ -43,7 +43,7 @@ keywords: - "Semiconductor" - "Condensed matter physics" - "Moiré pattern" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/40_solving_complex_nanostructures_with_ptychographic_.qmd b/publications/articles/43_solving_complex_nanostructures_with_ptychographic_.qmd similarity index 98% rename from publications/articles/40_solving_complex_nanostructures_with_ptychographic_.qmd rename to publications/articles/43_solving_complex_nanostructures_with_ptychographic_.qmd index 485b1ca..cdda501 100644 --- a/publications/articles/40_solving_complex_nanostructures_with_ptychographic_.qmd +++ b/publications/articles/43_solving_complex_nanostructures_with_ptychographic_.qmd @@ -25,7 +25,7 @@ categories: # --- end keyword categories --- # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 56 -fwci: 14.61 +fwci: 14.07 citation_percentile: 99.5 is_top_1_percent: true is_top_10_percent: true @@ -46,7 +46,7 @@ keywords: - "Atomic units" - "Electron diffraction" - "High-resolution transmission electron microscopy" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/41_towards_in_situ_4d_stem_observation_of_texture_evo.qmd b/publications/articles/44_towards_in_situ_4d_stem_observation_of_texture_evo.qmd similarity index 95% rename from publications/articles/41_towards_in_situ_4d_stem_observation_of_texture_evo.qmd rename to publications/articles/44_towards_in_situ_4d_stem_observation_of_texture_evo.qmd index 371c796..933849c 100644 --- a/publications/articles/41_towards_in_situ_4d_stem_observation_of_texture_evo.qmd +++ b/publications/articles/44_towards_in_situ_4d_stem_observation_of_texture_evo.qmd @@ -22,13 +22,13 @@ categories: # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 0 fwci: 0.00 -citation_percentile: 18.2 +citation_percentile: 17.0 is_oa: true oa_status: diamond keywords: - "In situ" - "Nano-" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/42_information_transfer_improvement_by_parallax_corre.qmd b/publications/articles/45_information_transfer_improvement_by_parallax_corre.qmd similarity index 94% rename from publications/articles/42_information_transfer_improvement_by_parallax_corre.qmd rename to publications/articles/45_information_transfer_improvement_by_parallax_corre.qmd index ac31488..65c8a5c 100644 --- a/publications/articles/42_information_transfer_improvement_by_parallax_corre.qmd +++ b/publications/articles/45_information_transfer_improvement_by_parallax_corre.qmd @@ -20,13 +20,13 @@ categories: # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 0 fwci: 0.00 -citation_percentile: 35.4 +citation_percentile: 35.3 is_oa: true oa_status: diamond keywords: - "Parallax" - "Ptychography" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/43_using_phase_contrast_4d_stem_to_solve_3d_inorganic.qmd b/publications/articles/46_using_phase_contrast_4d_stem_to_solve_3d_inorganic.qmd similarity index 94% rename from publications/articles/43_using_phase_contrast_4d_stem_to_solve_3d_inorganic.qmd rename to publications/articles/46_using_phase_contrast_4d_stem_to_solve_3d_inorganic.qmd index e91e392..059fb43 100644 --- a/publications/articles/43_using_phase_contrast_4d_stem_to_solve_3d_inorganic.qmd +++ b/publications/articles/46_using_phase_contrast_4d_stem_to_solve_3d_inorganic.qmd @@ -23,13 +23,13 @@ categories: # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 0 fwci: 0.00 -citation_percentile: 4.9 +citation_percentile: 5.1 oa_status: closed keywords: - "Phase contrast microscopy" - "Nanostructure" - "Nanotechnology" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/44_information_transfer_improvement_by_parallax_corre.qmd b/publications/articles/47_information_transfer_improvement_by_parallax_corre.qmd similarity index 98% rename from publications/articles/44_information_transfer_improvement_by_parallax_corre.qmd rename to publications/articles/47_information_transfer_improvement_by_parallax_corre.qmd index 23ecb7b..d905a92 100644 --- a/publications/articles/44_information_transfer_improvement_by_parallax_corre.qmd +++ b/publications/articles/47_information_transfer_improvement_by_parallax_corre.qmd @@ -20,13 +20,13 @@ categories: # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 0 fwci: 0.00 -citation_percentile: 12.5 +citation_percentile: 10.5 oa_status: closed keywords: - "Parallax" - "Ptychography" - "Optics" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/45_the_4d_camera_an_87_khz_direct_electron_detector_f.qmd b/publications/articles/48_the_4d_camera_an_87_khz_direct_electron_detector_f.qmd similarity index 97% rename from publications/articles/45_the_4d_camera_an_87_khz_direct_electron_detector_f.qmd rename to publications/articles/48_the_4d_camera_an_87_khz_direct_electron_detector_f.qmd index 2ff379b..e3a5f06 100644 --- a/publications/articles/45_the_4d_camera_an_87_khz_direct_electron_detector_f.qmd +++ b/publications/articles/48_the_4d_camera_an_87_khz_direct_electron_detector_f.qmd @@ -23,8 +23,8 @@ categories: # --- end keyword categories --- # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 35 -fwci: 3.90 -citation_percentile: 94.9 +fwci: 3.62 +citation_percentile: 94.6 is_top_10_percent: true is_oa: true oa_status: hybrid @@ -44,7 +44,7 @@ keywords: - "Scanning confocal electron microscopy" - "Conventional transmission electron microscope" - "Transmission electron microscopy" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/46_multi_slice_electron_ptychographic_tomography_for_.qmd b/publications/articles/49_multi_slice_electron_ptychographic_tomography_for_.qmd similarity index 97% rename from publications/articles/46_multi_slice_electron_ptychographic_tomography_for_.qmd rename to publications/articles/49_multi_slice_electron_ptychographic_tomography_for_.qmd index 18b39cc..f318104 100644 --- a/publications/articles/46_multi_slice_electron_ptychographic_tomography_for_.qmd +++ b/publications/articles/49_multi_slice_electron_ptychographic_tomography_for_.qmd @@ -17,8 +17,8 @@ categories: - journal article # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 8 -fwci: 2.64 -citation_percentile: 91.0 +fwci: 2.55 +citation_percentile: 90.9 is_top_10_percent: true is_oa: true oa_status: gold @@ -31,7 +31,7 @@ counts_by_year: - [2024, 0] - [2025, 6] - [2026, 2] -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git "a/publications/articles/47_near_isotropic_sub_\303\245ngstrom_3d_resolution_phase_co.qmd" "b/publications/articles/50_near_isotropic_sub_\303\245ngstrom_3d_resolution_phase_co.qmd" similarity index 96% rename from "publications/articles/47_near_isotropic_sub_\303\245ngstrom_3d_resolution_phase_co.qmd" rename to "publications/articles/50_near_isotropic_sub_\303\245ngstrom_3d_resolution_phase_co.qmd" index 50108a4..9e33bd5 100644 --- "a/publications/articles/47_near_isotropic_sub_\303\245ngstrom_3d_resolution_phase_co.qmd" +++ "b/publications/articles/50_near_isotropic_sub_\303\245ngstrom_3d_resolution_phase_co.qmd" @@ -24,8 +24,8 @@ categories: # --- end keyword categories --- # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 11 -fwci: 4.44 -citation_percentile: 95.7 +fwci: 4.16 +citation_percentile: 95.3 is_top_10_percent: true is_oa: true oa_status: hybrid @@ -44,7 +44,7 @@ keywords: - "Phase-contrast imaging" - "Phase contrast microscopy" - "Optics" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git "a/publications/articles/48_sub_\303\245ngstrom_3d_resolution_volume_imaging_beyond_t.qmd" "b/publications/articles/51_sub_\303\245ngstrom_3d_resolution_volume_imaging_beyond_t.qmd" similarity index 94% rename from "publications/articles/48_sub_\303\245ngstrom_3d_resolution_volume_imaging_beyond_t.qmd" rename to "publications/articles/51_sub_\303\245ngstrom_3d_resolution_volume_imaging_beyond_t.qmd" index 7d22e3c..9b8e75e 100644 --- "a/publications/articles/48_sub_\303\245ngstrom_3d_resolution_volume_imaging_beyond_t.qmd" +++ "b/publications/articles/51_sub_\303\245ngstrom_3d_resolution_volume_imaging_beyond_t.qmd" @@ -21,14 +21,14 @@ categories: # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 0 fwci: 0.00 -citation_percentile: 5.1 +citation_percentile: 5.3 is_oa: true oa_status: bronze keywords: - "Ptychography" - "Tomography" - "Electron tomography" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/52_electron_ptychography_in_the_fresnel_diffraction_r.qmd b/publications/articles/52_electron_ptychography_in_the_fresnel_diffraction_r.qmd new file mode 100644 index 0000000..cc854a9 --- /dev/null +++ b/publications/articles/52_electron_ptychography_in_the_fresnel_diffraction_r.qmd @@ -0,0 +1,41 @@ +--- +title: "Electron Ptychography in the Fresnel Diffraction Regime" +type: "article" +author: "A. Maiden, P. Lu, S. You, F. Allars" +year: "2025" +publication: "Microscopy and Microanalysis 31" +preprint: "" +doi: "10.1093/mam/ozaf048.044" +materials: "" +code_url: "" +project_page_url: "" +toc: false +categories: + - ptychography + - physics + # --- begin keyword categories (auto-managed) --- + - "fresnel diffraction" + # --- end keyword categories --- +# --- citation metrics (auto-managed; do not edit) --- +cited_by_count: 0 +fwci: 0.00 +citation_percentile: 20.3 +oa_status: closed +keywords: + - "Ptychography" + - "Fresnel diffraction" +metrics_updated: "2026-09-21T09:58:18Z" +# --- end citation metrics --- +--- +## Citation (APA 7) + +> Electron Ptychography in the Fresnel Diffraction Regime +A. Maiden, P. Lu, S. You, F. Allars +Microscopy and Microanalysis 31 + + +## Abstract + +[Abstract will be added manually] + + diff --git a/publications/articles/49_identification_of_polytypism_and_their_dislocation.qmd b/publications/articles/53_identification_of_polytypism_and_their_dislocation.qmd similarity index 97% rename from publications/articles/49_identification_of_polytypism_and_their_dislocation.qmd rename to publications/articles/53_identification_of_polytypism_and_their_dislocation.qmd index 416f9b6..67cdc0a 100644 --- a/publications/articles/49_identification_of_polytypism_and_their_dislocation.qmd +++ b/publications/articles/53_identification_of_polytypism_and_their_dislocation.qmd @@ -21,8 +21,8 @@ categories: # --- end keyword categories --- # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 2 -fwci: 0.50 -citation_percentile: 57.0 +fwci: 0.44 +citation_percentile: 52.1 is_oa: true oa_status: gold counts_by_year: @@ -39,7 +39,7 @@ keywords: - "Correlative" - "Transmission electron microscopy" - "Bilayer" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/50_kinetically_controlled_seed_mediated_synthesis_of_.qmd b/publications/articles/54_kinetically_controlled_seed_mediated_synthesis_of_.qmd similarity index 97% rename from publications/articles/50_kinetically_controlled_seed_mediated_synthesis_of_.qmd rename to publications/articles/54_kinetically_controlled_seed_mediated_synthesis_of_.qmd index 15227d1..6215b78 100644 --- a/publications/articles/50_kinetically_controlled_seed_mediated_synthesis_of_.qmd +++ b/publications/articles/54_kinetically_controlled_seed_mediated_synthesis_of_.qmd @@ -22,8 +22,8 @@ categories: # --- end keyword categories --- # --- citation metrics (auto-managed; do not edit) --- cited_by_count: 6 -fwci: 1.26 -citation_percentile: 78.7 +fwci: 1.08 +citation_percentile: 75.0 oa_status: closed counts_by_year: - [2019, 0] @@ -41,7 +41,7 @@ keywords: - "Copper" - "Surface plasmon resonance" - "Monomer" -metrics_updated: "2026-09-05T17:16:21Z" +metrics_updated: "2026-09-21T09:58:18Z" # --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/51_gap_free_information_transfer_in_4d_stem_via_fusio.qmd b/publications/articles/55_gap_free_information_transfer_in_4d_stem_via_fusio.qmd similarity index 83% rename from publications/articles/51_gap_free_information_transfer_in_4d_stem_via_fusio.qmd rename to publications/articles/55_gap_free_information_transfer_in_4d_stem_via_fusio.qmd index 2795df7..242c3c4 100644 --- a/publications/articles/51_gap_free_information_transfer_in_4d_stem_via_fusio.qmd +++ b/publications/articles/55_gap_free_information_transfer_in_4d_stem_via_fusio.qmd @@ -14,6 +14,25 @@ categories: - electron microscopy - physics - journal article + # --- begin keyword categories (auto-managed) --- + - "scattering" + - "phase-contrast imaging" + - "contrast transfer function" + - "upsampling" + # --- end keyword categories --- +# --- citation metrics (auto-managed; do not edit) --- +cited_by_count: 0 +fwci: 0.00 +citation_percentile: 67.1 +is_oa: true +oa_status: gold +keywords: + - "Scattering" + - "Phase-contrast imaging" + - "Contrast transfer function" + - "Upsampling" +metrics_updated: "2026-09-21T09:58:18Z" +# --- end citation metrics --- --- ## Citation (APA 7) diff --git a/publications/articles/56_transverse_quantum_state_characterization_of_progr.qmd b/publications/articles/56_transverse_quantum_state_characterization_of_progr.qmd new file mode 100644 index 0000000..fb4fa2d --- /dev/null +++ b/publications/articles/56_transverse_quantum_state_characterization_of_progr.qmd @@ -0,0 +1,27 @@ +--- +title: "Transverse quantum-state characterization of programmable electron optics" +type: "article" +author: "S. You, P. Rosi, E. Rotunno, A. Roncaglia, L. Belsito, A. H. Tavabi, R. E. Dunin-Borkowski, V. Grillo, P. M. Pelz" +year: "2026" +publication: "arXiv (Cornell University)" +preprint: "" +doi: "10.48550/arxiv.2608.05749" +materials: "" +code_url: "" +project_page_url: "" +toc: false +categories: + - research +--- +## Citation (APA 7) + +> Transverse quantum-state characterization of programmable electron optics +S. You, P. Rosi, E. Rotunno, A. Roncaglia, L. Belsito, A. H. Tavabi, R. E. Dunin-Borkowski, V. Grillo, P. M. Pelz +arXiv (Cornell University) + + +## Abstract + +[Abstract will be added manually] + + diff --git a/tests/__pycache__/test_generate_publications.cpython-311-pytest-9.1.1.pyc b/tests/__pycache__/test_generate_publications.cpython-311-pytest-9.1.1.pyc index d3b2bf1539af4eaa33be82e80dab9d882d07b6a8..018449e49a215f56ceaa7702917f3ee21ce56a1c 100644 GIT binary patch delta 22 ccmeC&#Mrrsk$X8WFBbz4l>gtbk^5f+08f4ghX4Qo delta 22 ccmeC&#Mrrsk$X8WFBbz4==#ms$o($@07&izcmMzZ