{"id":3754,"date":"2021-12-28T18:50:53","date_gmt":"2021-12-28T17:50:53","guid":{"rendered":"https:\/\/equipes.lps.u-psud.fr\/stem\/?page_id=3754"},"modified":"2026-01-12T16:46:48","modified_gmt":"2026-01-12T15:46:48","slug":"research-highlights","status":"publish","type":"page","link":"https:\/\/equipes.lps.u-psud.fr\/stem\/research-highlights\/","title":{"rendered":"RESEARCH"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">We are composed of about <a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/people\/\">twenty permanent and non-permanent staff<\/a>. Our expertise is based on the constant development of innovative instrumentation and data analysis tools, and on the establishment or use of new theories and simulation tools. Our fields of application cover a variety of domains in materials science, nanooptics and biophysics, ranging from plasmonics to correlated oxides, through 2D materials physics, metallurgy or biomineralization.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Research highlights<\/h2>\n\n\n\n<div class=\"wp-block-query is-layout-flow wp-block-query-is-layout-flow\"><ul class=\"wp-block-post-template is-layout-flow wp-block-post-template-is-layout-flow\"><li class=\"wp-block-post post-4439 post type-post status-publish format-standard has-post-thumbnail hentry category-research-highlights tag-cathodoluminescence tag-chromatem tag-coincidence tag-eegs tag-eels tag-nano-optics tag-nanothermometry\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><figure class=\"wp-block-post-featured-image\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/cathodoluminescence-light-injection-and-eels-in-stem-from-comparative-to-coincidence-experiments\/\" target=\"_self\" ><img loading=\"lazy\" decoding=\"async\" width=\"1498\" height=\"1162\" src=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2026\/09\/Nanothermo.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"Cathodoluminescence, light injection and EELS in STEM: from comparative to coincidence experiments\" style=\"object-fit:cover;\" srcset=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2026\/09\/Nanothermo.jpg 1498w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2026\/09\/Nanothermo-300x233.jpg 300w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2026\/09\/Nanothermo-1024x794.jpg 1024w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2026\/09\/Nanothermo-768x596.jpg 768w\" sizes=\"auto, (max-width: 1498px) 100vw, 1498px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\"><div class=\"wp-block-post-date\"><time datetime=\"2026-09-06T17:46:46+02:00\">6 septembre 2026<\/time><\/div>\n\n<h2 class=\"wp-block-post-title\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/cathodoluminescence-light-injection-and-eels-in-stem-from-comparative-to-coincidence-experiments\/\" target=\"_self\" >Cathodoluminescence, light injection and EELS in STEM: from comparative to coincidence experiments<\/a><\/h2>\n\n<div class=\"taxonomy-post_tag wp-block-post-terms\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/cathodoluminescence\/\" rel=\"tag\">cathodoluminescence<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/chromatem\/\" rel=\"tag\">Chromatem<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/coincidence\/\" rel=\"tag\">coincidence<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/eegs\/\" rel=\"tag\">EEGS<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/eels\/\" rel=\"tag\">EELS<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/nano-optics\/\" rel=\"tag\">nano-optics<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/nanothermometry\/\" rel=\"tag\">nanothermometry<\/a><\/div>\n\n<div class=\"wp-block-post-excerpt\"><p class=\"wp-block-post-excerpt__excerpt\">Electron spectroscopy implemented in electron microscopes provides high spatial resolution, down to the atomic scale, of the chemical, electronic, vibrational and optical properties of materials. In this review, we will describe how temporal coincidence experiments in the nanosecond to femtosecond range between different electron spectroscopies involving photons, inelastic electrons and secondary electrons can provide information\u2026<\/p><p class=\"wp-block-post-excerpt__more-text\"><a class=\"wp-block-post-excerpt__more-link\" href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/cathodoluminescence-light-injection-and-eels-in-stem-from-comparative-to-coincidence-experiments\/\">Read more&#8230;<\/a><\/p><\/div><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-wide\" \/>\n\n<\/li><li class=\"wp-block-post post-4398 post type-post status-publish format-standard has-post-thumbnail hentry category-research-highlights\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><figure class=\"wp-block-post-featured-image\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/strong-and-weak-coupling-nanophysics-with-free-electron-beams\/\" target=\"_self\" ><img loading=\"lazy\" decoding=\"async\" width=\"402\" height=\"392\" src=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2025\/09\/TOC.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"Strong and Weak Coupling Nanophysics with Free Electron Beams\" style=\"object-fit:cover;\" srcset=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2025\/09\/TOC.jpg 402w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2025\/09\/TOC-300x293.jpg 300w\" sizes=\"auto, (max-width: 402px) 100vw, 402px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\"><div class=\"wp-block-post-date\"><time datetime=\"2025-09-29T16:27:26+02:00\">29 septembre 2025<\/time><\/div>\n\n<h2 class=\"wp-block-post-title\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/strong-and-weak-coupling-nanophysics-with-free-electron-beams\/\" target=\"_self\" >Strong and Weak Coupling Nanophysics with Free Electron Beams<\/a><\/h2>\n\n\n\n<div class=\"wp-block-post-excerpt\"><p class=\"wp-block-post-excerpt__excerpt\">We have recently wrote a short review in Advanced Optical Materials, which just got published open acces. This short review paper focuses on the study of the coupling between optical excitations at the nanometer scale, made possible by recent advances in electron spectroscopies. In particular, plasmon\u2013plasmon, plasmon\u2013exciton, and plasmon\u2013phonon couplings are reviewed.It is worth mentioning\u2026<\/p><p class=\"wp-block-post-excerpt__more-text\"><a class=\"wp-block-post-excerpt__more-link\" href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/strong-and-weak-coupling-nanophysics-with-free-electron-beams\/\">Read more&#8230;<\/a><\/p><\/div><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-wide\" \/>\n\n<\/li><li class=\"wp-block-post post-4373 post type-post status-publish format-standard has-post-thumbnail hentry category-research-highlights tag-2d-materials tag-cathodoluminescence tag-chromatem tag-eels tag-nano-optics tag-van-der-waals-heterostructures\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><figure class=\"wp-block-post-featured-image\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/roadmap-for-with-2d-materials\/\" target=\"_self\" ><img loading=\"lazy\" decoding=\"async\" width=\"487\" height=\"279\" src=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2025\/09\/images_large_ph5c00353_0043.jpeg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"Roadmap for  with 2D Materials\" style=\"object-fit:cover;\" srcset=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2025\/09\/images_large_ph5c00353_0043.jpeg 487w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2025\/09\/images_large_ph5c00353_0043-300x172.jpeg 300w\" sizes=\"auto, (max-width: 487px) 100vw, 487px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\"><div class=\"wp-block-post-date\"><time datetime=\"2025-09-24T17:20:24+02:00\">24 septembre 2025<\/time><\/div>\n\n<h2 class=\"wp-block-post-title\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/roadmap-for-with-2d-materials\/\" target=\"_self\" >Roadmap for  with 2D Materials<\/a><\/h2>\n\n<div class=\"taxonomy-post_tag wp-block-post-terms\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/2d-materials\/\" rel=\"tag\">2D materials<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/cathodoluminescence\/\" rel=\"tag\">cathodoluminescence<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/chromatem\/\" rel=\"tag\">Chromatem<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/eels\/\" rel=\"tag\">EELS<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/nano-optics\/\" rel=\"tag\">nano-optics<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/van-der-waals-heterostructures\/\" rel=\"tag\">van der Waals heterostructures<\/a><\/div>\n\n<div class=\"wp-block-post-excerpt\"><p class=\"wp-block-post-excerpt__excerpt\">Triggered by advances in atomic-layer exfoliation and growth techniques, along with the identification of a wide range of extraordinary physical properties in self-standing films consisting of one or a few atomic layers, two-dimensional (2D) materials such as graphene, transition metal dichalcogenides (TMDs), and other van der Waals (vdW) crystals now constitute a broad research field\u2026<\/p><p class=\"wp-block-post-excerpt__more-text\"><a class=\"wp-block-post-excerpt__more-link\" href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/roadmap-for-with-2d-materials\/\">Read more&#8230;<\/a><\/p><\/div><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-wide\" \/>\n\n<\/li><li class=\"wp-block-post post-4345 post type-post status-publish format-standard has-post-thumbnail hentry category-research-highlights tag-cathodoluminescence tag-eegs tag-eels tag-nano-optics tag-quantum-optics\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><figure class=\"wp-block-post-featured-image\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/roadmap-for-quantum-nanophotonics-with-free-electrons\/\" target=\"_self\" ><img loading=\"lazy\" decoding=\"async\" width=\"1237\" height=\"761\" src=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2025\/09\/roadmap.png\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"Roadmap for Quantum Nanophotonics with Free Electrons\" style=\"object-fit:cover;\" srcset=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2025\/09\/roadmap.png 1237w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2025\/09\/roadmap-300x185.png 300w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2025\/09\/roadmap-1024x630.png 1024w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2025\/09\/roadmap-768x472.png 768w\" sizes=\"auto, (max-width: 1237px) 100vw, 1237px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\"><div class=\"wp-block-post-date\"><time datetime=\"2025-09-12T12:04:29+02:00\">12 septembre 2025<\/time><\/div>\n\n<h2 class=\"wp-block-post-title\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/roadmap-for-quantum-nanophotonics-with-free-electrons\/\" target=\"_self\" >Roadmap for Quantum Nanophotonics with Free Electrons<\/a><\/h2>\n\n<div class=\"taxonomy-post_tag wp-block-post-terms\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/cathodoluminescence\/\" rel=\"tag\">cathodoluminescence<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/eegs\/\" rel=\"tag\">EEGS<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/eels\/\" rel=\"tag\">EELS<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/nano-optics\/\" rel=\"tag\">nano-optics<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/quantum-optics\/\" rel=\"tag\">quantum optics<\/a><\/div>\n\n<div class=\"wp-block-post-excerpt\"><p class=\"wp-block-post-excerpt__excerpt\">We have been part of a large effort of the community led by Pr Javier Garcia de Abajo to write a roadmap for quantum nanophotonics with free electrons. Check it out! It is open access.<\/p><p class=\"wp-block-post-excerpt__more-text\"><a class=\"wp-block-post-excerpt__more-link\" href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/roadmap-for-quantum-nanophotonics-with-free-electrons\/\">Read more&#8230;<\/a><\/p><\/div><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-wide\" \/>\n\n<\/li><li class=\"wp-block-post post-4340 post type-post status-publish format-standard has-post-thumbnail hentry category-research-highlights tag-chromatem tag-eels tag-nano-optics\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><figure class=\"wp-block-post-featured-image\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/plasmon-interband-hybridization-and-anomalous-production-of-hot-electrons-in-aluminum-nanoantennas\/\" target=\"_self\" ><img loading=\"lazy\" decoding=\"async\" width=\"1812\" height=\"830\" src=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2025\/09\/AlAntennas.png\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"Plasmon-Interband Hybridization and Anomalous Production of Hot Electrons in Aluminum Nanoantennas\" style=\"object-fit:cover;\" srcset=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2025\/09\/AlAntennas.png 1812w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2025\/09\/AlAntennas-300x137.png 300w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2025\/09\/AlAntennas-1024x469.png 1024w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2025\/09\/AlAntennas-768x352.png 768w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2025\/09\/AlAntennas-1536x704.png 1536w\" sizes=\"auto, (max-width: 1812px) 100vw, 1812px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\"><div class=\"wp-block-post-date\"><time datetime=\"2025-09-12T11:51:44+02:00\">12 septembre 2025<\/time><\/div>\n\n<h2 class=\"wp-block-post-title\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/plasmon-interband-hybridization-and-anomalous-production-of-hot-electrons-in-aluminum-nanoantennas\/\" target=\"_self\" >Plasmon-Interband Hybridization and Anomalous Production of Hot Electrons in Aluminum Nanoantennas<\/a><\/h2>\n\n<div class=\"taxonomy-post_tag wp-block-post-terms\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/chromatem\/\" rel=\"tag\">Chromatem<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/eels\/\" rel=\"tag\">EELS<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/nano-optics\/\" rel=\"tag\">nano-optics<\/a><\/div>\n\n<div class=\"wp-block-post-excerpt\"><p class=\"wp-block-post-excerpt__excerpt\">Strong coupling typically occurs between two separate objects or between an object and its environment (such as an atom and a cavity). However, it can also occur between two different excitations within the same object, a situation that has been much less studied. In this study, we observe strong coupling between localized surface plasmon resonances\u2026<\/p><p class=\"wp-block-post-excerpt__more-text\"><a class=\"wp-block-post-excerpt__more-link\" href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/plasmon-interband-hybridization-and-anomalous-production-of-hot-electrons-in-aluminum-nanoantennas\/\">Read more&#8230;<\/a><\/p><\/div><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-wide\" \/>\n\n<\/li><li class=\"wp-block-post post-4277 post type-post status-publish format-standard has-post-thumbnail hentry category-research-highlights tag-2d-materials tag-anr tag-chromatem tag-eels tag-nano-optics tag-van-der-waals-heterostructures\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><figure class=\"wp-block-post-featured-image\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/nanosecond-nanothermometry-in-an-electron-microscope\/\" target=\"_self\" ><img loading=\"lazy\" decoding=\"async\" width=\"941\" height=\"537\" src=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2025\/01\/TOC_final2.png\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"Nanosecond Nanothermometry in an Electron Microscope\" style=\"object-fit:cover;\" srcset=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2025\/01\/TOC_final2.png 941w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2025\/01\/TOC_final2-300x171.png 300w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2025\/01\/TOC_final2-768x438.png 768w\" sizes=\"auto, (max-width: 941px) 100vw, 941px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\"><div class=\"wp-block-post-date\"><time datetime=\"2025-01-16T15:23:15+01:00\">16 janvier 2025<\/time><\/div>\n\n<h2 class=\"wp-block-post-title\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/nanosecond-nanothermometry-in-an-electron-microscope\/\" target=\"_self\" >Nanosecond Nanothermometry in an Electron Microscope<\/a><\/h2>\n\n<div class=\"taxonomy-post_tag wp-block-post-terms\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/2d-materials\/\" rel=\"tag\">2D materials<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/anr\/\" rel=\"tag\">ANR<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/chromatem\/\" rel=\"tag\">Chromatem<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/eels\/\" rel=\"tag\">EELS<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/nano-optics\/\" rel=\"tag\">nano-optics<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/van-der-waals-heterostructures\/\" rel=\"tag\">van der Waals heterostructures<\/a><\/div>\n\n<div class=\"wp-block-post-excerpt\"><p class=\"wp-block-post-excerpt__excerpt\">Thermal transport in nanostructures plays a critical role in modern technologies. As devices shrink, techniques that can measure thermal properties at nanometer and nanosecond scales are increasingly needed to capture transient, out-of-equilibrium phenomena. We present a novel pump\u2013probe photon\u2013electron method within a scanning transmission electron microscope (STEM) to map temperature dynamics with unprecedented spatial and\u2026<\/p><p class=\"wp-block-post-excerpt__more-text\"><a class=\"wp-block-post-excerpt__more-link\" href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/nanosecond-nanothermometry-in-an-electron-microscope\/\">Read more&#8230;<\/a><\/p><\/div><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-wide\" \/>\n\n<\/li><li class=\"wp-block-post post-4271 post type-post status-publish format-standard has-post-thumbnail hentry category-research-highlights tag-2d-materials tag-anr tag-cathodoluminescence tag-chromatem tag-eels tag-nano-optics tag-van-der-waals-heterostructures\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><figure class=\"wp-block-post-featured-image\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/quantum-confined-luminescence-in-two-dimensions\/\" target=\"_self\" ><img loading=\"lazy\" decoding=\"async\" width=\"1280\" height=\"720\" src=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2025\/01\/2DDots_TOC.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"Quantum Confined Luminescence in Two Dimensions\" style=\"object-fit:cover;\" srcset=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2025\/01\/2DDots_TOC.jpg 1280w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2025\/01\/2DDots_TOC-300x169.jpg 300w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2025\/01\/2DDots_TOC-1024x576.jpg 1024w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2025\/01\/2DDots_TOC-768x432.jpg 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\"><div class=\"wp-block-post-date\"><time datetime=\"2025-01-06T17:40:18+01:00\">6 janvier 2025<\/time><\/div>\n\n<h2 class=\"wp-block-post-title\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/quantum-confined-luminescence-in-two-dimensions\/\" target=\"_self\" >Quantum Confined Luminescence in Two Dimensions<\/a><\/h2>\n\n<div class=\"taxonomy-post_tag wp-block-post-terms\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/2d-materials\/\" rel=\"tag\">2D materials<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/anr\/\" rel=\"tag\">ANR<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/cathodoluminescence\/\" rel=\"tag\">cathodoluminescence<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/chromatem\/\" rel=\"tag\">Chromatem<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/eels\/\" rel=\"tag\">EELS<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/nano-optics\/\" rel=\"tag\">nano-optics<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/van-der-waals-heterostructures\/\" rel=\"tag\">van der Waals heterostructures<\/a><\/div>\n\n<div class=\"wp-block-post-excerpt\"><p class=\"wp-block-post-excerpt__excerpt\">The field of nanophotonics has witnessed a surge of interest in localized light emitters, driven by their potential to revolutionize optoelectronic devices. These emitters, including nanoparticles, nanowires, and quantum wells, confine electrons, holes or excitons to nanoscale dimensions, leading to unique emission characteristics and potential applications in quantum technologies. This study explores a new type\u2026<\/p><p class=\"wp-block-post-excerpt__more-text\"><a class=\"wp-block-post-excerpt__more-link\" href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/quantum-confined-luminescence-in-two-dimensions\/\">Read more&#8230;<\/a><\/p><\/div><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-wide\" \/>\n\n<\/li><li class=\"wp-block-post post-4223 post type-post status-publish format-standard has-post-thumbnail hentry category-research-highlights tag-chromatem tag-eels tag-nano-optics\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><figure class=\"wp-block-post-featured-image\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/high-efficiency-coupling-of-free-electrons-to-sub%e2%80%90%ce%bb-cube-modal-volume-high%e2%80%90q-photonic-cavities\/\" target=\"_self\" ><img loading=\"lazy\" decoding=\"async\" width=\"1003\" height=\"537\" src=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2024\/04\/tocMalo.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"High-Efficiency Coupling of Free Electrons to Sub-wavelength cube Modal Volume, High\u2010Q Photonic Cavities\" style=\"object-fit:cover;\" srcset=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2024\/04\/tocMalo.jpg 1003w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2024\/04\/tocMalo-300x161.jpg 300w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2024\/04\/tocMalo-768x411.jpg 768w\" sizes=\"auto, (max-width: 1003px) 100vw, 1003px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\"><div class=\"wp-block-post-date\"><time datetime=\"2024-04-19T14:34:40+02:00\">19 avril 2024<\/time><\/div>\n\n<h2 class=\"wp-block-post-title\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/high-efficiency-coupling-of-free-electrons-to-sub%e2%80%90%ce%bb-cube-modal-volume-high%e2%80%90q-photonic-cavities\/\" target=\"_self\" >High-Efficiency Coupling of Free Electrons to Sub-wavelength cube Modal Volume, High\u2010Q Photonic Cavities<\/a><\/h2>\n\n<div class=\"taxonomy-post_tag wp-block-post-terms\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/chromatem\/\" rel=\"tag\">Chromatem<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/eels\/\" rel=\"tag\">EELS<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/nano-optics\/\" rel=\"tag\">nano-optics<\/a><\/div>\n\n<div class=\"wp-block-post-excerpt\"><p class=\"wp-block-post-excerpt__excerpt\">We report on the design, realization, and experimental investigation by spatially resolved monochro- mated electron energy loss spectroscopy (EELS) of high- quality-factor cavities with modal volumes smaller than \u03bb3, with \u03bb being the free-space wavelength of light. The cavities are based on a slot defect in a 2D photonic crystal slab made up of silicon.\u2026<\/p><p class=\"wp-block-post-excerpt__more-text\"><a class=\"wp-block-post-excerpt__more-link\" href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/high-efficiency-coupling-of-free-electrons-to-sub%e2%80%90%ce%bb-cube-modal-volume-high%e2%80%90q-photonic-cavities\/\">Read more&#8230;<\/a><\/p><\/div><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-wide\" \/>\n\n<\/li><li class=\"wp-block-post post-4216 post type-post status-publish format-standard has-post-thumbnail hentry category-research-highlights tag-4d-stem tag-dft tag-haxpes tag-nickelate tag-rixs\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><figure class=\"wp-block-post-featured-image\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/valence-ordered-thin-film-nickelate-with-tri-component-nickel-coordination-prepared-by-topochemical-reduction\/\" target=\"_self\" ><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"431\" src=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2024\/03\/images_large_nn3c07614_0006.jpeg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"Valence-Ordered Thin-Film Nickelate with Tri-component Nickel Coordination Prepared by Topochemical Reduction\" style=\"object-fit:cover;\" srcset=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2024\/03\/images_large_nn3c07614_0006.jpeg 1000w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2024\/03\/images_large_nn3c07614_0006-300x129.jpeg 300w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2024\/03\/images_large_nn3c07614_0006-768x331.jpeg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\"><div class=\"wp-block-post-date\"><time datetime=\"2024-03-15T12:08:38+01:00\">15 mars 2024<\/time><\/div>\n\n<h2 class=\"wp-block-post-title\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/valence-ordered-thin-film-nickelate-with-tri-component-nickel-coordination-prepared-by-topochemical-reduction\/\" target=\"_self\" >Valence-Ordered Thin-Film Nickelate with Tri-component Nickel Coordination Prepared by Topochemical Reduction<\/a><\/h2>\n\n<div class=\"taxonomy-post_tag wp-block-post-terms\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/4d-stem\/\" rel=\"tag\">4D-STEM<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/dft\/\" rel=\"tag\">DFT<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/haxpes\/\" rel=\"tag\">HAXPES<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/nickelate\/\" rel=\"tag\">Nickelate<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/rixs\/\" rel=\"tag\">RIXS<\/a><\/div>\n\n<div class=\"wp-block-post-excerpt\"><p class=\"wp-block-post-excerpt__excerpt\">In a groundbreaking study, researchers have synthesized Sm9Ni9O22 using the metal-hydride-based &#8220;topochemical reduction&#8221; process. This compound exhibits ordered nickel valences associated with tri-component coordination configurations, resulting in a unique crystal structure revealed through advanced microscopy techniques. Through 4D-STEM, X-ray spectroscopy and theoretical calculations, the coexistence of square planar, pyramidal, and octahedral nickel sites with mono-,\u2026<\/p><p class=\"wp-block-post-excerpt__more-text\"><a class=\"wp-block-post-excerpt__more-link\" href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/valence-ordered-thin-film-nickelate-with-tri-component-nickel-coordination-prepared-by-topochemical-reduction\/\">Read more&#8230;<\/a><\/p><\/div><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-wide\" \/>\n\n<\/li><li class=\"wp-block-post post-4181 post type-post status-publish format-standard has-post-thumbnail hentry category-research-highlights tag-chromatem tag-eegs tag-eels tag-nano-optics\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><figure class=\"wp-block-post-featured-image\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/%ce%bcev-electron-spectromicroscopy-using-free-space-light\/\" target=\"_self\" ><img loading=\"lazy\" decoding=\"async\" width=\"1649\" height=\"1015\" src=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2023\/07\/HREEGS.png\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"\u03bceV electron spectromicroscopy using free-space light\" style=\"object-fit:cover;\" srcset=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2023\/07\/HREEGS.png 1649w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2023\/07\/HREEGS-300x185.png 300w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2023\/07\/HREEGS-1024x630.png 1024w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2023\/07\/HREEGS-768x473.png 768w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2023\/07\/HREEGS-1536x945.png 1536w\" sizes=\"auto, (max-width: 1649px) 100vw, 1649px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\"><div class=\"wp-block-post-date\"><time datetime=\"2023-07-25T10:26:13+02:00\">25 juillet 2023<\/time><\/div>\n\n<h2 class=\"wp-block-post-title\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/%ce%bcev-electron-spectromicroscopy-using-free-space-light\/\" target=\"_self\" >\u03bceV electron spectromicroscopy using free-space light<\/a><\/h2>\n\n<div class=\"taxonomy-post_tag wp-block-post-terms\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/chromatem\/\" rel=\"tag\">Chromatem<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/eegs\/\" rel=\"tag\">EEGS<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/eels\/\" rel=\"tag\">EELS<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/nano-optics\/\" rel=\"tag\">nano-optics<\/a><\/div>\n\n<div class=\"wp-block-post-excerpt\"><p class=\"wp-block-post-excerpt__excerpt\">The synergy between free electrons and light has recently been leveraged to reach an impressive degree of simultaneous spatial and spectral resolution, enabling applications in microscopy and quantum optics. However, the required combination of electron optics and light injection into the spectrally narrow modes of arbitrary specimens remains a challenge. In our recently published paper\u2026<\/p><p class=\"wp-block-post-excerpt__more-text\"><a class=\"wp-block-post-excerpt__more-link\" href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/%ce%bcev-electron-spectromicroscopy-using-free-space-light\/\">Read more&#8230;<\/a><\/p><\/div><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-wide\" \/>\n\n<\/li><li class=\"wp-block-post post-4133 post type-post status-publish format-standard has-post-thumbnail hentry category-news category-research-highlights tag-2d-materials tag-anr tag-chromatem tag-eels tag-nano-optics tag-van-der-waals-heterostructures\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><figure class=\"wp-block-post-featured-image\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/excitonic-absorption-signatures-of-twisted-bilayer-wse2-by-electron-energy-loss-spectroscopy\/\" target=\"_self\" ><img loading=\"lazy\" decoding=\"async\" width=\"336\" height=\"618\" src=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2023\/04\/WSe2-moire_teaser.png\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"Excitonic absorption signatures of twisted bilayer WSe2 by electron energy-loss spectroscopy\" style=\"object-fit:cover;\" srcset=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2023\/04\/WSe2-moire_teaser.png 336w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2023\/04\/WSe2-moire_teaser-163x300.png 163w\" sizes=\"auto, (max-width: 336px) 100vw, 336px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\"><div class=\"wp-block-post-date\"><time datetime=\"2023-04-28T11:19:32+02:00\">28 avril 2023<\/time><\/div>\n\n<h2 class=\"wp-block-post-title\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/excitonic-absorption-signatures-of-twisted-bilayer-wse2-by-electron-energy-loss-spectroscopy\/\" target=\"_self\" >Excitonic absorption signatures of twisted bilayer WSe2 by electron energy-loss spectroscopy<\/a><\/h2>\n\n<div class=\"taxonomy-post_tag wp-block-post-terms\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/2d-materials\/\" rel=\"tag\">2D materials<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/anr\/\" rel=\"tag\">ANR<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/chromatem\/\" rel=\"tag\">Chromatem<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/eels\/\" rel=\"tag\">EELS<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/nano-optics\/\" rel=\"tag\">nano-optics<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/van-der-waals-heterostructures\/\" rel=\"tag\">van der Waals heterostructures<\/a><\/div>\n\n<div class=\"wp-block-post-excerpt\"><p class=\"wp-block-post-excerpt__excerpt\">Moir\u00e9 twist angle underpins the interlayer interaction of excitons in twisted van der Waals hetero- and homostructures. The influence of twist angle on the excitonic absorption of twisted bilayer tungsten diselenide (WSe2) has been investigated using electron energy-loss spectroscopy. Atomic-resolution imaging by scanning transmission electron microscopy was used to determine key structural parameters, including the\u2026<\/p><p class=\"wp-block-post-excerpt__more-text\"><a class=\"wp-block-post-excerpt__more-link\" href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/excitonic-absorption-signatures-of-twisted-bilayer-wse2-by-electron-energy-loss-spectroscopy\/\">Read more&#8230;<\/a><\/p><\/div><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-wide\" \/>\n\n<\/li><li class=\"wp-block-post post-4057 post type-post status-publish format-standard has-post-thumbnail hentry category-research-highlights tag-cathodoluminescence tag-chromatem tag-eels tag-nano-optics tag-vg\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><figure class=\"wp-block-post-featured-image\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/cathodoluminescence-excitation-spectroscopy-nanoscale-imaging-of-excitation-pathways\/\" target=\"_self\" ><img loading=\"lazy\" decoding=\"async\" width=\"2090\" height=\"1010\" src=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/10\/TOC.png\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"Cathodoluminescence excitation spectroscopy: Nanoscale imaging of excitation pathways\" style=\"object-fit:cover;\" srcset=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/10\/TOC.png 2090w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/10\/TOC-300x145.png 300w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/10\/TOC-1024x495.png 1024w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/10\/TOC-768x371.png 768w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/10\/TOC-1536x742.png 1536w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/10\/TOC-2048x990.png 2048w\" sizes=\"auto, (max-width: 2090px) 100vw, 2090px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\"><div class=\"wp-block-post-date\"><time datetime=\"2022-10-08T09:06:37+02:00\">8 octobre 2022<\/time><\/div>\n\n<h2 class=\"wp-block-post-title\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/cathodoluminescence-excitation-spectroscopy-nanoscale-imaging-of-excitation-pathways\/\" target=\"_self\" >Cathodoluminescence excitation spectroscopy: Nanoscale imaging of excitation pathways<\/a><\/h2>\n\n<div class=\"taxonomy-post_tag wp-block-post-terms\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/cathodoluminescence\/\" rel=\"tag\">cathodoluminescence<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/chromatem\/\" rel=\"tag\">Chromatem<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/eels\/\" rel=\"tag\">EELS<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/nano-optics\/\" rel=\"tag\">nano-optics<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/vg\/\" rel=\"tag\">VG<\/a><\/div>\n\n<div class=\"wp-block-post-excerpt\"><p class=\"wp-block-post-excerpt__excerpt\">Following optical excitations\u2019 life span from creation to decay into photons is crucial in understanding materials photophysics. Macroscopically, this is studied using optical techniques, such as photoluminescence excitation spectroscopy. However, excitation and emission pathways can vary at nanometer scales, preventing direct access, as no characterization technique has the relevant spatial, spectral, and time resolution. Here,\u2026<\/p><p class=\"wp-block-post-excerpt__more-text\"><a class=\"wp-block-post-excerpt__more-link\" href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/cathodoluminescence-excitation-spectroscopy-nanoscale-imaging-of-excitation-pathways\/\">Read more&#8230;<\/a><\/p><\/div><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-wide\" \/>\n\n<\/li><li class=\"wp-block-post post-4033 post type-post status-publish format-standard has-post-thumbnail hentry category-research-highlights tag-2d-materials tag-anr tag-chromatem tag-eels tag-nano-optics tag-van-der-waals-heterostructures\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><figure class=\"wp-block-post-featured-image\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/substrate-influence-on-transition-metal-dichalcogenide-monolayer-exciton-absorption-linewidth-broadening\/\" target=\"_self\" ><img loading=\"lazy\" decoding=\"async\" width=\"2886\" height=\"1632\" src=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/07\/Fig1_EELS_Histogram-3.png\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"Substrate influence on transition metal dichalcogenide monolayer exciton absorption linewidth broadening\" style=\"object-fit:cover;\" srcset=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/07\/Fig1_EELS_Histogram-3.png 2886w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/07\/Fig1_EELS_Histogram-3-300x170.png 300w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/07\/Fig1_EELS_Histogram-3-1024x579.png 1024w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/07\/Fig1_EELS_Histogram-3-768x434.png 768w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/07\/Fig1_EELS_Histogram-3-1536x869.png 1536w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/07\/Fig1_EELS_Histogram-3-2048x1158.png 2048w\" sizes=\"auto, (max-width: 2886px) 100vw, 2886px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\"><div class=\"wp-block-post-date\"><time datetime=\"2022-07-25T13:01:18+02:00\">25 juillet 2022<\/time><\/div>\n\n<h2 class=\"wp-block-post-title\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/substrate-influence-on-transition-metal-dichalcogenide-monolayer-exciton-absorption-linewidth-broadening\/\" target=\"_self\" >Substrate influence on transition metal dichalcogenide monolayer exciton absorption linewidth broadening<\/a><\/h2>\n\n<div class=\"taxonomy-post_tag wp-block-post-terms\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/2d-materials\/\" rel=\"tag\">2D materials<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/anr\/\" rel=\"tag\">ANR<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/chromatem\/\" rel=\"tag\">Chromatem<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/eels\/\" rel=\"tag\">EELS<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/nano-optics\/\" rel=\"tag\">nano-optics<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/van-der-waals-heterostructures\/\" rel=\"tag\">van der Waals heterostructures<\/a><\/div>\n\n<div class=\"wp-block-post-excerpt\"><p class=\"wp-block-post-excerpt__excerpt\">The excitonic states of transition metal dichalcogenide (TMD) monolayers are heavily influenced by their external dielectric environment and depend on the substrate used. In this work, various wide band gap dielectric materials, namely hexagonal boron nitride (h\u2212BN) and amorphous silicon nitride (Si3N4), under different configurations as support or encapsulation material for WS2 monolayers, are investigated\u2026<\/p><p class=\"wp-block-post-excerpt__more-text\"><a class=\"wp-block-post-excerpt__more-link\" href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/substrate-influence-on-transition-metal-dichalcogenide-monolayer-exciton-absorption-linewidth-broadening\/\">Read more&#8230;<\/a><\/p><\/div><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-wide\" \/>\n\n<\/li><li class=\"wp-block-post post-3968 post type-post status-publish format-standard has-post-thumbnail hentry category-research-highlights tag-biominerals tag-eels\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><figure class=\"wp-block-post-featured-image\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/the-abalone-reveals-its-secrets-about-the-origin-of-its-shell\/\" target=\"_self\" ><img loading=\"lazy\" decoding=\"async\" width=\"1237\" height=\"525\" src=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/04\/Untitled.png\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"The abalone reveals its secrets about the origin of its shell\" style=\"object-fit:cover;\" srcset=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/04\/Untitled.png 1237w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/04\/Untitled-300x127.png 300w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/04\/Untitled-1024x435.png 1024w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/04\/Untitled-768x326.png 768w\" sizes=\"auto, (max-width: 1237px) 100vw, 1237px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\"><div class=\"wp-block-post-date\"><time datetime=\"2022-04-21T16:06:53+02:00\">21 avril 2022<\/time><\/div>\n\n<h2 class=\"wp-block-post-title\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/the-abalone-reveals-its-secrets-about-the-origin-of-its-shell\/\" target=\"_self\" >The abalone reveals its secrets about the origin of its shell<\/a><\/h2>\n\n<div class=\"taxonomy-post_tag wp-block-post-terms\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/biominerals\/\" rel=\"tag\">biominerals<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/eels\/\" rel=\"tag\">EELS<\/a><\/div>\n\n<div class=\"wp-block-post-excerpt\"><p class=\"wp-block-post-excerpt__excerpt\">Many multicellular animals secrete a mineralized skeleton, a composite material in which the mineral phase, carbonated, phosphated or siliceous, is predominant. It is generally accepted that carbonates, which are abundant in protostomian invertebrates (shell of mollusks, shell of crustaceans) are rather associated with chitin, a saccharide polymer, while phosphates, which are mainly present in vertebrates,\u2026<\/p><p class=\"wp-block-post-excerpt__more-text\"><a class=\"wp-block-post-excerpt__more-link\" href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/the-abalone-reveals-its-secrets-about-the-origin-of-its-shell\/\">Read more&#8230;<\/a><\/p><\/div><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-wide\" \/>\n\n<\/li><li class=\"wp-block-post post-3887 post type-post status-publish format-standard has-post-thumbnail hentry category-research-highlights\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><figure class=\"wp-block-post-featured-image\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/liquid-phase-sintering-of-lead-halide-perovskites-and-metal-organic-framework-glasses\/\" target=\"_self\" ><img loading=\"lazy\" decoding=\"async\" width=\"1233\" height=\"1231\" src=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/01\/Figure.png\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"Liquid-phase sintering of lead halide perovskites and metal-organic framework glasses\" style=\"object-fit:cover;\" srcset=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/01\/Figure.png 1233w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/01\/Figure-300x300.png 300w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/01\/Figure-1024x1022.png 1024w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/01\/Figure-768x767.png 768w\" sizes=\"auto, (max-width: 1233px) 100vw, 1233px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\"><div class=\"wp-block-post-date\"><time datetime=\"2022-01-18T13:07:45+01:00\">18 janvier 2022<\/time><\/div>\n\n<h2 class=\"wp-block-post-title\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/liquid-phase-sintering-of-lead-halide-perovskites-and-metal-organic-framework-glasses\/\" target=\"_self\" >Liquid-phase sintering of lead halide perovskites and metal-organic framework glasses<\/a><\/h2>\n\n\n\n<div class=\"wp-block-post-excerpt\"><p class=\"wp-block-post-excerpt__excerpt\">Lead halide perovskite (LHP) semiconductors show exceptional optoelectronic properties. Barriers for their applications, however, lie in their polymorphism, instability to polar solvents, phase segregation, and susceptibility to the leaching of lead ions. We report a family of scalable composites fabricated through liquid-phase sintering of LHPs and metal-organic framework glasses. The glass acts as a matrix\u2026<\/p><p class=\"wp-block-post-excerpt__more-text\"><a class=\"wp-block-post-excerpt__more-link\" href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/liquid-phase-sintering-of-lead-halide-perovskites-and-metal-organic-framework-glasses\/\">Read more&#8230;<\/a><\/p><\/div><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-wide\" \/>\n\n<\/li><li class=\"wp-block-post post-3873 post type-post status-publish format-standard has-post-thumbnail hentry category-research-highlights tag-2d-materials tag-cathodoluminescence tag-chromatem tag-eels tag-nano-optics tag-van-der-waals-heterostructures\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><figure class=\"wp-block-post-featured-image\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/nanoscale-modification-of-ws2-trion-emission-by-its-local-electromagnetic-environment\/\" target=\"_self\" ><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"287\" src=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/01\/TOC_NL_Bonnet.gif\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"Nanoscale Modification of WS2 Trion Emission by Its Local Electromagnetic Environment\" style=\"object-fit:cover;\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\"><div class=\"wp-block-post-date\"><time datetime=\"2022-01-13T10:47:48+01:00\">13 janvier 2022<\/time><\/div>\n\n<h2 class=\"wp-block-post-title\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/nanoscale-modification-of-ws2-trion-emission-by-its-local-electromagnetic-environment\/\" target=\"_self\" >Nanoscale Modification of WS2 Trion Emission by Its Local Electromagnetic Environment<\/a><\/h2>\n\n<div class=\"taxonomy-post_tag wp-block-post-terms\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/2d-materials\/\" rel=\"tag\">2D materials<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/cathodoluminescence\/\" rel=\"tag\">cathodoluminescence<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/chromatem\/\" rel=\"tag\">Chromatem<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/eels\/\" rel=\"tag\">EELS<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/nano-optics\/\" rel=\"tag\">nano-optics<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/van-der-waals-heterostructures\/\" rel=\"tag\">van der Waals heterostructures<\/a><\/div>\n\n<div class=\"wp-block-post-excerpt\"><p class=\"wp-block-post-excerpt__excerpt\">Structural, electronic, and chemical nanoscale modifications of transition metal dichalcogenide monolayers alter their optical properties. A key missing element for complete control is a direct spatial correlation of optical response to nanoscale modifications due to the large gap in spatial resolution between optical spectroscopy and nanometer-resolved techniques. Here, we bridge this gap by obtaining nanometer-resolved\u2026<\/p><p class=\"wp-block-post-excerpt__more-text\"><a class=\"wp-block-post-excerpt__more-link\" href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/nanoscale-modification-of-ws2-trion-emission-by-its-local-electromagnetic-environment\/\">Read more&#8230;<\/a><\/p><\/div><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-wide\" \/>\n\n<\/li><li class=\"wp-block-post post-3834 post type-post status-publish format-standard has-post-thumbnail hentry category-research-highlights tag-cathodoluminescence tag-chromatem tag-eels tag-nano-optics\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><figure class=\"wp-block-post-featured-image\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/unveiling-the-coupling-of-single-metallic-nanoparticles-to-whispering-gallery-microcavities\/\" target=\"_self\" ><img loading=\"lazy\" decoding=\"async\" width=\"1008\" height=\"571\" src=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/01\/WGM-1.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"Unveiling the Coupling of Single Metallic Nanoparticles to Whispering-Gallery Microcavities\" style=\"object-fit:cover;\" srcset=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/01\/WGM-1.jpg 1008w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/01\/WGM-1-300x170.jpg 300w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2022\/01\/WGM-1-768x435.jpg 768w\" sizes=\"auto, (max-width: 1008px) 100vw, 1008px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\"><div class=\"wp-block-post-date\"><time datetime=\"2022-01-02T21:25:33+01:00\">2 janvier 2022<\/time><\/div>\n\n<h2 class=\"wp-block-post-title\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/unveiling-the-coupling-of-single-metallic-nanoparticles-to-whispering-gallery-microcavities\/\" target=\"_self\" >Unveiling the Coupling of Single Metallic Nanoparticles to Whispering-Gallery Microcavities<\/a><\/h2>\n\n<div class=\"taxonomy-post_tag wp-block-post-terms\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/cathodoluminescence\/\" rel=\"tag\">cathodoluminescence<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/chromatem\/\" rel=\"tag\">Chromatem<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/eels\/\" rel=\"tag\">EELS<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/nano-optics\/\" rel=\"tag\">nano-optics<\/a><\/div>\n\n<div class=\"wp-block-post-excerpt\"><p class=\"wp-block-post-excerpt__excerpt\">Whispering-gallery mode resonators host multiple trapped narrow-band circulating optical resonances that find applications in quantum electrodynamics, optomechanics, and sensing. However, the spherical symmetry and low field leakage of dielectric microspheres make it difficult to probe their high-quality optical modes using far-field radiation. Even so, local field enhancement from metallic nanoparticles (MNPs) coupled to the resonators\u2026<\/p><p class=\"wp-block-post-excerpt__more-text\"><a class=\"wp-block-post-excerpt__more-link\" href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/unveiling-the-coupling-of-single-metallic-nanoparticles-to-whispering-gallery-microcavities\/\">Read more&#8230;<\/a><\/p><\/div><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-wide\" \/>\n\n<\/li><li class=\"wp-block-post post-3295 post type-post status-publish format-standard has-post-thumbnail hentry category-research-highlights tag-eels tag-nano-optics tag-theory\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><figure class=\"wp-block-post-featured-image\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/optical-polarization-analogue-in-free-electron-beams\/\" target=\"_self\" ><img loading=\"lazy\" decoding=\"async\" width=\"1472\" height=\"574\" src=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2021\/10\/BlochPoincare.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"Optical polarization analogue in free electron beams\" style=\"object-fit:cover;\" srcset=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2021\/10\/BlochPoincare.jpg 1472w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2021\/10\/BlochPoincare-300x117.jpg 300w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2021\/10\/BlochPoincare-1024x399.jpg 1024w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2021\/10\/BlochPoincare-768x299.jpg 768w\" sizes=\"auto, (max-width: 1472px) 100vw, 1472px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\"><div class=\"wp-block-post-date\"><time datetime=\"2021-09-19T18:02:00+02:00\">19 septembre 2021<\/time><\/div>\n\n<h2 class=\"wp-block-post-title\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/optical-polarization-analogue-in-free-electron-beams\/\" target=\"_self\" >Optical polarization analogue in free electron beams<\/a><\/h2>\n\n<div class=\"taxonomy-post_tag wp-block-post-terms\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/eels\/\" rel=\"tag\">EELS<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/nano-optics\/\" rel=\"tag\">nano-optics<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/theory\/\" rel=\"tag\">theory<\/a><\/div>\n\n<div class=\"wp-block-post-excerpt\"><p class=\"wp-block-post-excerpt__excerpt\">Spectromicroscopy techniques with fast electrons can quantitatively measure the optical response of excitations with unrivalled spatial resolution. However, owing to their inherently scalar nature, electron waves cannot access the polarization-related quantities. Despite promising attempts based on the conversion of concepts originating from singular optics (such as vortex beams), the definition of an optical polarization analogue\u2026<\/p><p class=\"wp-block-post-excerpt__more-text\"><a class=\"wp-block-post-excerpt__more-link\" href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/optical-polarization-analogue-in-free-electron-beams\/\">Read more&#8230;<\/a><\/p><\/div><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-wide\" \/>\n\n<\/li><li class=\"wp-block-post post-3239 post type-post status-publish format-standard has-post-thumbnail hentry category-research-highlights tag-nano-optics\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><figure class=\"wp-block-post-featured-image\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/three-dimensional-vectorial-imaging-of-surface-phonon-polaritons\/\" target=\"_self\" ><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"444\" src=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2021\/09\/figure_1.preview.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"Three-dimensional vectorial imaging of surface phonon polaritons\" style=\"object-fit:cover;\" srcset=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2021\/09\/figure_1.preview.jpg 640w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2021\/09\/figure_1.preview-300x208.jpg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\"><div class=\"wp-block-post-date\"><time datetime=\"2021-09-12T12:24:28+02:00\">12 septembre 2021<\/time><\/div>\n\n<h2 class=\"wp-block-post-title\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/three-dimensional-vectorial-imaging-of-surface-phonon-polaritons\/\" target=\"_self\" >Three-dimensional vectorial imaging of surface phonon polaritons<\/a><\/h2>\n\n<div class=\"taxonomy-post_tag wp-block-post-terms\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/tag\/nano-optics\/\" rel=\"tag\">nano-optics<\/a><\/div>\n\n<div class=\"wp-block-post-excerpt\"><p class=\"wp-block-post-excerpt__excerpt\">Surface phonon polaritons (SPhPs) are coupled photon-phonon excitations that emerge at the surfaces of nanostructured materials. Although they strongly influence the optical and thermal behavior of nanomaterials, no technique has been able to reveal the complete three-dimensional (3D) vectorial picture of their electromagnetic density of states. Using our monochromated NION-HERMES CHROMATEM, we could visualize varying\u2026<\/p><p class=\"wp-block-post-excerpt__more-text\"><a class=\"wp-block-post-excerpt__more-link\" href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/three-dimensional-vectorial-imaging-of-surface-phonon-polaritons\/\">Read more&#8230;<\/a><\/p><\/div><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-wide\" \/>\n\n<\/li><li class=\"wp-block-post post-3306 post type-post status-publish format-standard has-post-thumbnail hentry category-research-highlights\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><figure class=\"wp-block-post-featured-image\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/extrinsic-doping-in-group-iv-hexagonal-diamond-type-crystals\/\" target=\"_self\" ><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"344\" src=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2021\/10\/ToC.preview.png\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"Extrinsic doping in group IV hexagonal-diamond-type crystals\" style=\"object-fit:cover;\" srcset=\"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2021\/10\/ToC.preview.png 640w, https:\/\/equipes.lps.u-psud.fr\/stem\/wp-content\/uploads\/sites\/11\/2021\/10\/ToC.preview-300x161.png 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\"><div class=\"wp-block-post-date\"><time datetime=\"2020-07-30T11:24:00+02:00\">30 juillet 2020<\/time><\/div>\n\n<h2 class=\"wp-block-post-title\"><a href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/extrinsic-doping-in-group-iv-hexagonal-diamond-type-crystals\/\" target=\"_self\" >Extrinsic doping in group IV hexagonal-diamond-type crystals<\/a><\/h2>\n\n\n\n<div class=\"wp-block-post-excerpt\"><p class=\"wp-block-post-excerpt__excerpt\">Over the past few years, group IV hexagonal-diamond-type crystals have acquired a lot of attention in semiconductor physics thanks to the appearance of novel and very effective growth methods. However, many questions remain unaddressed on their extrinsic doping capability and on how it compares to those of diamond-like structures. This point is here investigated through\u2026<\/p><p class=\"wp-block-post-excerpt__more-text\"><a class=\"wp-block-post-excerpt__more-link\" href=\"https:\/\/equipes.lps.u-psud.fr\/stem\/extrinsic-doping-in-group-iv-hexagonal-diamond-type-crystals\/\">Read more&#8230;<\/a><\/p><\/div><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-wide\" \/>\n\n<\/li><\/ul>\n\n<nav class=\"wp-block-query-pagination is-layout-flex wp-block-query-pagination-is-layout-flex\" aria-label=\"Pagination\">\n\n\n<div class=\"wp-block-query-pagination-numbers\"><span aria-current=\"page\" class=\"page-numbers current\">1<\/span>\n<a class=\"page-numbers\" href=\"?query-14-page=2\">2<\/a><\/div>\n\n<a href=\"\/stem\/wp-json\/wp\/v2\/pages\/3754?query-14-page=2\" class=\"wp-block-query-pagination-next\">Page suivante<\/a>\n<\/nav><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>We are composed of about twenty permanent and non-permanent staff. Our expertise is based on the constant development of innovative instrumentation and data analysis tools, and on the establishment or &#8230;<\/p>\n","protected":false},"author":23,"featured_media":3241,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-3754","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-json\/wp\/v2\/pages\/3754","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-json\/wp\/v2\/users\/23"}],"replies":[{"embeddable":true,"href":"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-json\/wp\/v2\/comments?post=3754"}],"version-history":[{"count":7,"href":"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-json\/wp\/v2\/pages\/3754\/revisions"}],"predecessor-version":[{"id":4428,"href":"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-json\/wp\/v2\/pages\/3754\/revisions\/4428"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-json\/wp\/v2\/media\/3241"}],"wp:attachment":[{"href":"https:\/\/equipes.lps.u-psud.fr\/stem\/wp-json\/wp\/v2\/media?parent=3754"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}