{"id":11346,"date":"2025-03-13T10:07:48","date_gmt":"2025-03-13T09:07:48","guid":{"rendered":"https:\/\/fermi.univ-tlse3.fr\/?post_type=tribe_events&#038;p=11346"},"modified":"2025-04-14T13:50:36","modified_gmt":"2025-04-14T11:50:36","slug":"combo-raman-et-optique-non-lineaire-larme-absolue-pour-sonder-la-symetrie-jeremie-teyssier-cemes-seminar-17-04-2025-11h","status":"publish","type":"tribe_events","link":"https:\/\/fermi.univ-tlse3.fr\/fr\/home\/event\/combo-raman-et-optique-non-lineaire-larme-absolue-pour-sonder-la-symetrie-jeremie-teyssier-cemes-seminar-17-04-2025-11h\/","title":{"rendered":"Combo Raman et Optique non lin\u00e9aire, l\u2019arme absolue pour sonder la sym\u00e9trie. &#8211; (J\u00e9r\u00e9mie Teyssier \/ CEMES \/ Seminar). &#8211; 17\/04\/2025, 11H"},"content":{"rendered":"<p><span style=\"font-size: 20px; background-color: #f18500;\">S\u00e9minaire du CEMES<\/span><\/p>\n<p><span style=\"font-size: 20px;\"><span style=\"color: #191970;\"><strong>J\u00e9r\u00e9mie Teyssier<\/strong><\/span> (QMP \u2013 Universit\u00e9 de Gen\u00e8ve)<\/span><\/p>\n<p><span style=\"background-color: #cecece;\">Seminar CEMES, 17\/04\/2025, 11H, salle de conf\u00e9rence<\/span><\/p>\n<p><strong>R\u00e9sum\u00e9 :<\/strong><br \/>\nNous avons con\u00e7u un syst\u00e8me innovant capable de mesurer simultan\u00e9ment deux types de signaux optiques : la r\u00e9ponse Raman et la g\u00e9n\u00e9ration de seconde harmonique, le tout \u00e0 l\u2019\u00e9chelle microscopique et avec une pr\u00e9cision extr\u00eame. Pour y parvenir, nous avons enti\u00e8rement automatis\u00e9 notre spectrom\u00e8tre, ce qui a consid\u00e9rablement am\u00e9lior\u00e9 la qualit\u00e9 des donn\u00e9es obtenues.<\/p>\n<p>Au-del\u00e0 des avanc\u00e9es techniques, nous partagerons les bonnes (et les mauvaises !) pratiques pour r\u00e9ussir une mesure Raman. Nous montrerons aussi comment un spectrom\u00e8tre Raman peut servir non seulement d\u2019outil d\u2019analyse, mais aussi de four et de sonde thermom\u00e9trique. Gr\u00e2ce \u00e0 cette approche unique, il devient possible d\u2019\u00e9tudier des ph\u00e9nom\u00e8nes physiques complexes, comme les transitions de phase et les brisures de sym\u00e9trie dans les mat\u00e9riaux ferro\u00e9lectriques, sans n\u00e9cessiter de four externe. Notre syst\u00e8me permet ainsi d\u2019explorer des temp\u00e9ratures extr\u00eames, allant jusqu\u2019\u00e0 2000\u00b0C, avec une pr\u00e9cision in\u00e9gal\u00e9e.<\/p>\n<p>Nous illustrerons le potentiel de cet instrument \u00e0 travers divers exemples d\u2019application comme les nickelates de terres rares, les mat\u00e9riaux multiferro\u00efques, les mat\u00e9riaux 2D, et quelques premi\u00e8res mesures en biologie.<\/p>\n<p>Enfin, nous \u00e9voquerons les d\u00e9veloppements brevet\u00e9s issus de ce projet et les \u00e9tapes en cours pour transformer cette technologie en un produit commercialisable.<\/p>\n<p><a href=\"https:\/\/dqmp.unige.ch\/news\/jeremie-teyssier-and-volodymyr-multian-received-an-innogap-grant\/\">https:\/\/dqmp.unige.ch\/news\/jeremie-teyssier-and-volodymyr-multian-received-an-innogap-grant\/<\/a><\/p>\n<hr \/>\n<p><div class=\"leaflet-map WPLeafletMap\" style=\"height:300px; width:70%;\"><\/div><script>\nwindow.WPLeafletMapPlugin = window.WPLeafletMapPlugin || [];\nwindow.WPLeafletMapPlugin.push(function WPLeafletMapShortcode() {\/*<script>*\/\nvar baseUrl = atob('aHR0cHM6Ly97c30udGlsZS5vcGVuc3RyZWV0bWFwLm9yZy97en0ve3h9L3t5fS5wbmc=');\nvar base = (!baseUrl && window.MQ) ?\n    window.MQ.mapLayer() : L.tileLayer(baseUrl,\n        L.Util.extend({}, {\n            detectRetina: 0,\n        },\n        {\"subdomains\":\"abc\",\"noWrap\":false,\"maxZoom\":18}        )\n    );\n    var options = L.Util.extend({}, {\n        layers: [base],\n        attributionControl: false\n    },\n    {\"zoomControl\":true,\"scrollWheelZoom\":true,\"doubleClickZoom\":true,\"fitBounds\":true,\"minZoom\":9,\"maxZoom\":18,\"maxBounds\":null,\"attribution\":\"<a href=\\\"http:\\\/\\\/leafletjs.com\\\" title=\\\"Une biblioth\\u00e8que JS pour des cartes interactives\\\">Leaflet<\\\/a>; \\u00a9 <a href=\\\"http:\\\/\\\/www.openstreetmap.org\\\/copyright\\\">OpenStreetMap<\\\/a> contributeurs\"},\n    {});\nwindow.WPLeafletMapPlugin.createMap(options).setView([43.579318389757,1.462611999468],16);window.WPLeafletMapPlugin.createScale({});});<\/script><br \/>\n<script>\nwindow.WPLeafletMapPlugin = window.WPLeafletMapPlugin || [];\nwindow.WPLeafletMapPlugin.push(function WPLeafletMarkerShortcode() {\/*<script>*\/\nvar map = window.WPLeafletMapPlugin.getCurrentMap();\nvar group = window.WPLeafletMapPlugin.getCurrentGroup();\nvar marker_options = window.WPLeafletMapPlugin.getIconOptions({});\nvar marker = L.marker(\n    [0,0],\n    marker_options\n);\nvar is_image = map.is_image_map;\n    marker.setLatLng( map.getCenter() );\nif (marker_options.draggable) {\n    marker.on('dragend', function () {\n        var latlng = this.getLatLng();\n        var lat = latlng.lat;\n        var lng = latlng.lng;\n        if (is_image) {\n            console.log('leaflet-marker y=' + lat + ' x=' + lng);\n        } else {\n            console.log('leaflet-marker lat=' + lat + ' lng=' + lng);\n        }\n    });\n}\nmarker.addTo( group );\nmarker.bindPopup(window.WPLeafletMapPlugin.unescape('CEMES'));window.WPLeafletMapPlugin.markers.push( marker );\n        });<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Location : salle de conf\u00e9rence<\/p>\n","protected":false},"author":5,"featured_media":0,"template":"","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","neve_meta_reading_time":"","_tribe_events_status":"","_tribe_events_status_reason":"","footnotes":""},"tags":[],"tribe_events_cat":[306,48,233],"class_list":["post-11346","tribe_events","type-tribe_events","status-publish","hentry","tribe_events_cat-cemes","tribe_events_cat-events","tribe_events_cat-seminars","cat_cemes","cat_events","cat_seminars"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - 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