{"id":55726,"date":"2022-12-15T13:12:10","date_gmt":"2022-12-15T11:12:10","guid":{"rendered":"https:\/\/www.iemn.fr\/?p=55726"},"modified":"2022-12-15T17:03:41","modified_gmt":"2022-12-15T15:03:41","slug":"these-theo-hannotte-terahertz-radiation-confinement-using-metallic-micro-resonators-for-spectroscopy-and-manipulation-of-single-nanometric-samples","status":"publish","type":"post","link":"https:\/\/www.iemn.fr\/en\/agenda\/these-theo-hannotte-terahertz-radiation-confinement-using-metallic-micro-resonators-for-spectroscopy-and-manipulation-of-single-nanometric-samples.html","title":{"rendered":"THESE : Th\u00e9o HANNOTTE \u2013 Terahertz radiation confinement using metallic micro-resonators, for spectroscopy and manipulation of single nanometric samples.\u00a0\u00bb"},"content":{"rendered":"<div id='layer_slider_1'  class='avia-layerslider main_color avia-shadow  avia-builder-el-0  el_before_av_heading  avia-builder-el-first  container_wrap sidebar_right'  style='height: 261px;'  ><div id=\"layerslider_58_1j7tm5q3hws5y\" data-ls-slug=\"homepageslider\" class=\"ls-wp-container fitvidsignore ls-selectable\" style=\"width:1140px;height:260px;margin:0 auto;margin-bottom: 0px;\"><div class=\"ls-slide\" data-ls=\"duration:6000;transition2d:5;\"><img loading=\"lazy\" decoding=\"async\" width=\"2600\" height=\"270\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1.jpg\" class=\"ls-bg\" alt=\"\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1.jpg 2600w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-300x31.jpg 300w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-768x80.jpg 768w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-1030x107.jpg 1030w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-1500x156.jpg 1500w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-705x73.jpg 705w\" sizes=\"auto, (max-width: 2600px) 100vw, 2600px\" \/><ls-layer style=\"font-size:14px;text-align:left;font-style:normal;text-decoration:none;text-transform:none;font-weight:700;letter-spacing:0px;border-style:solid;border-color:#000;background-position:0% 0%;background-repeat:no-repeat;width:180px;height:30px;left:0px;top:231px;line-height:32px;color:#ffffff;border-radius:6px 6px 6px 6px;padding-left:50px;background-color:rgba(0, 0, 0, 0.57);\" class=\"ls-l ls-ib-icon ls-text-layer\" data-ls=\"minfontsize:0;minmobilefontsize:0;\"><i class=\"fa fa-quote-right\" style=\"color:#ffffff;margin-right:0.8em;font-size:1em;transform:translateY( -0.125em );\"><\/i>ACTUALITES<\/ls-layer><\/div><\/div><\/div><div id='after_layer_slider_1'  class='main_color av_default_container_wrap container_wrap sidebar_right'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-small alpha units'><div class='post-entry post-entry-type-page post-entry-55726'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lboz3pgv-eccdf26f8e55f2d76f8485fa69084048\">\n#top .av-special-heading.av-lboz3pgv-eccdf26f8e55f2d76f8485fa69084048{\nmargin:0 0 10px 0;\npadding-bottom:4px;\n}\nbody .av-special-heading.av-lboz3pgv-eccdf26f8e55f2d76f8485fa69084048 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-lboz3pgv-eccdf26f8e55f2d76f8485fa69084048 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-lboz3pgv-eccdf26f8e55f2d76f8485fa69084048 av-special-heading-h2  avia-builder-el-1  el_after_av_layerslider  el_before_av_hr  avia-builder-el-first'><h2 class='av-special-heading-tag'  itemprop=\"headline\"  >THESE : Th\u00e9o HANNOTTE \u2013 Terahertz radiation confinement using metallic micro-resonators, for spectroscopy and manipulation of single nanometric samples.\u00a0\u00bb<\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-18u73nj-dad6a947580930e400fc42ba200e80f1\">\n#top .hr.av-18u73nj-dad6a947580930e400fc42ba200e80f1{\nmargin-top:5px;\nmargin-bottom:5px;\n}\n.hr.av-18u73nj-dad6a947580930e400fc42ba200e80f1 .hr-inner{\nwidth:100%;\n}\n<\/style>\n<div  class='hr av-18u73nj-dad6a947580930e400fc42ba200e80f1 hr-custom  avia-builder-el-2  el_after_av_heading  el_before_av_textblock  hr-left hr-icon-no'><span class='hr-inner inner-border-av-border-thin'><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<section  class='av_textblock_section av-jriy64i8-2f4600354c0449b610997916bbd9b6bc'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" >\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-13ewzjw-68e036126b913e5028f77311dc66b825\">\n.av_font_icon.av-13ewzjw-68e036126b913e5028f77311dc66b825{\ncolor:#bfbfbf;\nborder-color:#bfbfbf;\n}\n.av_font_icon.av-13ewzjw-68e036126b913e5028f77311dc66b825 .av-icon-char{\nfont-size:60px;\nline-height:60px;\n}\n<\/style>\n<span  class='av_font_icon av-13ewzjw-68e036126b913e5028f77311dc66b825 avia_animate_when_visible av-icon-style- avia-icon-pos-left avia-icon-animate'><span class='av-icon-char' aria-hidden='true' data-av_icon='\ue8c9' data-av_iconfont='entypo-fontello' ><\/span><\/span>\n<p><strong>Th\u00e9o HANNOTTE<br \/>\n<\/strong><\/p>\n<p>Soutenance : 16 D\u00e9cembre \u00e0 14h00<strong><br \/>\n<\/strong>IEMN Amphitheatre - Central Laboratory - Villeneuve d'Ascq<\/p>\n<\/div><\/section>\n<section  class='av_textblock_section av-jtefqx33-628129dba2299b2ecd65ebfc92eac29d'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><div  class='hr av-kjh3zw-4dff888f744b728a1aca9b3a0971493a hr-default  avia-builder-el-6  avia-builder-el-no-sibling'><span class='hr-inner'><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<h5><strong><span style=\"color: #800000;\">Jury :<\/span><\/strong><\/h5>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>Yanko TODOROV\u00a0\u00a0\u00a0 \u00a0 \u00a0\u00a0\u00a0 \u00a0 \u00a0\u00a0\u00a0 Laboratoire de physique de l\u2019ENS\u00a0\u00a0 \u00a0\u00a0 \u00a0 Rapporteur<\/ul>\n<\/li>\n<li style=\"list-style-type: none;\">\n<ul>Oleg MITROFANOV\u00a0\u00a0 \u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0 University College London\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 Rapporteur<\/ul>\n<\/li>\n<li style=\"list-style-type: none;\">\n<ul>Giacomo SCALARI\u00a0\u00a0\u00a0 \u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 ETH Z\u00fcrich\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0 Examinateur<\/ul>\n<\/li>\n<li style=\"list-style-type: none; text-align: left;\">\n<ul>\n<li style=\"list-style-type: none;\">Romain PERETTI\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0 IEMN\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Co-directeur de th\u00e8se<\/li>\n<\/ul>\n<ul>\n<li style=\"list-style-type: none;\">Jean-Fran\u00e7ois LAMPIN\u00a0 \u00a0\u00a0 IEMN\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Directeur de Th\u00e8se<\/li>\n<\/ul>\n<ul>Peter Qiang LIU\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0 \u00a0 University at Buffalo\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 Invit\u00e9<\/ul>\n<ul>Juliette MANGENEY\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 Laboratoire de physique de l\u2019ENS\u00a0\u00a0\u00a0 \u00a0\u00a0 Examinatrice<\/ul>\n<\/li>\n<\/ul>\n<h5>Summary:<\/h5>\n<p>\u00c0 la fronti\u00e8re de l\u2019optique et de l\u2019\u00e9lectronique, la gamme de fr\u00e9quences t\u00e9rahertz (THz) suscite un int\u00e9r\u00eat croissant pour des applications allant des t\u00e9l\u00e9communications \u00e0 haut d\u00e9bit \u00e0 l\u2019\u00e9lectronique.<br \/>\nt\u00e9rahertz (THz) suscite un int\u00e9r\u00eat croissant dans des applications allant de la t\u00e9l\u00e9communication \u00e0 haut d\u00e9bit de donn\u00e9es au contr\u00f4le non destructif \u00e0 des essais non destructifs. La spectroscopie THz devrait avoir une utilit\u00e9 pr\u00e9cieuse pour l\u2019analyse des \u00e9chantillons biologiques. Cependant, de nombreux objets d\u2019int\u00e9r\u00eat tels que les cellules vivantes, les virus ou les prot\u00e9ines sont deux ordres de grandeur plus petits que les longueurs d\u2019onde THz.<br \/>\nLes r\u00e9sonateurs sub-longueur d\u2019onde ont \u00e9t\u00e9 largement \u00e9tudi\u00e9s en tant que blocs de construction de m\u00e9tamat\u00e9riaux. En tirant parti de leurs propri\u00e9t\u00e9s dispersives, il est possible de cr\u00e9er un milieu optique artificiel pr\u00e9sentant des propri\u00e9t\u00e9s di\u00e9lectriques exotiques, telles que l\u2019utilisation de l\u2019\u00e9nergie solaire. milieu optique artificiel avec des propri\u00e9t\u00e9s di\u00e9lectriques exotiques telles qu\u2019un indice de r\u00e9fraction n\u00e9gatif.<br \/>\nCependant, les progr\u00e8s r\u00e9cents de la spectroscopie THz et de l\u2019optique en champ proche ont ouvert la voie \u00e0 l\u2019\u00e9tude des sous-ondes individuelles. ouvrir la voie \u00e0 l\u2019\u00e9tude de r\u00e9sonateurs individuels sub-longueur d\u2019onde et \u00e0 l\u2019exploitation compl\u00e8te de leurs propri\u00e9t\u00e9s en champ proche. leurs propri\u00e9t\u00e9s en champ proche. Cette th\u00e8se se concentre sur le cas des r\u00e9sonateurs \u00e0 anneau fendu (SRR). (SRR), qui sont de petites structures m\u00e9talliques se comportant comme un circuit RLC confinant le champ \u00e9lectrique dans une zone arbitrairement petite. champ \u00e9lectrique dans une zone capacitive arbitrairement petite. Le confinement du champ \u00e9lectrique<br \/>\nfourni par les SRRs est utilis\u00e9 pour s\u2019affranchir de la limite de diffraction d\u2019Abbe et r\u00e9aliser des spectroscopies sur des \u00e9chantillons deux ordres de grandeur plus petits que la longueur d\u2019onde d\u2019int\u00e9r\u00eat.<br \/>\nDans cette th\u00e8se, nous d\u00e9veloppons un mod\u00e8le analytique afin de comprendre le comportement d\u2019une<br \/>\ncomportement d\u2019un SRR coupl\u00e9 \u00e0 un mat\u00e9riau \u00e9chantillon et extraire des informations sur ce mat\u00e9riau \u00e0 partir d\u2019une mesure spectroscopique du SRR. mesure spectroscopique du RRF. Ensuite, nous concevons et fabriquons un SRR compatible avec la spectroscopie THz dans le domaine temporel (THz-TDS) r\u00e9alis\u00e9e sur des r\u00e9sonateurs individuels.r\u00e9sonateurs individuels. Ensuite, nous explorons la microscopie \u00e0 balayage de diffusion en champ proche comme un outil pour mesurer le profil de champ \u00e9lectrique de r\u00e9sonateurs individuels.<br \/>\npour mesurer le profil du champ \u00e9lectrique du r\u00e9sonateur fabriqu\u00e9. Ensuite, nous r\u00e9alisons des exp\u00e9riences de THz-TDS sur des r\u00e9sonateurs uniques coupl\u00e9s \u00e0 une quantit\u00e9 nanom\u00e9trique d\u2019un \u00e9chantillon de mat\u00e9riau. Enfin, nous explorons la possibilit\u00e9 de g\u00e9n\u00e9rer des forces optiques \u00e0 partir du fort gradient de champ cr\u00e9\u00e9 par les SRR.<br \/>\nNous avons d\u00e9velopp\u00e9 un ensemble d\u2019outils qui nous ont permis d\u2019\u00eatre parmi les premiers \u00e0 effectuer des mesures spectroscopiques sur des r\u00e9sonateurs uniques dans la gamme THz et \u00e0 en extraire des informations. et d\u2019en extraire des informations. Les mod\u00e8les analytiques peuvent encore \u00eatre am\u00e9lior\u00e9s, mais ils fournissent d\u00e9j\u00e0 une bonne compr\u00e9hension des donn\u00e9es exp\u00e9rimentales. bonne compr\u00e9hension des donn\u00e9es exp\u00e9rimentales. Nous pensons que ce travail ouvre la voie la spectroscopie THz \u00e0 l\u2019\u00e9chelle nanom\u00e9trique.<\/p>\n<h5>Abstract:<\/h5>\n<p>At the boundary between optics and electronics, the terahertz (THz) frequency range has seen a growing interest in applications going from high data rate telecommunication to non-destructive testing. THz spectroscopy is expected to have a valuable purpose for analyzing biological samples. However, many objects of interest such as living cells, viruses, or proteins are two orders of magnitude smaller than THz wavelengths.<br \/>\nSub-wavelength resonators have been widely studied as building blocks of metamaterial. Taking advantage of their dispersive properties, one can create an artificial optical medium with exotic dielectric properties such as a negative refractive index.<br \/>\nHowever, the recent progress in THz spectroscopy and near-field optic has opened the path to study individual sub-wavelength resonators and fully take advantage of their near-field properties. This thesis focuses on the case of Split Ring Resonators (SRR), which are small metallic structures behaving as an RLC circuit confining the electric field in an arbitrarily small capacitive area. The electric field confinement provided by SRRs is used to get rid of the Abbe diffraction limit and perform spectroscopy on samples two orders of magnitude smaller than the wavelength of interest.<br \/>\nIn this thesis, we develop an analytical model to understand the behavior of an SRR coupled to a sample material and extract information on that material from a spectroscopic measurement of the SRR. Then we design and fabricate an SRR compatible with THz time-domain spectroscopy (THz-TDS) performed on individual resonators. Afterward, we explore scattering scanning near field microscopy as a tool to measure the electric field profile of the fabricated SRR. Next, we perform THz-TDS experiment on single resonators coupled to a nanometric amount of a samplematerial. Finally, we explore the possibility to generate optical forces from the strong field gradient created by SRRs.<br \/>\nWe developed a set of tools that allowed us to be among the first to conduct spectroscopy measurements on single SRRs in the THz range and extract information from them. The analytical models can still be improved, but they already provide a good understanding of the experimental data. We believe this work opens the pathto THz spectroscopy at the nano-scale.<\/p>\n<\/div><\/section>","protected":false},"excerpt":{"rendered":"","protected":false},"author":20,"featured_media":55738,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[87,65,84],"tags":[],"class_list":["post-55726","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-agenda-en","category-agenda","category-agenda-en-en"],"_links":{"self":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/55726","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/users\/20"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/comments?post=55726"}],"version-history":[{"count":0,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/55726\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/media\/55738"}],"wp:attachment":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/media?parent=55726"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/categories?post=55726"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/tags?post=55726"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}