{"id":48045,"date":"2021-10-20T14:50:01","date_gmt":"2021-10-20T12:50:01","guid":{"rendered":"https:\/\/www.iemn.fr\/?p=48045"},"modified":"2021-10-20T15:13:53","modified_gmt":"2021-10-20T13:13:53","slug":"master-thesis-position-using-strong-coupling-to-detect-gas-traces-in-the-thz","status":"publish","type":"post","link":"https:\/\/www.iemn.fr\/en\/2nd_pages\/2nd-offres-demplois\/master-thesis-position-using-strong-coupling-to-detect-gas-traces-in-the-thz.html","title":{"rendered":"Master thesis position: Using strong coupling to detect gas traces in the THz"},"content":{"rendered":"<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-ljsub1-aaf3492137d78ccefcf73193c289cd97\">\n.flex_column.av-ljsub1-aaf3492137d78ccefcf73193c289cd97{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-ljsub1-aaf3492137d78ccefcf73193c289cd97 av_three_fourth  avia-builder-el-0  el_before_av_one_fourth  avia-builder-el-first  first flex_column_div av-zero-column-padding'     ><section  class='av_textblock_section av-kuzj5bxs-db864237ce5f7fe599915530862318d1'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h3 style=\"text-align: center;\">Master thesis position: Using strong coupling to detect gas traces in the THz<\/h3>\n<hr \/>\n<p><strong>Context and objectives<\/strong><\/p>\n<p>Halogen species (ie CH3X; OX and HX; XX being Cl, I or Br) in gas phase are produced by numerous industries, oceans and several other bio systems. During the past decades, researchers demonstrated their major role in the atmosphere. They act on pollutants and particles through reactional cycles and are involved in the radiative forcing. They are major players of the Earth's energy budget and global warming. Still, today no technics exist able to measure these species at realistic concentration in real time.<\/p>\n<p>In this multidisciplinary internship, we propose to implement an innovative physical concept shown on figure 1: coupling of the molecular frequency comb of a halogen gas as to the optical frequency comb of Fabry-Perot cavity. This coupling will enhance the light matter interaction and consequently enable to detect extremely small concentration of gas. We will probe this system using <a href=\"https:\/\/en.wikipedia.org\/wiki\/Terahertz_time-domain_spectroscopy\" target=\"_blank\" rel=\"noopener\">terahertz time domain spectroscopy<\/a> (TDS) and a dedicated algorithm developed in the team to the study of gas by TDS.<\/p>\n<p><a href=\"..\/wp-content\/uploads\/2021\/10\/stag2.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-48048 size-full\" src=\"..\/wp-content\/uploads\/2021\/10\/stag2.jpg\" alt=\"\" width=\"709\" height=\"188\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/10\/stag2.jpg 709w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/10\/stag2-300x80.jpg 300w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/10\/stag2-18x5.jpg 18w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2021\/10\/stag2-705x187.jpg 705w\" sizes=\"auto, (max-width: 709px) 100vw, 709px\" \/><\/a><\/p>\n<p><span style=\"color: #808080;\"><em>Figure 1 : Left, molecular frequency comb (MFC) of bromomethane given as an example (changing the halogen will not change much the spectrum; other radicals change he spectrum but keep the comb behavior). Right the cavity made by two facing metasurface mirrors building the optical frequency comb (OFC) and enabling the coupling between the OFC and the MFC<\/em><\/span><\/p>\n<p><strong>Mission statement:<\/strong><br \/>\nThe goal of this research internship is to launch this study together with a post doctoral fellow who will begin in January. The student will have to take over several of the many aspects gradually. The student will have to pick two tasks on which he\/she will spend most of his\/her time. This includes &micro;-nano fabrication, THz-TDS gas experiments and modeling of the strong coupling.<\/p>\n<p><strong>Environment:<\/strong><br \/>\nThe student will work with a team of experienced researchers in the THz-Photonics group at IEMN Laboratory (https:\/\/photoniquethz.univ-lille.fr\/en\/). The group has a long lasting experience in the conception and realization of THz optoelectronic devices, and is fully equipped to carry out this project. The Laboratory hosts a 1500m2 clean-room with state of the art growth and fabrication facilities. IEMN is located in Lille, the capital of French Flanders, a vibrant city close to the Belgian border at 50&nbsp;min by train from Paris-CDG airport.<\/p>\n<p><strong>Skills:<\/strong><br \/>\nWe are looking for physics or engineering master student or equivalent. Having one of the following skills would greatly increase the chance of success of any application: Experimental optics &ndash; Spectroscopy &ndash; Python coding -&micro;-nano fabrication<br \/>\nThe exact tasks in which the student will be involved will be discussed together with him\/her and the team and will depend on its capacities and taste as the needs of the team. We strongly advise any potential candidate to contact us by email or elsewhere to begin the discussion before any formal application.<\/p>\n<p><strong>Key words:<\/strong> TeraHertz, Time domain spectroscopy, rotational spectroscopy<\/p>\n<p><strong>Possibility to go on with a PhD?<\/strong><br \/>\nYes, we are looking for two PhD student in the group next year one of them will have to deal with a really close subject.<\/p>\n<p><strong>Envisaged fellowship?<\/strong><br \/>\nWe already applied for several nationwide and European grants but the safest funding way will be to get a university of Lille grant. We are highly supported by the university and the chance of success are very high in this call for a good candidate.<\/p>\n<\/div><\/section><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-vbhlcd-13ef1f3987ed89be461ee0f4f68c4a4b\">\n.flex_column.av-vbhlcd-13ef1f3987ed89be461ee0f4f68c4a4b{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-vbhlcd-13ef1f3987ed89be461ee0f4f68c4a4b av_one_fourth  avia-builder-el-2  el_after_av_three_fourth  avia-builder-el-last  flex_column_div av-zero-column-padding'     ><section  class='av_textblock_section av-kuzj8c92-2581b5b8ca48785ecca5bb4051d23927'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><div class=\"detailRight\">\n<p><span class=\"intertitre1\"><strong><a href=\"..\/wp-content\/uploads\/2019\/04\/img_emploi2.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-35736 alignnone\" src=\"..\/wp-content\/uploads\/2019\/04\/img_emploi2.jpg\" alt=\"\" width=\"246\" height=\"256\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/04\/img_emploi2.jpg 246w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/04\/img_emploi2-36x36.jpg 36w\" sizes=\"auto, (max-width: 246px) 100vw, 246px\" \/><\/a><br \/>\n<\/strong><\/span><\/p>\n<p><strong>Host Unit:<\/strong><br \/>\n<span class=\"texte_courant\">IEMN UMR CNRS 8520<br \/>\n<\/span><span class=\"texte_courant\">Micro and Nano Manufacturing Center<br \/>\n<\/span><span class=\"texte_courant\">Avenue Poincar\u00e9<\/span><br \/>\n<span class=\"texte_courant\">59652 VILLENEUVE D'ASCQ CEDEX<br \/>\n<a href=\"http:\/\/www.iemn.univ-lille1.fr\" target=\"_blank\" rel=\"noopener noreferrer\">www.iemn.fr<\/a><\/span><\/p>\n<p>\u00a0<\/p>\n<p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-13ewzjw-9a9f1cfb2a3570afb0f44a0c4adce97a\">\n.av_font_icon.av-13ewzjw-9a9f1cfb2a3570afb0f44a0c4adce97a{\ncolor:#800000;\nborder-color:#800000;\n}\n.av_font_icon.av-13ewzjw-9a9f1cfb2a3570afb0f44a0c4adce97a .av-icon-char{\nfont-size:30px;\nline-height:30px;\n}\n<\/style>\n<span  class='av_font_icon av-13ewzjw-9a9f1cfb2a3570afb0f44a0c4adce97a 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='\ue871' data-av_iconfont='entypo-fontello' ><\/span><\/span>Contact: Dr Sophie Eliet \/ Dr Romain Peretti<\/p>\n<p><div  class='avia-button-wrap av-rpqvoq-235799706c3c8d7939d409d01a5f38da-wrap avia-button-left  avia-builder-el-5  el_after_av_font_icon  el_before_av_button'><a href='mailto:sophie.eliet@univ-lille.fr'  class='avia-button av-rpqvoq-235799706c3c8d7939d409d01a5f38da av-link-btn avia-icon_select-yes-left-icon avia-size-small avia-position-left avia-color-silver'   aria-label=\"sophie.eliet@univ-lille.fr\"><span class='avia_button_icon avia_button_icon_left' aria-hidden='true' data-av_icon='\ue805' data-av_iconfont='entypo-fontello'><\/span><span class='avia_iconbox_title' >sophie.eliet@univ-lille.fr<\/span><\/a><\/div><br \/>\n<div  class='avia-button-wrap av-rpqvoq-6d1813174cbca2901e618d99cb1c3af8-wrap avia-button-left  avia-builder-el-6  el_after_av_button  avia-builder-el-last'><a href='mailto:romain.peretti@univ-lille.fr'  class='avia-button av-rpqvoq-6d1813174cbca2901e618d99cb1c3af8 av-link-btn avia-icon_select-yes-left-icon avia-size-small avia-position-left avia-color-silver'   aria-label=\"romain.peretti@univ-lille.fr\"><span class='avia_button_icon avia_button_icon_left' aria-hidden='true' data-av_icon='\ue805' data-av_iconfont='entypo-fontello'><\/span><span class='avia_iconbox_title' >romain.peretti@univ-lille.fr<\/span><\/a><\/div><\/p>\n<p>\u00a0<\/p>\n<\/div>\n<\/div><\/section><\/div><\/p>","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34],"tags":[],"class_list":["post-48045","post","type-post","status-publish","format-standard","hentry","category-2nd-offres-demplois"],"_links":{"self":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/48045","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\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/comments?post=48045"}],"version-history":[{"count":0,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/48045\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/media?parent=48045"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/categories?post=48045"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/tags?post=48045"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}