{"id":9944,"date":"2024-02-20T09:40:12","date_gmt":"2024-02-20T08:40:12","guid":{"rendered":"https:\/\/lpg-umr6112.fr\/un-spectrometre-raman-pour-etudier-la-matiere-organique-complexe\/"},"modified":"2024-09-19T14:21:46","modified_gmt":"2024-09-19T12:21:46","slug":"un-spectrometre-raman-pour-etudier-la-matiere-organique-complexe","status":"publish","type":"page","link":"https:\/\/lpg-umr6112.fr\/en\/a-raman-spectrometer-to-study-complex-organic-matter\/","title":{"rendered":"A Raman spectrometer to study complex organic matter"},"content":{"rendered":"<div class=\"menu-erc-promises-project-container\"><ul id=\"menu-erc-promises-project\" class=\"menu\"><li id=\"menu-item-5969\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-5969\"><a href=\"https:\/\/lpg-umr6112.fr\/en\/erc-promises\/\">Presentation<\/a><\/li>\n<li id=\"menu-item-9955\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-9955\"><a href=\"https:\/\/lpg-umr6112.fr\/en\/news-erc-promises\/\">News ERC Promises<\/a><\/li>\n<li id=\"menu-item-5974\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-5974\"><a href=\"https:\/\/lpg-umr6112.fr\/en\/promises-team-vacancies\/\">Job offers<\/a><\/li>\n<li id=\"menu-item-6252\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-6252\"><a href=\"https:\/\/lpg-umr6112.fr\/en\/proposed-thesis-topic-in-2023\/\">Proposed thesis topic in 2023<\/a><\/li>\n<li id=\"menu-item-6244\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-6244\"><a href=\"https:\/\/lpg-umr6112.fr\/en\/publications-erc-promises-project\/\">Publications<\/a><\/li>\n<li id=\"menu-item-9956\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-9956\"><a href=\"https:\/\/lpg-umr6112.fr\/en\/outreach\/\">Outreach<\/a><\/li>\n<li id=\"menu-item-10607\" class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-10607\"><a href=\"https:\/\/gitlab.univ-nantes.fr\/promises\">Open data<\/a><\/li>\n<\/ul><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"4800\" height=\"2453\" src=\"https:\/\/lpg-umr6112.fr\/wp-content\/uploads\/2024\/09\/DSC_1260.jpg\" alt=\"\" class=\"wp-image-12993\" style=\"width:700px\"\/><figcaption class=\"wp-element-caption\"><em><sub>Pauline L\u00e9v\u00eaque, Olivier Bollengier and Erwan Le Menn near the Raman spectrometer &#8211; Credit: Nino Quillent-Elinguel<\/sub><\/em><\/figcaption><\/figure><\/div>\n\n\n<p><strong>The Promises project<\/strong> <strong>aims to understand the role of complex organic matter interacting with water and high-pressure rocks in the conditions of the icy moons of Jupiter and Saturn.<\/strong><\/p>\n\n\n\n<p>To answer this question experimentally, <strong>the LPG conducts experiments at high pressure (7 GPA) and high temperature (800 K) in diamond anvil cells.<\/strong> These optical (transparent) cells enable samples to be observed during experiments. In this way, sample reactions and evolution, such as gas production or phase changes, can be accessed by optical diagnostics such as <strong>Raman spectroscopy.<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69e7084f74814&quot;}\" data-wp-interactive=\"core\/image\" class=\"aligncenter size-large is-resized wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on-async--click=\"actions.showLightbox\" data-wp-on-async--load=\"callbacks.setButtonStyles\" data-wp-on-async-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/lpg-umr6112.fr\/wp-content\/uploads\/2024\/09\/DSC_1266-1024x683.jpg\" alt=\"\" class=\"wp-image-12995\" style=\"width:571px;height:auto\" srcset=\"https:\/\/lpg-umr6112.fr\/wp-content\/uploads\/2024\/09\/DSC_1266-1024x683.jpg 1024w, https:\/\/lpg-umr6112.fr\/wp-content\/uploads\/2024\/09\/DSC_1266-300x200.jpg 300w, https:\/\/lpg-umr6112.fr\/wp-content\/uploads\/2024\/09\/DSC_1266-768x512.jpg 768w, https:\/\/lpg-umr6112.fr\/wp-content\/uploads\/2024\/09\/DSC_1266-1536x1024.jpg 1536w, https:\/\/lpg-umr6112.fr\/wp-content\/uploads\/2024\/09\/DSC_1266-2048x1365.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on-async--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">Diamond anvil cells under the electron microscope &#8211; Credit: Erwan Le Menn\/Nino Quillent-Elinguel<\/figcaption><\/figure><\/div>\n\n\n<div style=\"height:1px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>The LPG has therefore acquired a state-of-the-art Raman spectrometer.<\/strong> Equipped with 3 laser sources (355, 405, 515 nm) and several diffraction gratings, the equipment covers the near <strong>UV-Visible spectral range.<\/strong> Its large numerical aperture makes it a very bright system, enabling laser power and acquisition times to be kept to a minimum, thus protecting the sample from any laser-related damage.<\/p>\n\n\n\n<p>During these experiments, the anvil cells are subjected to high temperatures. To preserve the optical components and provide adequate space for the cell heating system, the LPG&#8217;s Raman spectrometer has been equipped with an optical arm dedicated to beam offset. The beam is oriented parallel to the sample stage, and targets the vertically-mounted cell. In this configuration, the samples are potentially sensitive to gravity, enabling us to observe interesting new arrangements in the reactions of matter subjected to different pressure and temperature conditions.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"384\" src=\"https:\/\/lpg-umr6112.fr\/wp-content\/uploads\/2024\/09\/Collage-Raman01-1024x384.jpg\" alt=\"\" class=\"wp-image-12983\" style=\"width:600px\" srcset=\"https:\/\/lpg-umr6112.fr\/wp-content\/uploads\/2024\/09\/Collage-Raman01-1024x384.jpg 1024w, https:\/\/lpg-umr6112.fr\/wp-content\/uploads\/2024\/09\/Collage-Raman01-300x113.jpg 300w, https:\/\/lpg-umr6112.fr\/wp-content\/uploads\/2024\/09\/Collage-Raman01-768x288.jpg 768w, https:\/\/lpg-umr6112.fr\/wp-content\/uploads\/2024\/09\/Collage-Raman01-1536x576.jpg 1536w, https:\/\/lpg-umr6112.fr\/wp-content\/uploads\/2024\/09\/Collage-Raman01.jpg 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><em><sub>Beam-shifting optical arm &#8211; Credit: Nino Quillent-Elinguel<\/sub><\/em><\/figcaption><\/figure><\/div>\n\n\n<p>Initial experimental results are extremely encouraging, with <strong>observations of the production of gases such as carbon dioxide and methane.<\/strong> Experiments on large-scale instruments (Synchrotron, FTICR) are underway to consolidate the interpretation of these results in the context of the Solar System&#8217;s ice moons.<\/p>\n\n\n\n<p class=\"has-text-align-right has-text-color has-link-color wp-elements-f7d94c9fa5a42e721f0248cde541412f\" style=\"color:#f6a25e;font-size:14px\">PUBLISHED ON FEBRUARY 20TH, 2024<\/p>\n\n\n\n<div style=\"overflow: auto\">\n    <div class=\"wp-block-button\" style=\"text-decoration:none;float: left\">\n        <a class=\"wp-block-button__link has-black-color has-text-color has-background has-link-color wp-element-button\" href=\"https:\/\/lpg-umr6112.fr\/en\/portrait-of-a-doctoral-student-camille-delarue\/\" style=\"background-color:#f6a25e;width: 150px\"> &lt; Previous <\/a>\n    <\/div>\n    <div class=\"wp-block-button\" style=\"text-decoration:none;float: right\">\n        <a class=\"wp-block-button__link has-black-color has-text-color has-background has-link-color wp-element-button\" href=\"https:\/\/lpg-umr6112.fr\/en\/portrait-of-a-doctoral-student-pauline-leveque\/\" style=\"background-color:#f6a25e;width: 150px\"> Next &gt; <\/a>\n    <\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>The Promises project aims to understand the role of complex organic matter interacting with water and high-pressure rocks in the conditions of the icy moons of Jupiter and Saturn. To [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_price":"","_stock":"","_tribe_ticket_header":"","_tribe_default_ticket_provider":"","_tribe_ticket_capacity":"0","_ticket_start_date":"","_ticket_end_date":"","_tribe_ticket_show_description":"","_tribe_ticket_show_not_going":false,"_tribe_ticket_use_global_stock":"","_tribe_ticket_global_stock_level":"","_global_stock_mode":"","_global_stock_cap":"","_tribe_rsvp_for_event":"","_tribe_ticket_going_count":"","_tribe_ticket_not_going_count":"","_tribe_tickets_list":"[]","_tribe_ticket_has_attendee_info_fields":false,"footnotes":""},"coauthors":[96],"class_list":["post-9944","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/lpg-umr6112.fr\/en\/wp-json\/wp\/v2\/pages\/9944","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lpg-umr6112.fr\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/lpg-umr6112.fr\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/lpg-umr6112.fr\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/lpg-umr6112.fr\/en\/wp-json\/wp\/v2\/comments?post=9944"}],"version-history":[{"count":2,"href":"https:\/\/lpg-umr6112.fr\/en\/wp-json\/wp\/v2\/pages\/9944\/revisions"}],"predecessor-version":[{"id":13766,"href":"https:\/\/lpg-umr6112.fr\/en\/wp-json\/wp\/v2\/pages\/9944\/revisions\/13766"}],"wp:attachment":[{"href":"https:\/\/lpg-umr6112.fr\/en\/wp-json\/wp\/v2\/media?parent=9944"}],"wp:term":[{"taxonomy":"author","embeddable":true,"href":"https:\/\/lpg-umr6112.fr\/en\/wp-json\/wp\/v2\/coauthors?post=9944"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}