{"id":1250,"date":"2025-06-28T11:03:32","date_gmt":"2025-06-28T09:03:32","guid":{"rendered":"https:\/\/www.artinphysics.fr\/?page_id=1250"},"modified":"2025-06-28T11:20:19","modified_gmt":"2025-06-28T09:20:19","slug":"1250-2","status":"publish","type":"page","link":"https:\/\/www.artinphysics.fr\/index.php\/1250-2\/","title":{"rendered":""},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.artinphysics.fr\/wp-content\/uploads\/2023\/07\/DSC01627-1024x683.jpg\" alt=\"\" class=\"wp-image-6\" srcset=\"https:\/\/www.artinphysics.fr\/wp-content\/uploads\/2023\/07\/DSC01627-1024x683.jpg 1024w, https:\/\/www.artinphysics.fr\/wp-content\/uploads\/2023\/07\/DSC01627-300x200.jpg 300w, https:\/\/www.artinphysics.fr\/wp-content\/uploads\/2023\/07\/DSC01627-768x512.jpg 768w, https:\/\/www.artinphysics.fr\/wp-content\/uploads\/2023\/07\/DSC01627-1536x1024.jpg 1536w, https:\/\/www.artinphysics.fr\/wp-content\/uploads\/2023\/07\/DSC01627-2048x1365.jpg 2048w, https:\/\/www.artinphysics.fr\/wp-content\/uploads\/2023\/07\/DSC01627-507x338.jpg 507w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Hors cadre &#8211; Une lumi\u00e8re polaris\u00e9e<\/h3>\n\n\n\n<p>Sortie d\u2019un des marbres optiques de l\u2019Institut d\u2019Optique sur le plateau de Saclay, cette image saisit un ensemble de syst\u00e8mes optiques maintenus par des supports m\u00e9caniques. Au centre de la sc\u00e8ne, un cube capte particuli\u00e8rement la lumi\u00e8re. Un cylindre transparent s\u2019y refl\u00e8te avec une teinte l\u00e9g\u00e8rement verte. L\u2019ensemble baigne dans une atmosph\u00e8re de clair-obscur intrigante.<\/p>\n\n\n\n<p>Ce cube lumineux est en r\u00e9alit\u00e9 un polariseur, un outil essentiel en optique. Sa fonction est de forcer l\u2019onde lumineuse \u00e0 osciller selon une seule direction \u2014 une propri\u00e9t\u00e9 que l\u2019on nomme polarisation. Imaginez le champ \u00e9lectrique de la lumi\u00e8re comme une corde de guitare vibrant dans toutes les directions. Un polariseur agirait comme un guide, imposant \u00e0 la corde de ne vibrer que dans une seule orientation, par exemple, du centre vers l\u2019ext\u00e9rieur.<\/p>\n\n\n\n<p>Cette ma\u00eetrise de la polarisation ouvre la porte \u00e0 de nombreuses applications pratiques. Par exemple, les atomes et les mol\u00e9cules r\u00e9agissent diff\u00e9remment selon l\u2019orientation de l\u2019onde lumineuse, une propri\u00e9t\u00e9 exploit\u00e9e dans diverses technologies. En photographie, les polariseurs sont souvent utilis\u00e9s pour \u00e9liminer les reflets ind\u00e9sirables, am\u00e9liorant ainsi la qualit\u00e9 des images. <\/p>\n\n\n\n<p>Une r\u00e9alisation Art in physics, textes librement inspir\u00e9s des prises de vues et des photographies d\u2019Hippolyte Dupont.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Pour en savoir plus :<\/h4>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h5 class=\"wp-block-heading\">Pour comprendre ce qu&#8217;est la polarisation<\/h5>\n\n\n\n<p>Une explication du principe de la polarisation de la lumi\u00e8re <\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Polarisation et polariseur\" width=\"880\" height=\"495\" src=\"https:\/\/www.youtube.com\/embed\/kA_61DLizu4?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h5 class=\"wp-block-heading\">Une autre vid\u00e9o pour visualiser ce qu&#8217;est la polarisation <\/h5>\n\n\n\n<p>La polarisation en image<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-4-3 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"1-La polarisation de la lumi\u00e8re, c&#039;est quoi ?\" width=\"880\" height=\"660\" src=\"https:\/\/www.youtube.com\/embed\/7BladqM75TE?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h5 class=\"wp-block-heading\">Pour aller encore plus loin <\/h5>\n\n\n\n<p>Une vid\u00e9o plus d\u00e9taill\u00e9e sur la polarisation de la lumi\u00e8re sur le <a href=\"https:\/\/culturesciencesphysique.ens-lyon.fr\/ressource\/physique-animee-polarisation1.xml\">lien suivant<\/a>. <\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"La physique anim\u00e9e : Qu&#039;est-ce que la polarisation de la lumi\u00e8re ?\" width=\"880\" height=\"495\" src=\"https:\/\/www.youtube.com\/embed\/V93qijbWCWI?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Hors cadre &#8211; Une lumi\u00e8re polaris\u00e9e Sortie d\u2019un des marbres optiques de l\u2019Institut d\u2019Optique sur le plateau de Saclay, cette<\/p>\n<p><a href=\"https:\/\/www.artinphysics.fr\/index.php\/1250-2\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"><\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_vp_format_video_url":"","_vp_image_focal_point":[],"footnotes":""},"class_list":["post-1250","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.artinphysics.fr\/index.php\/wp-json\/wp\/v2\/pages\/1250","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.artinphysics.fr\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.artinphysics.fr\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.artinphysics.fr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.artinphysics.fr\/index.php\/wp-json\/wp\/v2\/comments?post=1250"}],"version-history":[{"count":6,"href":"https:\/\/www.artinphysics.fr\/index.php\/wp-json\/wp\/v2\/pages\/1250\/revisions"}],"predecessor-version":[{"id":1261,"href":"https:\/\/www.artinphysics.fr\/index.php\/wp-json\/wp\/v2\/pages\/1250\/revisions\/1261"}],"wp:attachment":[{"href":"https:\/\/www.artinphysics.fr\/index.php\/wp-json\/wp\/v2\/media?parent=1250"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}