{"id":129092,"date":"2018-10-03T10:38:41","date_gmt":"2018-10-03T09:38:41","guid":{"rendered":"https:\/\/www.realites.com.tn\/?p=129092"},"modified":"2018-10-03T10:38:41","modified_gmt":"2018-10-03T09:38:41","slug":"prix-nobel-un-trio-das-en-physiques","status":"publish","type":"post","link":"https:\/\/realites.com.tn\/fr\/prix-nobel-un-trio-das-en-physiques\/","title":{"rendered":"Prix Nobel : Un trio d\u2019as en physiques"},"content":{"rendered":"<div class=\"mom-post-meta single-post-meta\"><em><strong><span class=\"m_-6811978937476290452gmail-s1\">G\u00e9rard Mourou, Donna Strickland et Arthur Ashkin ont re\u00e7u le prix Nobel de physique pour voir r\u00e9volutionn\u00e9 la technologie du laser.<\/span><\/strong><\/em><\/div>\n<div><\/div>\n<div class=\"entry-content\">\n<p class=\"m_-6811978937476290452gmail-p1\"><span class=\"m_-6811978937476290452gmail-s1\">La technique de Mourou et Strickland est connue sous le nom d\u2019amplification d\u2019impulsions par compression, CPA. Prenez une impulsion laser courte, \u00e9tirez-la \u00e0 temps, amplifiez-la et resserrez-la. Lorsqu\u2019une impulsion est \u00e9tir\u00e9e dans le temps, sa puissance maximale est beaucoup plus faible, ce qui permet de l\u2019amplifier sans endommager l\u2019amplificateur. L\u2019impulsion est alors comprim\u00e9e dans le temps, ce qui signifie que plus de lumi\u00e8re est emball\u00e9e dans une petite zone de l\u2019espace \u2013 et l\u2019intensit\u00e9 de l\u2019impulsion augmente alors consid\u00e9rablement.<br \/>\n<\/span><span class=\"m_-6811978937476290452gmail-s1\">La technique CPA invent\u00e9e par Strickland et Mourou est devenue la norme pour tous les lasers \u00e0 haute intensit\u00e9 ult\u00e9rieurs et une passerelle vers des domaines et des applications enti\u00e8rement nouveaux en physique, en chimie et en m\u00e9decine. Les impulsions laser les plus courtes et les plus intenses peuvent d\u00e9sormais \u00eatre cr\u00e9\u00e9es en laboratoire.<br \/>\n<\/span><span class=\"m_-6811978937476290452gmail-s1\">Quant \u00e0 Arthur Ashkin, il a \u00e9t\u00e9 r\u00e9compens\u00e9 \u00abpour les pinces optiques et leur application aux syst\u00e8mes biologiques\u00bb.<\/span><\/p>\n<p style=\"text-align: right\"><em>(Source : Pouvoirs d&rsquo;Afrique)<\/em><\/p>\n<div class=\"mom-social-share ss-horizontal border-box\">\n<div class=\"ss-icon facebook\"><\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>G\u00e9rard Mourou, Donna Strickland et Arthur Ashkin ont re\u00e7u le prix Nobel de physique pour voir r\u00e9volutionn\u00e9 la technologie du laser. La technique de Mourou et Strickland est connue sous&hellip;<\/p>\n","protected":false},"author":60,"featured_media":129093,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-129092","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Prix Nobel : Un trio d\u2019as en physiques - R\u00e9alit\u00e9s Magazine<\/title>\n<meta name=\"description\" content=\"G\u00e9rard Mourou, Donna Strickland et Arthur Ashkin ont re\u00e7u le prix Nobel de physique pour voir r\u00e9volutionn\u00e9 la technologie du laser. 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