{"id":34058,"date":"2026-03-05T20:42:06","date_gmt":"2026-03-05T20:42:06","guid":{"rendered":"https:\/\/www.europesays.com\/ch-fr\/34058\/"},"modified":"2026-03-05T20:42:06","modified_gmt":"2026-03-05T20:42:06","slug":"le-laser-a-rayons-x-ce-nouveau-couteau-suisse-pour-etudier-lintimite-de-la-matiere","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/ch-fr\/34058\/","title":{"rendered":"Le laser \u00e0 rayons X, ce nouveau couteau suisse pour \u00e9tudier l\u2019intimit\u00e9 de la mati\u00e8re"},"content":{"rendered":"<p>    R\u00e9sum\u00e9 en 20 secondes<\/p>\n<p>        En savoir plus sur ce type de contenu<\/p>\n<p>Ce r\u00e9sum\u00e9 peut avoir \u00e9t\u00e9 \u00e9crit avec l&rsquo;assistance d\u2019une IA g\u00e9n\u00e9rative. <a href=\"https:\/\/www.letemps.ch\/cyber\/l-usage-de-l-ia-generative-par-les-journalistes-du-temps\" rel=\"nofollow noopener\" target=\"_blank\">En savoir plus<\/a><\/p>\n<p class=\"article__abstract-call-to-action\" data-ariato=\"TrackableElement\" data-trackable-element-type=\"article_abstract_cta\" data-trackable-element-location=\"article_header\" data-trackable-element-id=\"523495\">\n        <a data-event=\"click-&gt;clicked\" href=\"https:\/\/www.letemps.ch\/abonnements\" rel=\"nofollow noopener\" target=\"_blank\">Abonnez-vous<\/a> pour acc\u00e9der au r\u00e9sum\u00e9 en 20 secondes.\n      <\/p>\n<p>C\u2019est une belle prouesse que viennent de r\u00e9aliser des scientifiques suisses et allemands. Le groupe de Georg Knopp, du laboratoire de femtochimie de l\u2019Institut Paul Scherrer (Villigen, AG), a mis en \u0153uvre une m\u00e9thode d\u2019observation de la mati\u00e8re \u00e0 l\u2019\u00e9chelle d\u2019un atome, en combinant plusieurs faisceaux de rayons X. <a href=\"https:\/\/www.nature.com\/articles\/s41586-025-09911-1\" rel=\"nofollow noopener\" target=\"_blank\">Les chercheurs expliquent dans Nature<\/a> comment ils ont pu analyser la mani\u00e8re dont les \u00e9lectrons se d\u00e9placent autour du noyau de leur atome. Une premi\u00e8re dans cette gamme de rayons X.<\/p>\n<p>Nous reviendrons plus loin sur cette exp\u00e9rience, mais il faut d\u2019abord \u00e9voquer son audace: pour \u00e9tudier des atomes de n\u00e9on avec cette lumi\u00e8re, les chercheurs ont d\u00fb viser leur cible avec une pr\u00e9cision stup\u00e9fiante. L\u2019\u00e9quivalent, \u00e0 un kilom\u00e8tre de distance, de trois fl\u00e9chettes en plein mille, \u00e0 quelques nanom\u00e8tres les unes des autres\u2026<\/p>\n","protected":false},"excerpt":{"rendered":"R\u00e9sum\u00e9 en 20 secondes En savoir plus sur ce type de contenu Ce r\u00e9sum\u00e9 peut avoir \u00e9t\u00e9 \u00e9crit&hellip;\n","protected":false},"author":2,"featured_media":34059,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[2827,174,61,57,59,58,23,60,62],"class_list":{"0":"post-34058","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-sciences-et-technologies","8":"tag-physique","9":"tag-premium","10":"tag-science","11":"tag-science-and-technology","12":"tag-sciences","13":"tag-sciences-et-technologies","14":"tag-suisse","15":"tag-technologies","16":"tag-technology"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@ch_fr\/116178514506006714","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/ch-fr\/wp-json\/wp\/v2\/posts\/34058","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/ch-fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/ch-fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ch-fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ch-fr\/wp-json\/wp\/v2\/comments?post=34058"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/ch-fr\/wp-json\/wp\/v2\/posts\/34058\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ch-fr\/wp-json\/wp\/v2\/media\/34059"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/ch-fr\/wp-json\/wp\/v2\/media?parent=34058"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/ch-fr\/wp-json\/wp\/v2\/categories?post=34058"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/ch-fr\/wp-json\/wp\/v2\/tags?post=34058"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}