{"id":219567,"date":"2025-08-07T04:28:31","date_gmt":"2025-08-07T09:28:31","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2025\/08\/ultrafast-light-switch-achieved-with-asymmetric-silicon-metasurfaces-in-nanophotonics"},"modified":"2025-08-07T04:28:31","modified_gmt":"2025-08-07T09:28:31","slug":"ultrafast-light-switch-achieved-with-asymmetric-silicon-metasurfaces-in-nanophotonics","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2025\/08\/ultrafast-light-switch-achieved-with-asymmetric-silicon-metasurfaces-in-nanophotonics","title":{"rendered":"Ultrafast light switch achieved with asymmetric silicon metasurfaces in nanophotonics"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/ultrafast-light-switch-achieved-with-asymmetric-silicon-metasurfaces-in-nanophotonics.jpg\"><\/a><\/p>\n<p>In nanophotonics, tiny structures are used to control light at the nanoscale and render it useful for technological applications. A key element here is optical resonators, which trap and amplify light of a certain color (wavelength).<\/p>\n<p>Previous methods of controlling these resonances were more like a dimmer switch: You could weaken the resonance or slightly shift its color. However, genuine on-and-off switching was not possible, as the resonators always remain fundamentally coupled with the light.<\/p>\n<p>A team led by Andreas Tittl, Professor of Experimental Physics at LMU, has now precisely achieved this breakthrough, together with partners from Monash University in Australia. As the researchers <a href=\"https:\/\/www.nature.com\/articles\/s41586-025-09363-7\" target=\"_blank\">report<\/a> in the journal <i>Nature<\/i>, they have developed a new method for controlling the coupling between nanoresonators and light in a targeted manner on ultrafast timescales. In this way, a resonance can be created from nothing within a few picoseconds or made to vanish completely again.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In nanophotonics, tiny structures are used to control light at the nanoscale and render it useful for technological applications. A key element here is optical resonators, which trap and amplify light of a certain color (wavelength). Previous methods of controlling these resonances were more like a dimmer switch: You could weaken the resonance or slightly [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,219],"tags":[],"class_list":["post-219567","post","type-post","status-publish","format-standard","hentry","category-nanotechnology","category-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/219567","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/427"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=219567"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/219567\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=219567"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=219567"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=219567"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}