{"id":237933,"date":"2026-05-29T02:31:23","date_gmt":"2026-05-29T07:31:23","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2026\/05\/electrical-knob-can-switch-light-on-off-and-tune-intensity-at-the-nanoscale"},"modified":"2026-05-29T02:31:23","modified_gmt":"2026-05-29T07:31:23","slug":"electrical-knob-can-switch-light-on-off-and-tune-intensity-at-the-nanoscale","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2026\/05\/electrical-knob-can-switch-light-on-off-and-tune-intensity-at-the-nanoscale","title":{"rendered":"Electrical \u2018knob\u2019 can switch light on, off and tune intensity at the nanoscale"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/electrical-knob-can-switch-light-on-off-and-tune-intensity-at-the-nanoscale2.jpg\"><\/a><\/p>\n<p>Physicists from Emory University have led work to develop a microscopic, nonlinear light source that can be switched on, off or tuned to a particular intensity by an electrical \u201cknob.\u201d The paper is <a href=\"https:\/\/opg.optica.org\/abstract.cfm?URI=optica-13-3-476\" target=\"_blank\">published<\/a> in the journal <i>Optica<\/i>, and could aid in the design of smaller, more flexible technologies for communications, sensing and quantum computing.<\/p>\n<p>The new method focuses on a type of nonlinear optics known as second harmonic generation (SHG), where two photons of the same frequency interact with a material and combine into a single photon with twice the frequency.<\/p>\n<p>\u201cNobody had previously shown that you can tune second harmonic generation with an electric knob in such a small device,\u201d says Hayk Harutyunyan, senior author of the paper and Emory professor of physics.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Physicists from Emory University have led work to develop a microscopic, nonlinear light source that can be switched on, off or tuned to a particular intensity by an electrical \u201cknob.\u201d The paper is published in the journal Optica, and could aid in the design of smaller, more flexible technologies for communications, sensing and quantum computing. [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1523,4,1617],"tags":[],"class_list":["post-237933","post","type-post","status-publish","format-standard","hentry","category-computing","category-nanotechnology","category-quantum-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/237933","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=237933"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/237933\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=237933"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=237933"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=237933"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}