{"id":866,"date":"2024-07-26T15:50:59","date_gmt":"2024-07-26T19:50:59","guid":{"rendered":"https:\/\/sites.temple.edu\/molecularoptics\/?page_id=866"},"modified":"2024-07-30T15:21:20","modified_gmt":"2024-07-30T19:21:20","slug":"all-optical-spin-switch","status":"publish","type":"page","link":"https:\/\/sites.temple.edu\/molecularoptics\/all-optical-spin-switch\/","title":{"rendered":"All-optical spin switch"},"content":{"rendered":"\n<ul class=\"wp-block-list\">\n<li><em>Control of the valence electron spin polarization through modification of singlet triplet mixing coefficients of pairs of rovibronic levels mixed by the spin-orbit interaction: prospects for an all-optical spin switch.<\/em>\n<ul class=\"wp-block-list\">\n<li>Molecular transitions are governed by the parity of the various states. In addition, only states of the same spin multiplicity combine with each other. Therefore, a transition from one singlet state to another is allowed, while a singlet to triplet transition is forbidden. This selection rule breaks down as the spin-orbit interaction becomes larger, as is the case for heavier atoms and molecules, but is quite strict for lighter molecules. We propose a novel quantum control scheme based on Autler-Townes splitting to create controllable linear combinations of singlet and triplet states, i.e\u00a0<strong>dressed singlet-triplet window states.<\/strong>\u00a0A five level molecular system interacting with three lasers is used to maximize upper level triplet state production by starting with a singlet ground state.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Relevant publications:\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/journals.aps.org\/prl\/abstract\/10.1103\/PhysRevLett.107.163601\">Quantum control of the spin-orbit interaction<\/a> (PRL),<\/li>\n\n\n\n<li><a href=\"https:\/\/journals.aps.org\/pra\/abstract\/10.1103\/PhysRevA.89.061401\">Optical control of collisional population flow between molecular electronic states of different spin multiplicity<\/a> (PRA),<\/li>\n\n\n\n<li><a href=\"https:\/\/www.tandfonline.com\/doi\/full\/10.1080\/09500340.2013.827248\">all-optical spin switch<\/a> (JMO)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":28395,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_themeisle_gutenberg_block_has_review":false,"footnotes":""},"class_list":["post-866","page","type-page","status-publish","hentry"],"acf":[],"featured_image_src":null,"featured_image_src_square":null,"_links":{"self":[{"href":"https:\/\/sites.temple.edu\/molecularoptics\/wp-json\/wp\/v2\/pages\/866","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sites.temple.edu\/molecularoptics\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sites.temple.edu\/molecularoptics\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sites.temple.edu\/molecularoptics\/wp-json\/wp\/v2\/users\/28395"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.temple.edu\/molecularoptics\/wp-json\/wp\/v2\/comments?post=866"}],"version-history":[{"count":7,"href":"https:\/\/sites.temple.edu\/molecularoptics\/wp-json\/wp\/v2\/pages\/866\/revisions"}],"predecessor-version":[{"id":1064,"href":"https:\/\/sites.temple.edu\/molecularoptics\/wp-json\/wp\/v2\/pages\/866\/revisions\/1064"}],"wp:attachment":[{"href":"https:\/\/sites.temple.edu\/molecularoptics\/wp-json\/wp\/v2\/media?parent=866"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}