{"id":166,"date":"2018-12-04T19:46:29","date_gmt":"2018-12-04T19:46:29","guid":{"rendered":"http:\/\/creolcms.smca.ucf.edu\/qcl\/?p=166"},"modified":"2018-12-14T15:44:11","modified_gmt":"2018-12-14T15:44:11","slug":"5-6-%ce%bcm-quantum-cascade-lasers-based-on-a-two-material-active-region-composition-with-a-room-temperature-wall-plug-efficiency-exceeding-28","status":"publish","type":"post","link":"https:\/\/www.creol.ucf.edu\/qcl\/5-6-%ce%bcm-quantum-cascade-lasers-based-on-a-two-material-active-region-composition-with-a-room-temperature-wall-plug-efficiency-exceeding-28\/","title":{"rendered":"5.6 \u03bcm quantum cascade lasers based on a two-material active region composition with a room temperature wall-plug efficiency exceeding 28%"},"content":{"rendered":"<p><a href=\"https:\/\/aip.scitation.org\/doi\/full\/10.1063\/1.4963233\" target=\"_blank\" rel=\"noopener\">5.6 \u03bcm quantum cascade lasers based on the Al0.78In0.22As\/In0.69Ga0.31As active region composition with the measured pulsed room temperature wall plug efficiency of 28.3% are reported.<\/a> Injection efficiency for the upper laser level of 75% was measured for the design by testing devices with variable cavity lengths. A threshold current density of 1.7 kA\/cm2 and a slope efficiency of 4.9 W\/A were measured for uncoated 3.15 mm \u00d7 9 \u03bcm lasers. Threshold current density and slope efficiency dependence on temperature in the range from 288 K to 348 K for the structure can be described by characteristic temperatures T0 ~140 K and T1 ~710 K, respectively.<\/p>\n","protected":false},"excerpt":{"rendered":"5.6 \u03bcm quantum cascade lasers based on the Al0.78In0.22As\/In0.69Ga0.31As active region composition with the measured pulsed room temperature wall plug efficiency of 28.3% are reported. Injection efficiency for the upper laser level of 75% was measured for the design by testing devices with variable cavity lengths. A threshold current density of 1.7 kA\/cm2 and a [&hellip;]","protected":false},"author":26,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[5],"tags":[],"class_list":["post-166","post","type-post","status-publish","format-standard","hentry","category-publications"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.creol.ucf.edu\/qcl\/wp-json\/wp\/v2\/posts\/166","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.creol.ucf.edu\/qcl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.creol.ucf.edu\/qcl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.creol.ucf.edu\/qcl\/wp-json\/wp\/v2\/users\/26"}],"replies":[{"embeddable":true,"href":"https:\/\/www.creol.ucf.edu\/qcl\/wp-json\/wp\/v2\/comments?post=166"}],"version-history":[{"count":3,"href":"https:\/\/www.creol.ucf.edu\/qcl\/wp-json\/wp\/v2\/posts\/166\/revisions"}],"predecessor-version":[{"id":419,"href":"https:\/\/www.creol.ucf.edu\/qcl\/wp-json\/wp\/v2\/posts\/166\/revisions\/419"}],"wp:attachment":[{"href":"https:\/\/www.creol.ucf.edu\/qcl\/wp-json\/wp\/v2\/media?parent=166"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.creol.ucf.edu\/qcl\/wp-json\/wp\/v2\/categories?post=166"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.creol.ucf.edu\/qcl\/wp-json\/wp\/v2\/tags?post=166"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}