{"id":655852,"date":"2020-05-25T09:30:03","date_gmt":"2020-05-25T13:30:03","guid":{"rendered":"http:\/\/spaceweekly.com\/?p=655852"},"modified":"2020-05-25T09:30:03","modified_gmt":"2020-05-25T13:30:03","slug":"nanoscale-optical-pulse-limiter-facilitated-by-refractory-metallic-quantum-wells","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=655852","title":{"rendered":"Nanoscale optical pulse limiter facilitated by refractory metallic quantum wells"},"content":{"rendered":"<p>In the past several decades, physicists have conducted deep laboratory investigations into nonlinear optics, plasma physics and quantum science using advanced high-intensity, ultrashort-pulse lasers. Increased use of the technology naturally risked damaging the optical detection systems and therefore they proposed a variety of optical limiting mechanisms and devices. Device miniaturization of such designs while maintaining superior integrability and control can, however, become complex. In a new report, Haoliang Qian and a research team in electrical and computer engineering, materials science, chemistry and the Center for Memory and Recording Research at the University of California, San Diego, U.S., detailed a reflection-mode pulse limiter. They engineered the device using nanoscale refractory films made of aluminum oxide and sandwiched titanium nitride (Al2O3\/TiN\/Al2O3) to build the metallic quantum wells (MQWs). The quantum size effect of the MQW provided large and ultra-fast Kerr-type nonlinearities. Functional multilayers containing these MQWs will find new applications in meta-optics, nanophotonics and nonlinear optics, and the results are now published on Science Advances.&#013;<br \/>\n&#013;<br \/>\n&#013;<br \/>\n Click here for original story, <a href=\"https:\/\/phys.org\/news\/2020-05-nanoscale-optical-pulse-limiter-refractory.html\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Nanoscale optical pulse limiter facilitated by refractory metallic quantum wells<\/a>&#013;<br \/>\n&#013;<br \/>\n&#013;<br \/>\nSource: Phys.org&#013;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the past several decades, physicists have conducted deep laboratory investigations into nonlinear optics, plasma physics and quantum science using advanced high-intensity, ultrashort-pulse lasers. Increased use of the technology naturally&hellip; <\/p>\n","protected":false},"author":1,"featured_media":615444,"comment_status":"false","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41],"tags":[],"class_list":["post-655852","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-phys-org"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/655852","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=655852"}],"version-history":[{"count":0,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/655852\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/615444"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=655852"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=655852"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=655852"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}