{"id":195,"date":"2022-06-14T07:26:49","date_gmt":"2022-06-14T07:26:49","guid":{"rendered":"http:\/\/www.thz.lt\/?p=195"},"modified":"2023-02-14T15:19:29","modified_gmt":"2023-02-14T15:19:29","slug":"dissipative-parametric-gain-in-a-gaas-algaas-superlattice-in-physical-review-letters","status":"publish","type":"post","link":"https:\/\/www.thz.lt\/?p=195","title":{"rendered":"Dissipative Parametric Gain in a GaAs\/AlGaAs Superlattice in PHYSICAL REVIEW LETTERS"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">New study is published in the journal &#8220;Physical Review Letters&#8221; from American Physical Society in the field of parametric generation of EM oscillations in GHz-THz frequency range. The work reports on the first observation of the dissipative parametric generation in a subcritically doped GaAs\/AlGaAs superlattice (SL) subjected to a DC bias and a microwave pump. It enforces excitation of slow electrostatic waves in the SL that provide a significant enhancement of the gain coefficient.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The findings foresee the development of a miniature solid-state parametric generators of  GHz-THz frequencies operating at room temperature.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"316\" height=\"352\" src=\"http:\/\/www.thz.lt\/wp-content\/uploads\/2022\/06\/parametricgenerationinSL.jpg\" alt=\"\" class=\"wp-image-196\" srcset=\"https:\/\/www.thz.lt\/wp-content\/uploads\/2022\/06\/parametricgenerationinSL.jpg 316w, https:\/\/www.thz.lt\/wp-content\/uploads\/2022\/06\/parametricgenerationinSL-269x300.jpg 269w\" sizes=\"auto, (max-width: 316px) 100vw, 316px\" \/><figcaption>Sketch of the parametric generation in the SL device.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">DOI: <a href=\"https:\/\/journals.aps.org\/prl\/abstract\/10.1103\/PhysRevLett.128.236802\">10.1103\/PhysRevLett.128.236802<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>New study is published in the journal &#8220;Physical Review Letters&#8221; from American Physical Society in the field of parametric generation of EM oscillations in GHz-THz frequency range. The work reports on the first observation of the dissipative parametric generation in a subcritically doped GaAs\/AlGaAs superlattice (SL) subjected to a DC bias and a microwave pump. &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/www.thz.lt\/?p=195\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Dissipative Parametric Gain in a GaAs\/AlGaAs Superlattice in PHYSICAL REVIEW LETTERS&#8221;<\/span><\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,3],"tags":[11],"class_list":["post-195","post","type-post","status-publish","format-standard","hentry","category-news","category-sci-papers","tag-parametric-gain-gaas-algaas-superlattice"],"_links":{"self":[{"href":"https:\/\/www.thz.lt\/index.php?rest_route=\/wp\/v2\/posts\/195","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.thz.lt\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.thz.lt\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.thz.lt\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.thz.lt\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=195"}],"version-history":[{"count":1,"href":"https:\/\/www.thz.lt\/index.php?rest_route=\/wp\/v2\/posts\/195\/revisions"}],"predecessor-version":[{"id":197,"href":"https:\/\/www.thz.lt\/index.php?rest_route=\/wp\/v2\/posts\/195\/revisions\/197"}],"wp:attachment":[{"href":"https:\/\/www.thz.lt\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=195"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thz.lt\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=195"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thz.lt\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=195"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}