{"id":231690,"date":"2026-02-20T05:23:49","date_gmt":"2026-02-20T11:23:49","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2026\/02\/terahertz-spectroscopy-finds-nitrogen-can-lengthen-gaas-like-lo-phonon-decay"},"modified":"2026-02-20T05:23:49","modified_gmt":"2026-02-20T11:23:49","slug":"terahertz-spectroscopy-finds-nitrogen-can-lengthen-gaas-like-lo-phonon-decay","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2026\/02\/terahertz-spectroscopy-finds-nitrogen-can-lengthen-gaas-like-lo-phonon-decay","title":{"rendered":"Terahertz spectroscopy finds nitrogen can lengthen GaAs-like LO phonon decay"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/terahertz-spectroscopy-finds-nitrogen-can-lengthen-gaas-like-lo-phonon-decay.jpg\"><\/a><\/p>\n<p>An Osaka Metropolitan University-led research team investigated the decay time of coherent longitudinal optical (LO) phonons both in a GaAs<sub>1\u2212x <\/sub>N<sub>x<\/sub> epilayer and in a GaAs single crystal to clarify the effects of dilute nitridation.<\/p>\n<p>The team observed in terahertz time-domain spectroscopy that the terahertz electromagnetic waves, which are emitted from the coherent GaAs-like LO phonons, have a relatively long decay time in a GaAs<sub>1\u2212x <\/sub>N<sub>x<\/sub> epilayer in comparison with the terahertz waves from the coherent GaAs LO phonons in a semi-insulating GaAs single crystal.<\/p>\n<p>This implies that alloy effects (mixed crystal effects) on the phonon Raman band broadening, which have a possibility of leading to the short decay time, hardly govern the decay time even in the present GaAs<sub>1\u2212x <\/sub>N<sub>x<\/sub> epilayer sample.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>An Osaka Metropolitan University-led research team investigated the decay time of coherent longitudinal optical (LO) phonons both in a GaAs1\u2212x Nx epilayer and in a GaAs single crystal to clarify the effects of dilute nitridation. The team observed in terahertz time-domain spectroscopy that the terahertz electromagnetic waves, which are emitted from the coherent GaAs-like LO [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"class_list":["post-231690","post","type-post","status-publish","format-standard","hentry","category-futurism"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/231690","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=231690"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/231690\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=231690"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=231690"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=231690"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}