{"id":320621,"date":"2023-12-03T19:58:16","date_gmt":"2023-12-03T19:58:16","guid":{"rendered":"\/forum\/forums\/topic\/question-about-simulating-saturable-absorption-setting-imaginary-part-of-chi3\/"},"modified":"2023-12-03T20:03:09","modified_gmt":"2023-12-03T20:03:09","slug":"question-about-simulating-saturable-absorption-setting-imaginary-part-of-chi3","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/question-about-simulating-saturable-absorption-setting-imaginary-part-of-chi3\/","title":{"rendered":"Question About Simulating Saturable Absorption  (Setting imaginary part of Chi3)"},"content":{"rendered":"<p><span style=\"font-size: 14pt\">Dear Lumerical Community,<\/span><\/p>\n<p><span style=\"font-size: 14pt\">I&#8217;m simulating metal&#8217;s saturable absorption in Lumerical FDTD and need to define the imaginary part of Chi3. The existing models (eg. Chi2\\Chi3, Raman Kerr) seem to allow only for the real part. Any advice on how to do this?<\/span><\/p>\n<p><span style=\"font-size: 14pt\">Thanks!<\/span><\/p>\n","protected":false},"template":"","class_list":["post-320621","topic","type-topic","status-closed","hentry","topic-tag-absorption-1","topic-tag-harmonic","topic-tag-material-nonlinearity-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["46344","2796"],"_bbp_author_ip":["168.143.243.24"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["347"],"_bbp_topic_status":["unanswered"],"_edit_lock":["1701633839:245482"],"_bbp_status":["publish"],"_bbp_topic_id":["320621"],"_bbp_forum_id":["27833"],"_bbp_engagement":["2796","46344"],"_bbp_voice_count":["2"],"_bbp_reply_count":["4"],"_bbp_last_reply_id":["321543"],"_bbp_last_active_id":["321543"],"_bbp_last_active_time":["2023-12-04 12:43:42"]},"test":"linzhi-yutuni-fi"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/320621","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/320621\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=320621"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}