{"id":382069,"date":"2024-09-09T23:41:06","date_gmt":"2024-09-09T23:41:06","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/calculating-heat-generation-profile-in-fdtd-using-narrow-band-cw-sources\/"},"modified":"2024-09-09T23:42:05","modified_gmt":"2024-09-09T23:42:05","slug":"calculating-heat-generation-profile-in-fdtd-using-narrow-band-cw-sources","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/calculating-heat-generation-profile-in-fdtd-using-narrow-band-cw-sources\/","title":{"rendered":"Calculating heat generation profile in FDTD using narrow band CW sources"},"content":{"rendered":"<p>&lt;p&gt;&lt;p&gt;Hello. I am working on designing an light absorbing photonic structure which can be used for thermal energy harvesting and used in application like photo thermal therapy. Now I am trying to simulate the light matter interaction using FDTD and use the thermal generation profile in Heat module for evaluating the thermal performance of the photonic structure.&lt;br&gt;&lt;br&gt;I have worked with the solar generation analysis group and used its thermal generation functionality to observe the effect heat generation in solar cell J-V characteristics. For my current application, I need similar thermal generation capability from FDTD module, but the problem lies with the nature of the source. My light source in the application is LASER, but solar generation object uses an AM 1.5 solar spectra to calculate its heat generation profile.&nbsp;&lt;br&gt;&lt;br&gt;I tried to use the CW generation analysis group, but that also doesn&#8217;t support heat generation. Moreover, though the calculation in solar generation and CW generation object seems similar, there is a conflict in the units of source intensity for both analysis codes.&nbsp;&lt;br&gt;&lt;br&gt;The solar power spectrum has the units of Watts\/m^2\/nm while the source intensity of CW generation rate is calculated using Watts\/m^2. As a result, I am facing a great problem in generating the heat profile from the FDTD.&nbsp;&lt;br&gt;&lt;br&gt;Any suggestion will be appriciated.&lt;\/p&gt;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-382069","topic","type-topic","status-publish","hentry","topic-tag-3DFDTD-1","topic-tag-LumericalFDTD-1","topic-tag-LumericalHEAT-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["101114","2592"],"_bbp_author_ip":["103.94.134.112"],"_btv_view_count":["257"],"_bbp_topic_status":["unanswered"],"_edit_last":["101114"],"_bbp_revision_log":["a:1:{i:382070;a:2:{s:6:\"author\";i:101114;s:6:\"reason\";s:0:\"\";}}"],"_edit_lock":["1725993424:101114"],"_bbp_topic_id":["382069"],"_bbp_forum_id":["27833"],"_bbp_engagement":["2592","101114"],"_bbp_voice_count":["2"],"_bbp_reply_count":["8"],"_bbp_last_reply_id":["389314"],"_bbp_last_active_id":["389314"],"_bbp_last_active_time":["2024-10-11 18:30:45"]},"test":"9f34c5df3cb644447b3cefd5e1c2456962b73779"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/382069","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":1,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/382069\/revisions"}],"predecessor-version":[{"id":382070,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/382069\/revisions\/382070"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=382069"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}