{"id":361301,"date":"2024-04-09T11:24:07","date_gmt":"2024-04-09T11:24:07","guid":{"rendered":"\/forum\/forums\/topic\/simulation-of-transient-heat-using-pulsed-laser-power\/"},"modified":"2024-04-09T11:24:07","modified_gmt":"2024-04-09T11:24:07","slug":"simulation-of-transient-heat-using-pulsed-laser-power","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/simulation-of-transient-heat-using-pulsed-laser-power\/","title":{"rendered":"Simulation of transient heat using pulsed laser power"},"content":{"rendered":"<div>Hello everyone,<\/div>\n<div>&nbsp;<\/div>\n<div>\n<div>To observe the photothermal heating and cooling on a material resulting from a pulsed laser source on Lumerical.<\/div>\n<div>I combine the FDTD and HEAT solvers, while using the FDTD solver to determine the absorbed power(Pabs) (using the Pabs adv analysis group)&nbsp; by this material (except that the laser source is not pulsed; i&#8217;m using a fiber with a power source), i have been able to plot the power absorbed and save it as .mat file.<\/div>\n<div>&nbsp;<\/div>\n<div>After, in the HEAT solver, I load the .mat file to see the temperature distribution on my material.&nbsp;<\/div>\n<div>&nbsp;<\/div>\n<div>I&#8217;ve tried using the source shutter parameters in the Heat transient window to define a pulse, but I can&#8217;t find any difference in temperature distribution when I vary the pulse duration between 100fS and 1&micro;S (whereas in the measurements, pulse duration has a big impact on temperature distribution).&nbsp;<\/div>\n<div>I don&#8217;t know how to proceed, as I don&#8217;t want to define my own transient temperature\/power boundary conditions, because in my case the temperature distribution is not uniform over my material, which is the case in this type of simulation.<\/div>\n<\/div>\n<div>&nbsp;<\/div>\n<div>Any help or advice is greatly appreciated!<\/div>\n<div>Thanks in advance<\/div>\n","protected":false},"template":"","class_list":["post-361301","topic","type-topic","status-closed","hentry","topic-tag-fdtd","topic-tag-Heatsolver-1","topic-tag-heat-transfer","topic-tag-photothermalheatgeneration-1","topic-tag-poweranalysis-1","topic-tag-transient-thermal"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["303875","2592"],"_bbp_author_ip":["23.206.193.146"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["701"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["361301"],"_bbp_forum_id":["27833"],"_bbp_engagement":["2592","303875"],"_bbp_voice_count":["2"],"_bbp_reply_count":["3"],"_bbp_last_reply_id":["361764"],"_bbp_last_active_id":["361764"],"_bbp_last_active_time":["2024-04-11 15:11:11"]},"test":"ayoub-naouicea-fr"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/361301","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\/361301\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=361301"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}