{"id":365470,"date":"2024-05-03T18:16:04","date_gmt":"2024-05-03T18:16:04","guid":{"rendered":"\/forum\/forums\/topic\/cinvergence-of-rcwa-simulations\/"},"modified":"2024-05-03T18:16:04","modified_gmt":"2024-05-03T18:16:04","slug":"cinvergence-of-rcwa-simulations","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/cinvergence-of-rcwa-simulations\/","title":{"rendered":"Cinvergence of RCWA simulations"},"content":{"rendered":"<p>Hello,<\/p>\n<p>I am running convergence tests for RCWA simulations and trying to find the optimal value for the k value in the RCWA solver. I simulate a silicon pillar on a silica (SiO2) substrate. The FDTD and RCWA simulation results are similar but do not fully match (I am currently running more FDTD simulations with a finer mesh).<\/p>\n<p>When increasing k value in the RCWA I observe a red shift of the resonance. But when increase the k value from 900 to 1400, I observe a blue shift of the resonance. Based on your experience, is it reasonable to have such high values of k? Should I try increasing k values further and further? Or from your perspective this match is good enough?<\/p>\n<p>&nbsp;<\/p>\n<p>Thanks!<img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/03-05-2024-1714760123-mceclip0.png\"><\/p>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/03-05-2024-1714760150-mceclip1.png\"><\/p>\n","protected":false},"template":"","class_list":["post-365470","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["192317","2592"],"_bbp_author_ip":["23.196.2.137"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["184"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["365470"],"_bbp_forum_id":["27833"],"_bbp_engagement":["2592","192317"],"_bbp_voice_count":["2"],"_bbp_reply_count":["11"],"_bbp_last_reply_id":["367013"],"_bbp_last_active_id":["367013"],"_bbp_last_active_time":["2024-05-16 00:15:24"]},"test":"sokhoyancaltech-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/365470","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\/365470\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=365470"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}