{"id":355764,"date":"2024-03-06T21:18:02","date_gmt":"2024-03-06T21:18:02","guid":{"rendered":"\/forum\/forums\/topic\/rcwa-results-are-quite-different-from-fdtd\/"},"modified":"2024-03-06T21:18:02","modified_gmt":"2024-03-06T21:18:02","slug":"rcwa-results-are-quite-different-from-fdtd","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/rcwa-results-are-quite-different-from-fdtd\/","title":{"rendered":"RCWA results are quite different from FDTD"},"content":{"rendered":"<p>Hi expert,<\/p>\n<p>I tried to simulate a gold structure using RCWA and FDTD solver from Lumerical, but they gave quite different results.<\/p>\n<p>For RCWA, I have tried to increase the layers of gold up to 50 or increase the number of k vector up to 3000.<\/p>\n<p>Here are the results:<\/p>\n<p>RCWA:<\/p>\n<p>Refection:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/03\/06-03-2024-1709759243-mceclip0.png\" width=\"742\" height=\"453\"><\/p>\n<p>&nbsp;<\/p>\n<p>FDTD:<\/p>\n<p>Refection:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/03\/06-03-2024-1709759414-mceclip1.png\" width=\"964\" height=\"780\"><\/p>\n<p>Can anyone give me any suggestions?<\/p>\n<p>Regards,<\/p>\n<p>Guodong<\/p>\n","protected":false},"template":"","class_list":["post-355764","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["69985","33648"],"_bbp_author_ip":["23.206.193.146"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["504"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["355764"],"_bbp_forum_id":["27833"],"_bbp_engagement":["33648","69985"],"_bbp_voice_count":["2"],"_bbp_reply_count":["7"],"_bbp_last_reply_id":["356727"],"_bbp_last_active_id":["356727"],"_bbp_last_active_time":["2024-03-12 20:29:26"]},"test":"guodong-zhuvanderbilt-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/355764","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\/355764\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=355764"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}