{"id":164570,"date":"2021-12-04T13:48:02","date_gmt":"2021-12-04T13:48:02","guid":{"rendered":"\/forum\/forums\/topic\/fdtd-topologyoptimization2d-in-binary-stagefom-rapid-growth\/"},"modified":"2021-12-08T17:11:26","modified_gmt":"2021-12-08T17:11:26","slug":"fdtd-topologyoptimization2d-in-binary-stagefom-rapid-growth","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/fdtd-topologyoptimization2d-in-binary-stagefom-rapid-growth\/","title":{"rendered":"FDTD TopologyOptimization2D in binary stage,FOM Rapid growth"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>Hi,<\/p>\n<p>I&#039;m using lumopt to inverse design a 1X3 WDM, Imitate the official example &ldquo;CWDM_splitter_1310_4ch_2D_TE_topology&rdquo;\uff0cthe 1X4 WDM. <\/p>\n<p>But I encountered some problems during the binarization stage\uff0c like the following two picture. Binarization is too much, resulting in great performance degradation. And the next optimization can&#039;t make it up\uff0c So that the result is poor performance.<\/p>\n<p>Is it possible that my size is not enough\uff1f it&#039;s 6umx4um<\/p>\n<p>Is there any way to improve it\uff1f thank you very much\uff01\uff01<\/p>\n<div class=\"embedExternal embedImage\">\n<div class=\"embedExternal-content\">\n<a class=\"embedImage-link\" href=\"\/forum\/wp-content\/uploads\/forum-uploads\/093\/E4ZF7UCH2UPR.png\" rel=\"nofollow noopener\" target=\"_blank\"><br \/>\n<img decoding=\"async\" class=\"embedImage-img\" src=\"\/forum\/wp-content\/uploads\/forum-uploads\/093\/E4ZF7UCH2UPR.png\" alt=\"iter-696.png\" \/><br \/>\n<\/a><\/p>\n","protected":false},"template":"","class_list":["post-164570","topic","type-topic","status-closed","hentry","topic-tag-fdtd","topic-tag-inverse-design-2","topic-tag-topology-optimization"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_author_ip":[""],"_bbp_old_reply_author_name_id":["Anonymous"],"_bbp_old_is_reply_anonymous_id":["false"],"_btv_view_count":["275"],"_bbp_likes_count":["0"],"_bbp_subscription":["242276"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["164570"],"_bbp_forum_id":["27833"],"_bbp_engagement":["707","242276"],"_bbp_voice_count":["2"],"_bbp_reply_count":["3"],"_bbp_last_reply_id":["199553"],"_bbp_last_active_id":["199553"],"_bbp_last_active_time":["2021-12-08 17:11:26"]},"test":"pengzheng97email-swu-edu-cn"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/164570","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\/164570\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=164570"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}