{"id":389294,"date":"2024-10-11T15:02:44","date_gmt":"2024-10-11T15:02:44","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/weird-band-structure-in-simulation\/"},"modified":"2024-10-14T16:24:06","modified_gmt":"2024-10-14T16:24:06","slug":"weird-band-structure-in-simulation","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/weird-band-structure-in-simulation\/","title":{"rendered":"Weird band structure in simulation"},"content":{"rendered":"<p>&lt;p&gt;&lt;p&gt;I am running a simulation on a self-defined diamond structure. However, after running the FDTD, I received the band diagram that is different from theory as well as previous works. There is some weird band appeared as well as the position of the gap. I attached the simulation below.&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/10\/11-10-2024-1728658398-mceclip2.png\" \/>-&gt; This is my set-up, and I expect to see something similar to:&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/10\/11-10-2024-1728658546-mceclip3.png\" \/>&lt;\/p&gt;&lt;p&gt;But I received&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/10\/11-10-2024-1728658218-mceclip0.png\" \/>&lt;\/p&gt;&lt;p&gt;I am playing around with simulation area, k-vector but not really finding out what is the hinder reason&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-389294","topic","type-topic","status-publish","hentry","topic-tag-Photoniccrystal-1","topic-tag-bandstructure-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["450336","2592"],"_bbp_author_ip":["2001:4ca0:4103:401:10:153:25:34"],"_btv_view_count":["219"],"_bbp_topic_status":["unanswered"],"_bbp_likes_count":["1"],"_edit_last":["450336"],"_bbp_revision_log":["a:1:{i:389534;a:2:{s:6:\"author\";i:450336;s:6:\"reason\";s:0:\"\";}}"],"_edit_lock":["1728923176:450336"],"_bbp_topic_id":["389294"],"_bbp_forum_id":["27833"],"_bbp_engagement":["2592","450336"],"_bbp_voice_count":["2"],"_bbp_reply_count":["7"],"_bbp_last_reply_id":["389903"],"_bbp_last_active_id":["389903"],"_bbp_last_active_time":["2024-10-16 05:39:44"]},"test":"thanh-nguyencampus-lmu-de"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/389294","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\/389294\/revisions"}],"predecessor-version":[{"id":389534,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/389294\/revisions\/389534"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=389294"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}