{"id":317921,"date":"2023-11-16T06:53:23","date_gmt":"2023-11-16T06:53:23","guid":{"rendered":"\/forum\/forums\/topic\/low-absoption-of-silicon-at-850-nm-fdtd\/"},"modified":"2023-11-16T06:53:23","modified_gmt":"2023-11-16T06:53:23","slug":"low-absoption-of-silicon-at-850-nm-fdtd","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/low-absoption-of-silicon-at-850-nm-fdtd\/","title":{"rendered":"low absoption of silicon at 850 nm FDTD"},"content":{"rendered":"<p>Hi,&nbsp;<\/p>\n<p>I built a simple test structure in FDTD consisting of a 4micrometer cube eachside, made of silicon,&nbsp; and applied a plane wave at 850nm through the structure. I noticed that the total absorbtion is about 15% only. Is there something wrong with teh simulation?&nbsp;<\/p>\n<p>Regards.&nbsp;<\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/11\/16-11-2023-1700117594-absorbed.PNG\" alt=\"\"><\/p>\n","protected":false},"template":"","class_list":["post-317921","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["249205","33648"],"_bbp_author_ip":["23.52.43.81"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["216"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["317921"],"_bbp_forum_id":["27833"],"_bbp_engagement":["33648","249205"],"_bbp_voice_count":["2"],"_bbp_reply_count":["3"],"_bbp_last_reply_id":["318921"],"_bbp_last_active_id":["318921"],"_bbp_last_active_time":["2023-11-21 19:46:55"]},"test":"dbenhamadouaus-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/317921","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\/317921\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=317921"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}