{"id":352551,"date":"2024-02-20T13:32:59","date_gmt":"2024-02-20T13:32:59","guid":{"rendered":"\/forum\/forums\/topic\/charge-optical-generation-pattern-not-maintained\/"},"modified":"2024-02-22T17:29:33","modified_gmt":"2024-02-22T17:29:33","slug":"charge-optical-generation-pattern-not-maintained","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/charge-optical-generation-pattern-not-maintained\/","title":{"rendered":"CHARGE optical generation pattern not maintained"},"content":{"rendered":"

I’m simulating a Photonic crystal in FDTD, where light should form a pattern similar to a grating (show in figure). I import a calculated optical generation into CHARGE. However, when I try simulate the carrier generation in CHARGE, I don’t see the grating formation. Instead, carriers seem to be smoohted across the entire material instead of forming a grating. How can I ensure a grating is formed in CHARGE?<\/p>\n

My simulation is with GaAs transient isothermal, 1000fs max steps (200ps steps) for 10ps simulation time with electrical boundary condition transient. Optical generation is on for only 100fs. I removed all recombination from the GaAs electrical material.<\/p>\n

Optical generation:<\/p>\n

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initial E field:<\/p>\n

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initial carrier generation (bottom is clipped through the middle, the top one is the volume plot showing the surface):<\/p>\n

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 <\/p>\n","protected":false},"template":"","class_list":["post-352551","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["296963"],"_bbp_author_ip":["23.206.193.154"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["98"],"_bbp_topic_status":["answered"],"_edit_lock":["1708436714:237201"],"_bbp_topic_id":["352551"],"_bbp_forum_id":["27833"],"_bbp_engagement":["296963"],"_bbp_voice_count":["1"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["353226"],"_bbp_last_active_id":["353226"],"_bbp_last_active_time":["2024-02-22 17:30:55"]},"test":"j-lopez-leyvastudent-tue-nl"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/352551","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\/352551\/revisions"}],"predecessor-version":[{"id":352562,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/352551\/revisions\/352562"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=352551"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}