{"id":390794,"date":"2024-10-22T09:48:47","date_gmt":"2024-10-22T09:48:47","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/3d-doping-distribution-in-a-non-uniform-width-mrm-in-lumerical-charge\/"},"modified":"2024-10-22T09:48:47","modified_gmt":"2024-10-22T09:48:47","slug":"3d-doping-distribution-in-a-non-uniform-width-mrm-in-lumerical-charge","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/3d-doping-distribution-in-a-non-uniform-width-mrm-in-lumerical-charge\/","title":{"rendered":"3D Doping Distribution in a Non-Uniform Width MRM in Lumerical CHARGE"},"content":{"rendered":"<p>&lt;p&gt;Dear Lumerical Support Team,&lt;\/p&gt;&lt;p&gt;I am designing a ring modulator with a circular outer ring and a custom-shaped inner ring, which results in non-uniform ring width at different angles. When simulating doping and charge distribution, focusing on a 2D cross-section might cause errors due to the non-uniform structure.&lt;\/p&gt;&lt;p&gt;I have reviewed the official examples on your website regarding MRM, but those examples are based on a ring with uniform width and a perfect circular structure. My design, however, differs due to the custom-shaped inner ring and non-uniform width.&lt;\/p&gt;&lt;p&gt;Is it possible to define a 3D non-uniform doping distribution in Lumerical CHARGE and obtain charge distribution across the entire structure under different biases, instead of only simulating in 2D?&lt;\/p&gt;&lt;p&gt;(Below is the ring resonator I designed, where it is clearly visible that the ring&#8217;s width is not uniform.&lt;\/p&gt;&lt;p&gt;I have already completed the design of the MRR using FDTD, and now I just want to modify it into an MRM.)&lt;\/p&gt;&lt;p&gt;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/10\/22-10-2024-1729589033-MRR.png\" alt=\"\" width=\"726\" height=\"331\" \/>&lt;\/p&gt;&lt;p&gt;Thank you for your assistance!&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-390794","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["468705","2592"],"_bbp_author_ip":["218.173.136.41"],"_btv_view_count":["173"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["390794"],"_bbp_forum_id":["27833"],"_bbp_engagement":["2592","468705"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["390912"],"_bbp_last_active_id":["390912"],"_bbp_last_active_time":["2024-10-22 17:48:07"]},"test":"l76124262gs-ncku-edu-tw"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/390794","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\/390794\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=390794"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}