{"id":392325,"date":"2024-10-31T22:53:56","date_gmt":"2024-10-31T22:53:56","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/392325\/"},"modified":"2024-10-31T22:53:56","modified_gmt":"2024-10-31T22:53:56","slug":"392325","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/392325\/","title":{"rendered":"Reply To: Electrostatic simulations of a modulator"},"content":{"rendered":"<p>&lt;p&gt;Regarding the example you mentioned&nbsp; https:\/\/optics.ansys.com\/hc\/en-us\/articles\/360042327854-PIN-Mach-Zehn<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/10\/31-10-2024-1730415141-mceclip0.png\" \/>der-modulator, if I run the file, the electric field distribution is symmetric.&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;However, if I model the silicon pad under the electrodes as a dielectric with the same DC permittivity, the electric field becomes asymmetric<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/10\/31-10-2024-1730415215-mceclip1.png\" \/>&lt;\/p&gt;&lt;p&gt;Why is that the case?&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-392325","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/392325","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/reply"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/392325\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=392325"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}