


{"id":396022,"date":"2024-12-03T00:46:38","date_gmt":"2024-12-03T00:46:38","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/396022\/"},"modified":"2024-12-03T00:46:38","modified_gmt":"2024-12-03T00:46:38","slug":"396022","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/396022\/","title":{"rendered":"Reply To: Metasurface FDTD:reflectivity and transmittance is greater than 1 and big noise"},"content":{"rendered":"<p>&lt;p&gt;&lt;span style=&#8221;font-size: 12pt;&#8221;&gt;Dear Subscriber,&lt;\/span&gt;&lt;\/p&gt;&lt;p&gt;&lt;span style=&#8221;font-size: 12pt;&#8221;&gt;Your results resemble an undersampled Fabry-Perot cavity with noise. Here are some recommendations to improve your simulation:&lt;\/span&gt;&lt;\/p&gt;<\/p>\n<ol>&lt;li style=&#8221;font-size: 12pt;&#8221;&gt;&lt;span style=&#8221;font-size: 12pt;&#8221;&gt;Increase the number of frequency points in your monitor to better resolve oscillations.&lt;\/span&gt;<\/li>\n<p>&lt;li style=&#8221;font-size: 12pt;&#8221;&gt;&lt;span style=&#8221;font-size: 12pt;&#8221;&gt;Refer to the article <a href=\"https:\/\/optics.ansys.com\/hc\/en-us\/articles\/12614264530323-Transmission-Results-Greater-Than-One\">Transmission Results Greater Than One &ndash; Ansys Optics<\/a>. Increase the simulation time, ensure the simulation status equals 2 (indicating it ended by reaching the autoshutoff level), and verify that reflections from PML layers are negligible.&lt;\/span&gt;<\/li>\n<p>&lt;li style=&#8221;font-size: 12pt;&#8221;&gt;&lt;span style=&#8221;font-size: 12pt;&#8221;&gt;Perform convergence testing.&nbsp;Follow the <a href=\"https:\/\/optics.ansys.com\/hc\/en-us\/articles\/360034915833-Convergence-testing-process-for-FDTD-simulations\">Convergence testing process for FDTD simulations &ndash; Ansys Optics<\/a>&nbsp;to minimize numerical errors and achieve reliable results.&lt;\/span&gt;<\/li>\n<\/ol>\n<p>&lt;p&gt;&lt;span style=&#8221;font-size: 12pt;&#8221;&gt;Best regards,&lt;\/span&gt;&lt;br&gt;&lt;span style=&#8221;font-size: 12pt;&#8221;&gt;Kirill&lt;\/span&gt;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-396022","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/396022","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\/396022\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=396022"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}