{"id":366465,"date":"2024-05-10T18:28:05","date_gmt":"2024-05-10T18:28:05","guid":{"rendered":"\/forum\/forums\/reply\/366465\/"},"modified":"2024-05-10T18:28:05","modified_gmt":"2024-05-10T18:28:05","slug":"366465","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/366465\/","title":{"rendered":"Reply To: Cinvergence of RCWA simulations"},"content":{"rendered":"<p>&lt;p&gt;Hello,&lt;\/p&gt;&lt;p&gt;I would also like to provide further information regarding convergence tests. Previoulsy I tried to simulate a high-Q mode supported by the structure. Now, I look into a lower-Q mode supported by the structure, and I have been able to reach the convergence conditions for the RCWA simulations. For this lower-Q mode k=1600 and k=2000 yield identical results. However, these do not match the converged results of the FDTD simulations (see attached images). Is it possible that this is the best achievebale matching between RCWA and FDTD and it is not possible to improve the result further?&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/10-05-2024-1715365673-mceclip2.png\" \/>&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/10-05-2024-1715365653-mceclip1.png\" \/>&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-366465","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hello,I would also like to provide further information regarding convergence tests. Previoulsy I tried to simulate a high-Q mode supported by the structure. Now, I look into a lower-Q mode supported by the structure, and I have been able to reach the convergence conditions for the RCWA simulations. For this lower-Q mode k=1600 and k=2000\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/366465\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Ansys Learning Forum | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Reply To: Cinvergence of RCWA simulations | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Hello,I would also like to provide further information regarding convergence tests. Previoulsy I tried to simulate a high-Q mode supported by the structure. Now, I look into a lower-Q mode supported by the structure, and I have been able to reach the convergence conditions for the RCWA simulations. For this lower-Q mode k=1600 and k=2000\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/366465\/\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/10-05-2024-1715365673-mceclip2.png\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/10-05-2024-1715365673-mceclip2.png\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-05-10T18:28:05+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-05-10T18:28:05+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: Cinvergence of RCWA simulations | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Hello,I would also like to provide further information regarding convergence tests. Previoulsy I tried to simulate a high-Q mode supported by the structure. Now, I look into a lower-Q mode supported by the structure, and I have been able to reach the convergence conditions for the RCWA simulations. For this lower-Q mode k=1600 and k=2000\" \/>\n\t\t<meta name=\"twitter:image\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/10-05-2024-1715365673-mceclip2.png\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/366465\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/366465\\\/#listItem\",\"name\":\"Reply To: Cinvergence of RCWA simulations\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/366465\\\/#listItem\",\"position\":2,\"name\":\"Reply To: Cinvergence of RCWA simulations\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/366465\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/366465\\\/\",\"name\":\"Reply To: Cinvergence of RCWA simulations | Ansys Learning Forum\",\"description\":\"Hello,I would also like to provide further information regarding convergence tests. Previoulsy I tried to simulate a high-Q mode supported by the structure. Now, I look into a lower-Q mode supported by the structure, and I have been able to reach the convergence conditions for the RCWA simulations. 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Previoulsy I tried to simulate a high-Q mode supported by the structure. Now, I look into a lower-Q mode supported by the structure, and I have been able to reach the convergence conditions for the RCWA simulations. 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Previoulsy I tried to simulate a high-Q mode supported by the structure. Now, I look into a lower-Q mode supported by the structure, and I have been able to reach the convergence conditions for the RCWA simulations. For this lower-Q mode k=1600 and k=2000","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/366465\/#breadcrumblist"},"datePublished":"2024-05-10T18:28:05+00:00","dateModified":"2024-05-10T18:28:05+00:00"},{"@type":"WebSite","@id":"https:\/\/innovationspace.ansys.com\/forum\/#website","url":"https:\/\/innovationspace.ansys.com\/forum\/","name":"Ansys Learning Forum","description":"Ansys Innovation Space","inLanguage":"en-US","publisher":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#organization"}}]},"og:locale":"en_US","og:site_name":"Ansys Learning Forum | Ansys Innovation Space","og:type":"article","og:title":"Reply To: Cinvergence of RCWA simulations | Ansys Learning Forum","og:description":"Hello,I would also like to provide further information regarding convergence tests. Previoulsy I tried to simulate a high-Q mode supported by the structure. Now, I look into a lower-Q mode supported by the structure, and I have been able to reach the convergence conditions for the RCWA simulations. For this lower-Q mode k=1600 and k=2000","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/366465\/","og:image":"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/10-05-2024-1715365673-mceclip2.png","og:image:secure_url":"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/10-05-2024-1715365673-mceclip2.png","article:published_time":"2024-05-10T18:28:05+00:00","article:modified_time":"2024-05-10T18:28:05+00:00","twitter:card":"summary_large_image","twitter:title":"Reply To: Cinvergence of RCWA simulations | Ansys Learning Forum","twitter:description":"Hello,I would also like to provide further information regarding convergence tests. Previoulsy I tried to simulate a high-Q mode supported by the structure. Now, I look into a lower-Q mode supported by the structure, and I have been able to reach the convergence conditions for the RCWA simulations. 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