{"id":361773,"date":"2024-04-11T15:44:40","date_gmt":"2024-04-11T15:44:40","guid":{"rendered":"\/forum\/forums\/reply\/361773\/"},"modified":"2024-04-11T15:44:40","modified_gmt":"2024-04-11T15:44:40","slug":"361773","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/361773\/","title":{"rendered":"Reply To: Tilted SWG"},"content":{"rendered":"<p>&lt;p&gt;This is a more theoretical question other than simulation, since you need to know the calculation method. From literature, you may simply use the average of the neff from two grating tooth, or simulate the band structure and extract the effective index, or from resonance to get the equivalent refractive index by matching the optical length difference (tough!).&nbsp; Please get more information from literature. FDTD gives result of E and H fields, as well as derived power quantities. All other results will need to be extracted from them, by post porcessing, with some math\/physics manipulations.&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-361773","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=\"This is a more theoretical question other than simulation, since you need to know the calculation method. From literature, you may simply use the average of the neff from two grating tooth, or simulate the band structure and extract the effective index, or from resonance to get the equivalent refractive index by matching the optical\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/361773\/\" \/>\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: Tilted SWG | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"This is a more theoretical question other than simulation, since you need to know the calculation method. From literature, you may simply use the average of the neff from two grating tooth, or simulate the band structure and extract the effective index, or from resonance to get the equivalent refractive index by matching the optical\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/361773\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-04-11T15:44:40+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-04-11T15:44:40+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: Tilted SWG | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"This is a more theoretical question other than simulation, since you need to know the calculation method. From literature, you may simply use the average of the neff from two grating tooth, or simulate the band structure and extract the effective index, or from resonance to get the equivalent refractive index by matching the optical\" \/>\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\\\/361773\\\/#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\\\/361773\\\/#listItem\",\"name\":\"Reply To: Tilted SWG\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/361773\\\/#listItem\",\"position\":2,\"name\":\"Reply To: Tilted SWG\",\"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\\\/361773\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/361773\\\/\",\"name\":\"Reply To: Tilted SWG | Ansys Learning Forum\",\"description\":\"This is a more theoretical question other than simulation, since you need to know the calculation method. From literature, you may simply use the average of the neff from two grating tooth, or simulate the band structure and extract the effective index, or from resonance to get the equivalent refractive index by matching the optical\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/361773\\\/#breadcrumblist\"},\"datePublished\":\"2024-04-11T15:44:40+00:00\",\"dateModified\":\"2024-04-11T15:44:40+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\"}}]}\n\t\t<\/script>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"Reply To: Tilted SWG | Ansys Learning Forum","description":"This is a more theoretical question other than simulation, since you need to know the calculation method. From literature, you may simply use the average of the neff from two grating tooth, or simulate the band structure and extract the effective index, or from resonance to get the equivalent refractive index by matching the optical","canonical_url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/361773\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/361773\/#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\/361773\/#listItem","name":"Reply To: Tilted SWG"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/361773\/#listItem","position":2,"name":"Reply To: Tilted SWG","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\/361773\/#webpage","url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/361773\/","name":"Reply To: Tilted SWG | Ansys Learning Forum","description":"This is a more theoretical question other than simulation, since you need to know the calculation method. From literature, you may simply use the average of the neff from two grating tooth, or simulate the band structure and extract the effective index, or from resonance to get the equivalent refractive index by matching the optical","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/361773\/#breadcrumblist"},"datePublished":"2024-04-11T15:44:40+00:00","dateModified":"2024-04-11T15:44:40+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: Tilted SWG | Ansys Learning Forum","og:description":"This is a more theoretical question other than simulation, since you need to know the calculation method. From literature, you may simply use the average of the neff from two grating tooth, or simulate the band structure and extract the effective index, or from resonance to get the equivalent refractive index by matching the optical","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/361773\/","article:published_time":"2024-04-11T15:44:40+00:00","article:modified_time":"2024-04-11T15:44:40+00:00","twitter:card":"summary_large_image","twitter:title":"Reply To: Tilted SWG | Ansys Learning Forum","twitter:description":"This is a more theoretical question other than simulation, since you need to know the calculation method. From literature, you may simply use the average of the neff from two grating tooth, or simulate the band structure and extract the effective index, or from resonance to get the equivalent refractive index by matching the optical"},"aioseo_meta_data":{"post_id":"361773","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"content","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":true,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"limit_modified_date":false,"created":"2024-10-28 16:49:08","updated":"2026-08-12 07:15:45","ai":null,"breadcrumb_settings":null,"seo_analyzer_scan_date":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tReply To: Tilted SWG\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/innovationspace.ansys.com\/forum"},{"label":"Reply To: Tilted SWG","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/361773\/"}],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/361773","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\/361773\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=361773"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}