{"id":373532,"date":"2024-07-25T05:38:25","date_gmt":"2024-07-25T05:38:25","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/strange-transmitance-of-aln-straight-waveguide-on-sapphire-substrate\/"},"modified":"2024-07-25T05:38:25","modified_gmt":"2024-07-25T05:38:25","slug":"strange-transmitance-of-aln-straight-waveguide-on-sapphire-substrate","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/strange-transmitance-of-aln-straight-waveguide-on-sapphire-substrate\/","title":{"rendered":"Strange transmitance of AlN straight waveguide on sapphire substrate"},"content":{"rendered":"<p>Hello,<\/p>\n<p>I am trying to simulate a straight waveguide of AlN on sapphire substrate with air as the cladding layer. The center wavelength is 369nm. However, the transmitance shows that when the wavelength is longer than 370nm, the material does not confine the light at all. Attached is the fsp file.<a href=\"https:\/\/drive.google.com\/file\/d\/1jQXW7r5ikhyjovWrGB3gikrjgSoWxzdE\/view?usp=sharing\">https:\/\/drive.google.com\/file\/d\/1jQXW7r5ikhyjovWrGB3gikrjgSoWxzdE\/view?usp=sharing<\/a><\/p>\n<p>And the transmittance of the waveguide is:<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/07\/25-07-2024-1721885797-AlN_straight_air.png\" alt=\"\"><\/p>\n<p>Please take a look. Thank you and have a nice day!<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-373532","topic","type-topic","status-closed","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 am trying to simulate a straight waveguide of AlN on sapphire substrate with air as the cladding layer. The center wavelength is 369nm. However, the transmitance shows that when the wavelength is longer than 370nm, the material does not confine the light at all. Attached is the fsp file.https:\/\/drive.google.com\/file\/d\/1jQXW7r5ikhyjovWrGB3gikrjgSoWxzdE\/view?usp=sharingAnd the transmittance of the waveguide\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/strange-transmitance-of-aln-straight-waveguide-on-sapphire-substrate\/\" \/>\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=\"Strange transmitance of AlN straight waveguide on sapphire substrate | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Hello,I am trying to simulate a straight waveguide of AlN on sapphire substrate with air as the cladding layer. The center wavelength is 369nm. However, the transmitance shows that when the wavelength is longer than 370nm, the material does not confine the light at all. Attached is the fsp file.https:\/\/drive.google.com\/file\/d\/1jQXW7r5ikhyjovWrGB3gikrjgSoWxzdE\/view?usp=sharingAnd the transmittance of the waveguide\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/strange-transmitance-of-aln-straight-waveguide-on-sapphire-substrate\/\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/07\/25-07-2024-1721885797-AlN_straight_air.png\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/07\/25-07-2024-1721885797-AlN_straight_air.png\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-07-25T05:38:25+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-07-25T05:38:25+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Strange transmitance of AlN straight waveguide on sapphire substrate | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Hello,I am trying to simulate a straight waveguide of AlN on sapphire substrate with air as the cladding layer. The center wavelength is 369nm. However, the transmitance shows that when the wavelength is longer than 370nm, the material does not confine the light at all. Attached is the fsp file.https:\/\/drive.google.com\/file\/d\/1jQXW7r5ikhyjovWrGB3gikrjgSoWxzdE\/view?usp=sharingAnd the transmittance of the waveguide\" \/>\n\t\t<meta name=\"twitter:image\" content=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/07\/25-07-2024-1721885797-AlN_straight_air.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\\\/topic\\\/strange-transmitance-of-aln-straight-waveguide-on-sapphire-substrate\\\/#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\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"position\":2,\"name\":\"Topics\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/strange-transmitance-of-aln-straight-waveguide-on-sapphire-substrate\\\/#listItem\",\"name\":\"Strange transmitance of AlN straight waveguide on sapphire substrate\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/strange-transmitance-of-aln-straight-waveguide-on-sapphire-substrate\\\/#listItem\",\"position\":3,\"name\":\"Strange transmitance of AlN straight waveguide on sapphire substrate\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}}]},{\"@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\\\/topic\\\/strange-transmitance-of-aln-straight-waveguide-on-sapphire-substrate\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/strange-transmitance-of-aln-straight-waveguide-on-sapphire-substrate\\\/\",\"name\":\"Strange transmitance of AlN straight waveguide on sapphire substrate | Ansys Learning Forum\",\"description\":\"Hello,I am trying to simulate a straight waveguide of AlN on sapphire substrate with air as the cladding layer. The center wavelength is 369nm. However, the transmitance shows that when the wavelength is longer than 370nm, the material does not confine the light at all. Attached is the fsp file.https:\\\/\\\/drive.google.com\\\/file\\\/d\\\/1jQXW7r5ikhyjovWrGB3gikrjgSoWxzdE\\\/view?usp=sharingAnd the transmittance of the waveguide\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/strange-transmitance-of-aln-straight-waveguide-on-sapphire-substrate\\\/#breadcrumblist\"},\"datePublished\":\"2024-07-25T05:38:25+00:00\",\"dateModified\":\"2024-07-25T05:38:25+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":"Strange transmitance of AlN straight waveguide on sapphire substrate | Ansys Learning Forum","description":"Hello,I am trying to simulate a straight waveguide of AlN on sapphire substrate with air as the cladding layer. The center wavelength is 369nm. However, the transmitance shows that when the wavelength is longer than 370nm, the material does not confine the light at all. Attached is the fsp file.https:\/\/drive.google.com\/file\/d\/1jQXW7r5ikhyjovWrGB3gikrjgSoWxzdE\/view?usp=sharingAnd the transmittance of the waveguide","canonical_url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/strange-transmitance-of-aln-straight-waveguide-on-sapphire-substrate\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/strange-transmitance-of-aln-straight-waveguide-on-sapphire-substrate\/#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\/topics\/#listItem","name":"Topics"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/topics\/#listItem","position":2,"name":"Topics","item":"https:\/\/innovationspace.ansys.com\/forum\/topics\/","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/strange-transmitance-of-aln-straight-waveguide-on-sapphire-substrate\/#listItem","name":"Strange transmitance of AlN straight waveguide on sapphire substrate"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","name":"Home"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/strange-transmitance-of-aln-straight-waveguide-on-sapphire-substrate\/#listItem","position":3,"name":"Strange transmitance of AlN straight waveguide on sapphire substrate","previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/topics\/#listItem","name":"Topics"}}]},{"@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\/topic\/strange-transmitance-of-aln-straight-waveguide-on-sapphire-substrate\/#webpage","url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/strange-transmitance-of-aln-straight-waveguide-on-sapphire-substrate\/","name":"Strange transmitance of AlN straight waveguide on sapphire substrate | Ansys Learning Forum","description":"Hello,I am trying to simulate a straight waveguide of AlN on sapphire substrate with air as the cladding layer. The center wavelength is 369nm. However, the transmitance shows that when the wavelength is longer than 370nm, the material does not confine the light at all. Attached is the fsp file.https:\/\/drive.google.com\/file\/d\/1jQXW7r5ikhyjovWrGB3gikrjgSoWxzdE\/view?usp=sharingAnd the transmittance of the waveguide","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/strange-transmitance-of-aln-straight-waveguide-on-sapphire-substrate\/#breadcrumblist"},"datePublished":"2024-07-25T05:38:25+00:00","dateModified":"2024-07-25T05:38:25+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":"Strange transmitance of AlN straight waveguide on sapphire substrate | Ansys Learning Forum","og:description":"Hello,I am trying to simulate a straight waveguide of AlN on sapphire substrate with air as the cladding layer. The center wavelength is 369nm. However, the transmitance shows that when the wavelength is longer than 370nm, the material does not confine the light at all. Attached is the fsp file.https:\/\/drive.google.com\/file\/d\/1jQXW7r5ikhyjovWrGB3gikrjgSoWxzdE\/view?usp=sharingAnd the transmittance of the waveguide","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/strange-transmitance-of-aln-straight-waveguide-on-sapphire-substrate\/","og:image":"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/07\/25-07-2024-1721885797-AlN_straight_air.png","og:image:secure_url":"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/07\/25-07-2024-1721885797-AlN_straight_air.png","article:published_time":"2024-07-25T05:38:25+00:00","article:modified_time":"2024-07-25T05:38:25+00:00","twitter:card":"summary_large_image","twitter:title":"Strange transmitance of AlN straight waveguide on sapphire substrate | Ansys Learning Forum","twitter:description":"Hello,I am trying to simulate a straight waveguide of AlN on sapphire substrate with air as the cladding layer. The center wavelength is 369nm. However, the transmitance shows that when the wavelength is longer than 370nm, the material does not confine the light at all. Attached is the fsp file.https:\/\/drive.google.com\/file\/d\/1jQXW7r5ikhyjovWrGB3gikrjgSoWxzdE\/view?usp=sharingAnd the transmittance of the waveguide","twitter:image":"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/07\/25-07-2024-1721885797-AlN_straight_air.png"},"aioseo_meta_data":{"post_id":"373532","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 16:35:53","updated":"2024-10-28 16:35:53","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\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\/topics\/\" title=\"Topics\">Topics<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tStrange transmitance of AlN straight waveguide on sapphire substrate\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/innovationspace.ansys.com\/forum"},{"label":"Topics","link":"https:\/\/innovationspace.ansys.com\/forum\/topics\/"},{"label":"Strange transmitance of AlN straight waveguide on sapphire substrate","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/strange-transmitance-of-aln-straight-waveguide-on-sapphire-substrate\/"}],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["153255","2592"],"_bbp_author_ip":["2601:408:c403:2597:7004:22a:9667:8ec"]," _bbp_last_reply_id":["0"],"_btv_view_count":["93"]," _bbp_likes_count":["0"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["373532"],"_bbp_forum_id":["27833"],"_bbp_engagement":["2592","153255"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["373661"],"_bbp_last_active_id":["373661"],"_bbp_last_active_time":["2024-07-25 17:01:59"]},"test":"c99817f63de5a46b7cee3d7d4fd31a406bec7434"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/373532","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\/373532\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=373532"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}