{"id":362756,"date":"2024-04-17T16:48:32","date_gmt":"2024-04-17T16:48:32","guid":{"rendered":"\/forum\/forums\/reply\/362756\/"},"modified":"2024-04-17T16:48:32","modified_gmt":"2024-04-17T16:48:32","slug":"362756","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/362756\/","title":{"rendered":"Reply To: Effective indices of first two modes in SWG"},"content":{"rendered":"<p>&lt;p&gt;I do not understand why you change the wavelength range now. Please check.&lt;\/p&gt;&lt;p&gt;Now it has two bands. The other one may be real or fake, which will need you to identify.&lt;\/p&gt;&lt;p&gt;The First Brillouin zone gives you the max k vectors at the symmetry points. In other periodic structure with square lattice, the relative kx is from 0 to 0.5. However now it is waveguide so its range will be smaller.&nbsp;&lt;\/p&gt;&lt;p&gt;Please visit this link &nbsp;https:\/\/optics.ansys.com\/hc\/en-us\/sections\/360006919074-Photonic-crystals to check how to simulate the band structure (methodology).&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-362756","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=\"I do not understand why you change the wavelength range now. Please check.Now it has two bands. The other one may be real or fake, which will need you to identify.The First Brillouin zone gives you the max k vectors at the symmetry points. In other periodic structure with square lattice, the relative kx is\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/362756\/\" \/>\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: Effective indices of first two modes in SWG | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"I do not understand why you change the wavelength range now. Please check.Now it has two bands. The other one may be real or fake, which will need you to identify.The First Brillouin zone gives you the max k vectors at the symmetry points. In other periodic structure with square lattice, the relative kx is\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/362756\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-04-17T16:48:32+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-04-17T16:48:32+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: Effective indices of first two modes in SWG | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"I do not understand why you change the wavelength range now. Please check.Now it has two bands. The other one may be real or fake, which will need you to identify.The First Brillouin zone gives you the max k vectors at the symmetry points. In other periodic structure with square lattice, the relative kx is\" \/>\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\\\/362756\\\/#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\\\/362756\\\/#listItem\",\"name\":\"Reply To: Effective indices of first two modes in SWG\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/362756\\\/#listItem\",\"position\":2,\"name\":\"Reply To: Effective indices of first two modes in 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\\\/362756\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/362756\\\/\",\"name\":\"Reply To: Effective indices of first two modes in SWG | Ansys Learning Forum\",\"description\":\"I do not understand why you change the wavelength range now. Please check.Now it has two bands. The other one may be real or fake, which will need you to identify.The First Brillouin zone gives you the max k vectors at the symmetry points. 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Please check.Now it has two bands. The other one may be real or fake, which will need you to identify.The First Brillouin zone gives you the max k vectors at the symmetry points. In other periodic structure with square lattice, the relative kx is","canonical_url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/362756\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/362756\/#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\/362756\/#listItem","name":"Reply To: Effective indices of first two modes in SWG"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/362756\/#listItem","position":2,"name":"Reply To: Effective indices of first two modes in 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\/362756\/#webpage","url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/362756\/","name":"Reply To: Effective indices of first two modes in SWG | Ansys Learning Forum","description":"I do not understand why you change the wavelength range now. Please check.Now it has two bands. The other one may be real or fake, which will need you to identify.The First Brillouin zone gives you the max k vectors at the symmetry points. In other periodic structure with square lattice, the relative kx is","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/362756\/#breadcrumblist"},"datePublished":"2024-04-17T16:48:32+00:00","dateModified":"2024-04-17T16:48:32+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: Effective indices of first two modes in SWG | Ansys Learning Forum","og:description":"I do not understand why you change the wavelength range now. Please check.Now it has two bands. The other one may be real or fake, which will need you to identify.The First Brillouin zone gives you the max k vectors at the symmetry points. In other periodic structure with square lattice, the relative kx is","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/362756\/","article:published_time":"2024-04-17T16:48:32+00:00","article:modified_time":"2024-04-17T16:48:32+00:00","twitter:card":"summary_large_image","twitter:title":"Reply To: Effective indices of first two modes in SWG | Ansys Learning Forum","twitter:description":"I do not understand why you change the wavelength range now. Please check.Now it has two bands. The other one may be real or fake, which will need you to identify.The First Brillouin zone gives you the max k vectors at the symmetry points. 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