{"id":250672,"date":"2023-02-20T21:45:43","date_gmt":"2023-02-20T21:45:43","guid":{"rendered":"\/forum\/forums\/topic\/ring-resonator-3d-fdtd-example\/"},"modified":"2023-04-18T06:38:59","modified_gmt":"2023-04-18T06:38:59","slug":"ring-resonator-3d-fdtd-example","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ring-resonator-3d-fdtd-example\/","title":{"rendered":"Ring Resonator 3D FDTD Example"},"content":{"rendered":"<p>Hello, I am trying to simulate the ring resonator FDTD example over a wider band, from 1.2 um to 1.8&nbsp; um. When I run the same example over a narrower band, for instance 1.5 um to 1.6 um, I observe a significant shift in the resonant wavelengths. I suspect that this is due to the material fit model. Is there a recommended band width to get the most accurate results for broadband simulations?<\/p>\n","protected":false},"template":"","class_list":["post-250672","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 the ring resonator FDTD example over a wider band, from 1.2 um to 1.8 um. When I run the same example over a narrower band, for instance 1.5 um to 1.6 um, I observe a significant shift in the resonant wavelengths. I suspect that this is due to the\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ring-resonator-3d-fdtd-example\/\" \/>\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=\"Ring Resonator 3D FDTD Example | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Hello, I am trying to simulate the ring resonator FDTD example over a wider band, from 1.2 um to 1.8 um. When I run the same example over a narrower band, for instance 1.5 um to 1.6 um, I observe a significant shift in the resonant wavelengths. I suspect that this is due to the\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ring-resonator-3d-fdtd-example\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2023-02-20T21:45:43+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2023-04-18T06:38:59+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Ring Resonator 3D FDTD Example | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Hello, I am trying to simulate the ring resonator FDTD example over a wider band, from 1.2 um to 1.8 um. When I run the same example over a narrower band, for instance 1.5 um to 1.6 um, I observe a significant shift in the resonant wavelengths. I suspect that this is due to the\" \/>\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\\\/ring-resonator-3d-fdtd-example\\\/#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\\\/ring-resonator-3d-fdtd-example\\\/#listItem\",\"name\":\"Ring Resonator 3D FDTD Example\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/ring-resonator-3d-fdtd-example\\\/#listItem\",\"position\":3,\"name\":\"Ring Resonator 3D FDTD Example\",\"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\\\/ring-resonator-3d-fdtd-example\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/ring-resonator-3d-fdtd-example\\\/\",\"name\":\"Ring Resonator 3D FDTD Example | Ansys Learning Forum\",\"description\":\"Hello, I am trying to simulate the ring resonator FDTD example over a wider band, from 1.2 um to 1.8 um. 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