{"id":378011,"date":"2024-08-12T18:57:03","date_gmt":"2024-08-12T18:57:03","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/378011\/"},"modified":"2024-08-12T18:57:03","modified_gmt":"2024-08-12T18:57:03","slug":"378011","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/378011\/","title":{"rendered":"Reply To: Simulation of absorptivity of polymers"},"content":{"rendered":"<p>&lt;p&gt;You may consider the following two issues:&lt;\/p&gt;&lt;p&gt;1: when you say high reflectivity, what is the condition? how thick is the polymer? is it on SiO2?&nbsp;&lt;\/p&gt;&lt;p&gt;2: did you use lossy material data, eg, real(n)+i*imag(n)? absorption happens only when the material has loss, eg the imaginary part of the refractive index is non-zero. If it is pure dielectric, there is no absorption.&lt;\/p&gt;&lt;p&gt;Have you measured the refractive index? from my experience, the imaginary part is difficult to measure, if not using polarimetry. Please check the actual refractive index you used, and make sure the thickness is porperly set to compare with experiment.&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-378011","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=\"You may consider the following two issues:1: when you say high reflectivity, what is the condition? how thick is the polymer? is it on SiO2? 2: did you use lossy material data, eg, real(n)+i*imag(n)? absorption happens only when the material has loss, eg the imaginary part of the refractive index is non-zero. If it is pure\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/378011\/\" \/>\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: Simulation of absorptivity of polymers | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"You may consider the following two issues:1: when you say high reflectivity, what is the condition? how thick is the polymer? is it on SiO2? 2: did you use lossy material data, eg, real(n)+i*imag(n)? absorption happens only when the material has loss, eg the imaginary part of the refractive index is non-zero. If it is pure\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/378011\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-08-12T18:57:03+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-08-12T18:57:03+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: Simulation of absorptivity of polymers | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"You may consider the following two issues:1: when you say high reflectivity, what is the condition? how thick is the polymer? is it on SiO2? 2: did you use lossy material data, eg, real(n)+i*imag(n)? absorption happens only when the material has loss, eg the imaginary part of the refractive index is non-zero. 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If it is pure","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/378011\/","article:published_time":"2024-08-12T18:57:03+00:00","article:modified_time":"2024-08-12T18:57:03+00:00","twitter:card":"summary_large_image","twitter:title":"Reply To: Simulation of absorptivity of polymers | Ansys Learning Forum","twitter:description":"You may consider the following two issues:1: when you say high reflectivity, what is the condition? how thick is the polymer? is it on SiO2? 2: did you use lossy material data, eg, real(n)+i*imag(n)? absorption happens only when the material has loss, eg the imaginary part of the refractive index is non-zero. 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