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How enter relative permitivity of a material

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How can I define relative permitivty of a material in comsol, if I knew real and imaginary parts of refrative index for a range of wavelenths in table form. plz help me.


1 Reply Last Post Aug 20, 2023, 4:44 p.m. EDT
Robert Koslover Certified Consultant

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Posted: 8 months ago Aug 20, 2023, 4:44 p.m. EDT
Updated: 8 months ago Aug 20, 2023, 4:47 p.m. EDT

You can specify the relative permittivity of a material under the material properties.
Component --> Materials --> etc. I suggest you consult the Comsol Multiphysics Help system and/or study the examples in the supplied Application Library, to see how this is done. If you have data in the form of a table, you may wish to import it and create an interpolation function to go with that data. You can then use that interpolation function in your specification of the material's permittivity.

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Scientific Applications & Research Associates (SARA) Inc.
www.comsol.com/partners-consultants/certified-consultants/sara
You can specify the relative permittivity of a material under the material properties. Component --> Materials --> etc. I suggest you consult the Comsol Multiphysics Help system and/or study the examples in the supplied Application Library, to see how this is done. If you have data in the form of a table, you may wish to import it and create an interpolation function to go with that data. You can then use that interpolation function in your specification of the material's permittivity.

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