Simulating EM waves between two media using COMSOL MULTIPHYSICS

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In this video, we'll discuss how to utilize COMSOL Multiphysics to simulate EM waves striking a surface. Snells' law of refraction, which is discussed in physics, has the following mathematical formulation:
The formula reads n_1*sin (theta_i)=n_2*sin (theta_r), where n_1 and n_2 are the two media's refractive indices and theta_i and theta_r are incidence and refractive angle descriptions, respectively. In the current simulation, I've used the 2D model in which light is launched into the air while an air block is retained over a glass block. I have taken into account different light wavelengths ranging from 0.1 micrometers to 1.55 micrometers. This serves to illustrate how the wavelength shift between the two mediums occurs in this frequency range.
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I do not own the copyright to any of the images or music included in this video. This video is intended for educational purposes only, and I am not making any money from it. I do not intend to infringe on anyone's copyright, and if any infringement has occurred, it is unintentional.
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[@tilkesh]

Thx

[@sidratulmuntaha3024]

I am not getting how you have selected a rectangle in Geometry at 3:03 ??

[@hafizejazahmad6592]

Thanks for making such a good learning video. Can you make the video on "how to model and do simulation of sound waves in composite materials"?

[@labonibanerjee8910]

You spoke with a lot of confidence. Well done 👍🏼

[@thedigitalphysicist]

Thank you 😁

[@AnkitaSarma]

Thank you for the video Sir.. Sir can I get your email Id to ask some queries, I am Ankita , first yr Research Scholar. So this semester I am taking photonic crystal as my course work there I need some simulation in comsol but I am an experimental physicist thereby I am unable to get the computational part properly. Sir kindly help in this regard

[@PranavGeorge]

Is there any method for anisotropic refractive index

[@thedigitalphysicist]

Hi @PranavGeorge Sorry for such a late reply. I guess you haven't received any help on this matter. I can guide you on this matter. If your are doing your simulation on the ewfd in wave optics module then you can directly use the anistropic refractive index. For this first select a body and then select a material from the library. Now when you are going for a personalised matter then you can choose a blank material. In that you will get Refractive index as one of the parameter and there the option of anisotropy is available.