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Ray Optics Module: Correlation Mesh Grid Size and Electric Field
Posted May 2, 2021, 3:41 a.m. EDT Ray Optics Version 5.6 0 Replies
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Hello,
I would have a question concerning the relation of the mesh grid size with the electric fields in the ray optics module:
I am trying to simulate the interference pattern of two monochromatic interferring waves obtained from a single source but split up into two beams with the help of Fresnel mirrors. I am working in the 2D model and want to derive the intensity as a function of x via electric fields. Yet, my problem is that depending on the size of the mesh grid, the dimension of the electric field changes quite drastically. I tried to use the approach that my maximum meshgrid size is the "fringe width/10" but it does not lead to reasonable results. However, setting my fringe width to "fringe width/5" does. Now, I wanted to ask if there is any specific relation between the mesh grid size and the computation of the electric field in Comsol? So that I can derive the fitting mesh grid size for my system?
Thank you!!
Hello Corinna Fohn
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