Can I simulate Newtons Rings with Elmer? (Light)

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hartox
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Can I simulate Newtons Rings with Elmer? (Light)

Post by hartox » 01 Jun 2019, 20:29

Hello, I am currently taking a electromagnetism course in college and I need to simulate Newtons Rings ( monocromatic light into a lens) and visualize the difraction pattern, can I do it with Elmer? if so, please give me some ideas how. ( I know to model a lens using Gmsh).

raback
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Re: Can I simulate Newtons Rings with Elmer? (Light)

Post by raback » 02 Jun 2019, 15:19

Hi

This would basically be solver by VectorHelholtzSolver as complex valued electrical field. However, the wave number is easily so large that the simulation becomes impractical. In FE you need at least 10 elements per wave so you can calculate the number of elements requires in 2D and 3D.

-Peter

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