Learning Forum

[Wing Ko]

I was wondering if there is more information about simulating nonlinear effects in FDTD/varFDTD. I checked that there are different material models I can use but is there a guide on which models are best suited for what applications? Also, I do not see the material models do not account for two photon absorption or the free carrier effects, so is there a model that can do that as well?

Thank you!

[Devika Padmakumar Nair]

Hello, 

These are the examples available in nonlinear optical: Nonlinear optics - list of examples – Ansys Optics

You can try Chi3 Ramman model and further information available here: https://optics.ansys.com/hc/en-us/articles/360034394734

Also, you can vote new features, and file your feature request here:

Ideas (lumerical.com)

Hope these helps. 

Thanks and regards

Devika

[Wing Ko]

Hi Devika

I did look over those examples but I was wondering if there is better documentation on how Lumerical implements nonlinear effects. 

Thank you!