I need to be able to simulate grit-ground or sandblasted glass scattering in Zemax. I looked through Knowledgebase articles and nothing jumped out at me about how to do that.
Total integrated scatter (TIS) for a ground surface is generalized by the scatter function
TIS = [ 4π (RMS surface roughness) / wavelength ]²
If I have a surface with RMS surface roughness of 100Å and illuminate it at 6328Å, TIS = 0.039, or about 3.9%.
What Zemax settings can I use to simulate TIS? Suggestions? Mike