Hello Everyone,
is it possible to simulate diffraction with optical photons in Geant4? For example simulating a light source through an aperture? It doesnt seem so in my similations
Thank you very much!
T
No, it’s not possible. Geant4 treats optical photons as Newtonian “corpuscles,” not as waves. Apertures, no matter how narrow, act as simple “collimators.”
I put a little thought into how to do this a long time ago, and it wouldn’t be easy. I think you would need to define the aperture itself as a separate volume, so that Geant4 would have a step boundary at the entrance and exit of the aperture. Then you could have a separate “diffraction process” to change the photon’s direction.
Thanks for the quick answer, i was afraid of that. i see what i can get nevertheless