Hi

I am trying to project a random phase mask in which each pixel varies from 0-2pi.

I am using a phase only SLM. I understand that the if we need to get a phase pattern we need to use gerchberg saxton algorithm and back calculate that phase that would produce that, then match it with the gray levels of the SLM and inject the pattern on it. By pacing lens at f of the lens we get the required pattern.

But my question is what if Image SLM on to the sample. Will I get the same phase pattern