Hello there, I have a basic system of lenses focusing incoming light from a laser beam onto a camera. I have a 1000 um pinhole slit, and populated it with various field lines. My question now is how can I measure the spot size or point spread function of the beam accounting for ALL field lines.
The spot diagram gives me the RMS but only of each unique field line, not combined.
The footprint diagram shows the overlay of each field line but does not give me a measured spot size.
The PSF does not allow me to plot more than 1 field line at a time.
Thank you for any guidance, this community has been very helpful in the past.
This is my very basic design. Order of surfaces is pinhole slit, collimating lens, diffraction grating, focusing lens, and camera detector.