GaussianBeam with a waist radius smaller than wavelength shows strange result
Opened this issue · 2 comments
tomflexcompute commented
dmarek-flex commented
I worked on reproducing this and testing how discretization affects the results. Discretization has no effect on the field distribution, so I believe the issue is due to the simple fact that the beam radius is subwavelength and therefore the paraxial approximation for the Gaussian beam is inaccurate.
tomflexcompute commented
Didn't realize we actually use the paraxial approximation for the gaussian beam. That definitely makes sense.