Daniel Petka's latest activity

Sure, here is the code I used: from numpy.fft import fft2, ifft2, fftfreq import numpy as np from matplotlib import pyplot as plt x =...

Didn't express myself clearly here, sorry. I didn't refer to the delta function when I said that the integral cancel, but to the plane...

Yes, this was my point. The lens just brings the far field to a focal plane. The Fourier Transform happens in the far field. The...

Thanks for the insight! I think I can pin point the bit that I'm struggling with here: If we're dealing with plane waves, then nothing...

I thought about it for a while now.. First of all, the Fourier Transform happens in the far field. People who say that a lens performs a...

Sorry, my bad. Should be fixed now. This is gibberish without images (possibly even with images) The question is: Why do plane waves get...

If the distance between the input and the output screen d is large enough, then for a plane wave (with some spatial frequencies vx and...

I started by converting the LSM from sum to integral form: $$f(x_c) = \sum_i[S(x_i)-F(x_i,;a,b,...)]^2 to f(x_c) = \int( S(x) -...

Thank you for the reply! This is probably one of those cases where intuition fails

Here is my thought experiment: Let's say I attenuate a very short laser pulse to single photon intensity. Due to the uncertainty...