How does an optical spatial filter work?
on2t1inf8b
Answered question
2022-07-20
Answer & Explanation
Bubbinis4
Beginner2022-07-21Added 8 answers
So in practice the beam will become more Gaussian after passage through a subresolvable pinhole, i.e. one of diameter that is smaller than approximately λ/NA, where NA is the beam's numerical aperture.
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