A Fourier-invariant squared Laguerre-Gaussian vortex beam
It is shown that a squared Laguerre-Gaussian (LG) vortex beam is Fourier-invariant and retains its structure at the focus of a spherical lens. In the Fresnel diffraction zone, such a beam is transformed into superposition of conventional LG beams, the number of which is equal to the number of rings...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Samara National Research University
2023-06-01
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| Series: | Компьютерная оптика |
| Subjects: | |
| Online Access: | https://computeroptics.ru/eng/KO/Annot/KO47-3/470304e.html |