1 October 1991 Rectangular focus spots with uniform intensity profile formed by computer-generated holograms
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Proceedings Volume 1574, Intl Colloquium on Diffractive Optical Elements; (1991) https://doi.org/10.1117/12.50121
Event: International Colloquium on Diffractive Optical Elements, 1991, Szklarska Poreba, Poland
Abstract
An optical beam shaping system based on a single Computer Generated Hologram has been realized. It focuses a laser beam with Gaussian profile to a square area with uniform intensity. In order to achieve a rectangular focal spot which is as close as possible to the size of the diffraction spot, we investigated two different hologram calculation methods. The first is based on a ray tracing approach, while the second one uses an iterative Fourier transform algorithm. Computer simulations and experimental results are shown.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jens Hossfeld, Jens Hossfeld, Erwin Jaeger, Erwin Jaeger, Theo T. Tschudi, Theo T. Tschudi, Evgeny G. Churin, Evgeny G. Churin, Voldemar Petrovich Koronkevich, Voldemar Petrovich Koronkevich, } "Rectangular focus spots with uniform intensity profile formed by computer-generated holograms", Proc. SPIE 1574, Intl Colloquium on Diffractive Optical Elements, (1 October 1991); doi: 10.1117/12.50121; https://doi.org/10.1117/12.50121
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