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Phase filter for selection of angular harmonics

V.V. Kotlyar, S.N. Khonina

Image Processing Systems Institute of RAS

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Pages: 51-55.

Full text of article: Russian language.

Abstract:
This paper considers the DOEs intended for the selection of angular harmonics present in a laser beam. An angular harmonic is a complex exponential function, the argument of which is linearly dependent on the polar angle, and the integer aspect ratio is its number. An 8-channel phase DOE was designed for the selection of angular harmonics with the numbers ± 1, ± 2, ± 3, ± 4, and numerical simulation was performed for Bessel and Gauss-Laguerre beams.

Citation:
Kotlyar VV, Khonina SN. Phase filter for selection of angular harmonics. Computer Optics 2000; 20: 51 – 55.

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