Email this article Asymmetry of filtering properties of zeros and first Bragg orders
- Authors: Kotov V.M.1, Averin S.V.1, Belousova A.S.1
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Affiliations:
- Fryazino branch Kotelnikov Institute of Radio Engineering and Electronics of RAS
- Issue: Vol 70, No 9 (2025)
- Pages: 874-878
- Section: ON THE 90th ANNIVERSARY OF Yu.V. GULYAEV
- URL: https://journals.rcsi.science/0033-8494/article/view/352921
- DOI: https://doi.org/10.7868/S3034590125090118
- ID: 352921
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Abstract
The effect of Bragg diffraction occurring in the tangential geometry of the acousto-optic (AO) interaction on the speckle structure of the zero and first diffraction orders is investigated. It is established that in the first order, the fine-grained background of the speckle structure is significantly suppressed in comparison with the zero-order structure. Experiments have been performed on filtering speckle-containing optical radiation with a wavelength of 0.63 microns using an AO cell from TeO2 operating in tangential diffraction geometry at a sound frequency of 100 MHz. A decrease in the fine-grained background in the first order was revealed by ~7 times in comparison with the speckle structure of the zeros order of diffraction.
About the authors
V. M. Kotov
Fryazino branch Kotelnikov Institute of Radio Engineering and Electronics of RAS
Email: vmk277@ire216.msk.su
Vvedensky square, 1, Fryazino, Moscow region, 141190 Russian Federation
S. V. Averin
Fryazino branch Kotelnikov Institute of Radio Engineering and Electronics of RASVvedensky square, 1, Fryazino, Moscow region, 141190 Russian Federation
A. S. Belousova
Fryazino branch Kotelnikov Institute of Radio Engineering and Electronics of RASVvedensky square, 1, Fryazino, Moscow region, 141190 Russian Federation
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