Impact of spatial limitedness of optical beam on amplification of the average power of scattered radiation in a turbulent atmosphere

V. A. Banakh; A. V. Falits; I. V. Zaloznaya

doi:10.1117/12.2540318

18 December 2019 Impact of spatial limitedness of optical beam on amplification of the average power of scattered radiation in a turbulent atmosphere

V. A. Banakh, A. V. Falits, I. V. Zaloznaya

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Proceedings Volume 11208, 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 112081L (2019) https://doi.org/10.1117/12.2540318
Event: XXV International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, 2019, Novosibirsk, Russian Federation

Abstract

The results of a numerical analysis of the manifestation of the backscatter amplification effect in the regime of weak optical turbulence in dependence on diffractive size of the transmitting aperture are presented. It is shown that the magnitude and localization of the amplification of the average power of the radiation back scattered in a turbulent atmosphere depends on the Fresnel number of the transmitting aperture. Since the Fresnel number changes with changes in the distance from which the lidar signal arrives, this must be taken into account when profiling the intensity of optical turbulence from the lidar data on the amplification of the average power of scattered radiation.

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V. A. Banakh, A. V. Falits, and I. V. Zaloznaya "Impact of spatial limitedness of optical beam on amplification of the average power of scattered radiation in a turbulent atmosphere", Proc. SPIE 11208, 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 112081L (18 December 2019); https://doi.org/10.1117/12.2540318

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KEYWORDS

Atmospheric optics

Optical turbulence

LIDAR

Scattering

Backscatter

Receivers

Refractive index

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