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Coherence of vortex pseudo-Bessel beams in turbulent atmosphere

I.P. Lukin1

1 Zuev Institute of Atmospheric Optics SB RAS,
sq. Academician Zuev 1, 634055, Tomsk, Russia

 PDF, 1306 kB

DOI: 10.18287/2412-6179-2019-43-6-926-935

Pages: 926-935.

Full text of article: Russian language.

Abstract:
Theoretical research of coherent properties of vortex conic waves propagating in a turbulent atmosphere was developed. The analysis was based on the analytical solution of the equation for the transverse second-order mutual coherence function of a light field. The following characteristics of coherence of vortex conic waves were considered: the coherence degree, the coherence radius, the root-mean-square and the integral scale of coherence degree. Dependence of these characteristics on the parameters of optical radiation and turbulent atmosphere was analyzed. Unlike the coherence radius, the root-mean-square and integral scales of the coherence degree of vortex conic waves were found to be highly sensitive to the influence of atmospheric turbulence.

Keywords:
conic wave, topological charge, optical radiation, atmospheric turbulence, coherence, coherence radius.

Citation:
Lukin IP. Coherence of vortex pseudo-Bessel beams in turbulent atmosphere. Computer Optics 2019; 43(6): 926-935. DOI: 10.18287/2412-6179-2019-43-6-926-935.

Acknowledgements:
The work was funded under a basic research project of the Russian Academy of Sciences, No. АААА-А17-117021310149-4.

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