19 November 2015 Parameters of the ring dislocation of a degree of coherence of the vortex Bessel beam in turbulent atmosphere
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Proceedings Volume 9680, 21st International Symposium Atmospheric and Ocean Optics: Atmospheric Physics; 96801L (2015) https://doi.org/10.1117/12.2205574
Event: XXI International Symposium Atmospheric and Ocean Optics. Atmospheric Physics, 2015, Tomsk, Russian Federation
Abstract
In this paper results of theoretical consideration of behavior of degree of coherence of the coherent vortex Bessel optical beam propagating in turbulent atmosphere are presented. It is shown, that at low levels of fluctuations, in the central part of a two-dimensional field of degree of coherence of the vortex Bessel optical beams the ring dislocation is formed, the number of rings in which is equal to value of a topological charge of an optical beam. The structure of a ring dislocation of degree of coherence of the vortex Bessel optical beams in turbulent atmosphere is studied in detail. For this purpose two characteristics of a ring dislocation are entered: its spatial coordinates and width of a ring. Influence of parameters of an optical beam (a cross-section wave number and a topological charge) and atmospheric turbulence on these characteristics of a ring dislocation of degree of coherence of the vortex Bessel optical beam is considered.
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Igor P. Lukin, Igor P. Lukin, } "Parameters of the ring dislocation of a degree of coherence of the vortex Bessel beam in turbulent atmosphere", Proc. SPIE 9680, 21st International Symposium Atmospheric and Ocean Optics: Atmospheric Physics, 96801L (19 November 2015); doi: 10.1117/12.2205574; https://doi.org/10.1117/12.2205574
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