Effect of the topological charge of a vortex light beam of a high-power femtosecond radiation on the statistical characteristics of the filamentation domain geometry in the turbulent atmosphere

A. A. Zemlyanov; A. D. Buligin

doi:10.1117/12.2646090

7 December 2022 Effect of the topological charge of a vortex light beam of a high-power femtosecond radiation on the statistical characteristics of the filamentation domain geometry in the turbulent atmosphere

A. A. Zemlyanov, A. D. Buligin

Author Affiliations +

Proceedings Volume 12341, 28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 123411Q (2022) https://doi.org/10.1117/12.2646090
Event: 28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 2022, Tomsk, Russia

Abstract

The influence of the type of the initial beam profile on the beginning and end of filamentation in a turbulent medium is considered based on a numerical experiment. It is shown that the beginning and length of filamentation can both move away and get close depending on the initial profile of the laser beam amplitude with topological charge increasing. In addition, the filamentation length decreases with increase of a topological charge. The statistical dispersion of the spread of the longitudinal filamentation boundaries decreases monotonically with an increase of the topological charge; in turn, the dispersion of lateral spread does not have a unique dependence on the topological charge value.

Citation Download Citation

A. A. Zemlyanov and A. D. Buligin "Effect of the topological charge of a vortex light beam of a high-power femtosecond radiation on the statistical characteristics of the filamentation domain geometry in the turbulent atmosphere", Proc. SPIE 12341, 28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 123411Q (7 December 2022); https://doi.org/10.1117/12.2646090

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