Paper
15 December 2021 Interpretation of experimental data on multiple filamentation of high-power femtosecond laser pulses in air based on the diffraction-ray model of single filamentation
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Proceedings Volume 11916, 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics; 119160P (2021) https://doi.org/10.1117/12.2602330
Event: 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 2021, Moscow, Russian Federation
Abstract
Experimental data on self-focusing and filamentation of high-power ultrashort laser pulses for wide-aperture (centimeter) beams of sub-terawatt power are interpreted on the basis of the diffraction-ray model of single filamentation. The intensity inhomogeneities in the initial transverse profile of the laser beam, the Kerr self-focusing of which leads to the formation of high-intensity light channels, are considered. The parameters of these inhomogeneities are estimated, which is important for numerical simulation of multiple filamentation of ultrashort laser pulses along atmospheric paths.
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A. A. Zemlyanov and O. V. Minina "Interpretation of experimental data on multiple filamentation of high-power femtosecond laser pulses in air based on the diffraction-ray model of single filamentation", Proc. SPIE 11916, 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 119160P (15 December 2021); https://doi.org/10.1117/12.2602330
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KEYWORDS
Femtosecond phenomena

High power lasers

Atmospheric optics

Numerical simulations

Atmospheric propagation

Laser beam propagation

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