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17 October 2023 The influence of a turbulent area on the transverse energy structure of femtosecond laser pulses on a 100-meter path
D. V. Apeksimov, P. A. Babushkin, Yu. E. Geints, A. M. Kabanov, E. E. Khoroshaeva, D. I. Kochetov, V. K. Oshlakov, A. V. Petrov, A. A. Zemlyanov
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Proceedings Volume 12780, 29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 1278016 (2023) https://doi.org/10.1117/12.2690771
Event: XXIX International Symposium "Atmospheric and Ocean Optics, Atmospheric Physics", 2023, Moscow, Russian Federation
Abstract
The work presents the results on the influence of the temperature of a turbulent layer on the transverse energy structure of femtosecond (multi-ring and Gaussian) laser beams. Gaussian and multi-ring beam profiles exhibit a monotonous growth in the number of intense light maxima with increasing the strength turbulence of air jet and increasing laser pulse energy. The formed intense light channels (~ 1011 W/cm2) make it possible to excite two-photon fluorescence of dyes with a signal level that makes it possible to take at a distance of 100 m.
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D. V. Apeksimov, P. A. Babushkin, Yu. E. Geints, A. M. Kabanov, E. E. Khoroshaeva, D. I. Kochetov, V. K. Oshlakov, A. V. Petrov, and A. A. Zemlyanov "The influence of a turbulent area on the transverse energy structure of femtosecond laser pulses on a 100-meter path", Proc. SPIE 12780, 29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 1278016 (17 October 2023); https://doi.org/10.1117/12.2690771
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KEYWORDS
Turbulence
Femtosecond phenomena
Laser radiation
Fluorescence
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