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2 November 2023 Model of the effective permittivity during intensity collapse stopping for propagation of high-power femtosecond laser pulses
A. A. Zemlyanov, O. V. Minina
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Proceedings Volume 12920, XVI International Conference on Pulsed Lasers and Laser Applications; 129200F (2023) https://doi.org/10.1117/12.3005551
Event: XVI International Conference on Pulsed Lasers and Laser Applications, 2023, Tomsk, Russian Federation
Abstract
The intensity saturation during self-focusing of high-power ultrashort laser radiation in an optical medium is considered. The propagation of a femtosecond laser pulse in air from the collapse stop point to a nonlinear focus are considered in detail. The criterion for stopping the intensity collapse is established in the approximation of the nonlinear Schrödinger equation. This criterion makes it possible to take into account the nonlinear activity of various optical media during the propagation of high-power femtosecond laser pulses. The parameters of the effective permittivity model that satisfy this criterion are determined.
(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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A. A. Zemlyanov and O. V. Minina "Model of the effective permittivity during intensity collapse stopping for propagation of high-power femtosecond laser pulses", Proc. SPIE 12920, XVI International Conference on Pulsed Lasers and Laser Applications, 129200F (2 November 2023); https://doi.org/10.1117/12.3005551
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KEYWORDS
Plasma
High power lasers
Laser radiation
Atmospheric propagation
Diffraction
Femtosecond phenomena
Wave propagation
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