Электронная библиотека (репозиторий) Томского государственного университета
Zemlyanov, Alexander A. | самофокусировка

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Add   Condition for stopping the collapse of high-power femtosecond laser pulses during propagation through an optical medium
Authors: Zemlyanov, Alexander A. | Minina, Olga V.
Source: Atmospheric and oceanic optics. 2023. Vol. 36, № 4. P. 314-322
Type: статьи в журналах
Date: 2023
Description: An intensity collapse stopping criterion is determined in the approximation of the nonlinear Schrödinger equation for the problem of self-focusing of high-power femtosecond laser radiation in an optic ... More
Add   Numerical simulations of self-channeling and filamentation of spatially pre-modulated high-power femtosecond laser pulse in air
Authors: Geints, Yuri E. | Zemlyanov, Alexander A. | Minina, Olga V.
Source: Proceedings of SPIE. 2022. Vol. 12341 : 28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 2022, Tomsk, Russia. P. 123410C-1-123410C-8
Type: статьи в журналах
Date: 2022
Description: The numerical simulations of propagation of high-power femtosecond laser pulses in air under conditions of superposed spatial phase modulation are carried out on the basis of the reduced form of nonli ... More
Add   Propagation of high-power phase-modulated femtosecond laser pulses in air in the self-channeling and filamentation modes
Authors: Geints, Yuri E. | Zemlyanov, Alexander A. | Minina, Olga V.
Source: Atmospheric and oceanic optics. 2022. Vol. 35, № 5. P. 475-484
Type: статьи в журналах
Date: 2022
Description: Propagation of high-power phase-modulated femtosecond laser pulses in air is simulated numerically. Spatial modulation of the initial wavefront of the pulse was implemented using a programmable phase ... More
Add   Using the nonlinear layer model for estimation of characteristics of high-power ultrashort laser pulse beams propagating along an aerospace path
Authors: Zemlyanov, Alexander A. | Minina, Olga V.
Source: Proceedings of SPIE. 2022. Vol. 12341 : 28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 2022, Tomsk, Russia. P. 1234109-1-1234109-5
Type: статьи в журналах
Date: 2022
Description: The propagation of high-power ultrashort laser pulses on aerospace paths when laser radiation is sent from the Earth into space is analyzed theoretically. Titanium-sapphire and CO2 lasers with femtose ... More
Add   Global self-focusing and features of multiple filamentation of radiation of a subterawatt Ti:sapphire laser with a centimeter output aperture along a 150-m path
Authors: Zemlyanov, Alexander A. | Iglakova, Anastasiya N. | Kabanov, Andrej M. | Kuchinskaya, Olesya I. | Matvienkoj, Gennadij G. | Oshlakov, Viktor K. | Petrov, Aleksej V. | Apeksimov, Dmitrij V.
Source: Atmospheric and oceanic optics. 2018. Vol. 31, № 1. P. 31-35
Type: статьи в журналах
Date: 2018
Description: The formation and propagation of postfilamentation channels along a controllable path 150 m long are studied experimentally for collimated beams of different diameters. During multiple filamentation, ... More
Add   Localized high-intensity light structures during multiple filamentation of Ti:sapphire-laser femtosecond pulses along an air path
Authors: Zemlyanov, Alexander A. | Iglakova, Anastasiya N. | Kabanov, Andrej M. | Kuchinskaya, Olesya I. | Matvienko, Gennadij G. | Oshlakov, Viktor K. | Petrov, Aleksej V. | Sokolova, Ekaterina B. | Apeksimov, Dmitrij V.
Source: Atmospheric and oceanic optics. 2018. Vol. 31, № 2. P. 107-111
Type: статьи в журналах
Date: 2018
Description: The results of experimental studies of the transverse structure of a laser beam after multiple filamentation are presented. A ring structure of radiation is formed around individual filaments in a bea ... More
Add   Filamentation of collimated Ti:sapphire-laser pulses in the glass
Authors: Apeksimov, Dmitrij V. | Golik, Sergej S. | Zemlyanov, Alexander A. | Iglakova, Anastasiya N. | Kabanov, Andrej M. | Kuchinskaya, Olesya I. | Matvienko, Gennadij G. | Oshlakov, Viktor K. | Petrov, Aleksej V. | Bukin, Oleg A. | Sokolova, Ekaterina B.
Source: Proceedings of SPIE. 2015. Vol. 9810 : XII International Conference on Atomic and Molecular Pulsed Lasers. P. 98100H-1-98100H-4
Type: статьи в журналах
Date: 2015
Description: The results of experiments to study the spatial characteristics of multiple filamentation gigawatt laser pulses in the glass are presented. It is shown that with increasing pulse power multiple filame ... More
Add   Post-focal filamentation of an externally focused femtosecond laser pulse in air
Authors: Geints, Yuri E. | Zemlyanov, Alexander A.
Source: Laser physics. 2013. Vol. 23. P. 035301-1-035301-8
Type: статьи в журналах
Date: 2013
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