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|a 10.1364/AO.447023
|2 doi
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|a koha001016452
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|a RU-ToGU
|b rus
|c RU-ToGU
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|a Experimental study of high-intensity light channels produced on an extended air path by phase and amplitude modulated femtosecond laser pulses
|c D. V. Apeksimov, Yu. E. Geints, G. G. Matvienko [et al.]
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|a Текст
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|a электронный
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|a Библиогр.: 29 назв.
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|a We present the results of our experimental study of the propagation dynamics of high-power femtosecond laser radiation in air with initially imposed amplitude and/or phase modulations. Depending on the modulation type and magnitude, the laser pulse upon nonlinear propagation breaks up into several high-intensity spatially localized light channels, which may or may not contain air plasma and thus are referred to as laser filaments, post-filaments, or plasmaless channels. The pulse modulations are implemented by means of control of the phase or amplitude front using a bimorph deformable mirror or amplitude masks, respectively.We showthat the distance of formation and spatial length of high-intensity light channels along a propagation path strongly depend on the shapes and spatial positions of the inhomogeneities created in the transverse phase/amplitude pulse profile, butweakly depend on their sizes.
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|a фемтосекундные лазерные импульсы
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|a фазовые модуляции
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|a световые каналы высокой интенсивности
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|a статьи в журналах
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|a Apeksimov, Dmitrij V.
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|a Geints, Yuri E.
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|a Matvienko, Gennadij G.
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|a Oshlakov, Viktor K.
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|a Zemlyanov, Alexander A.
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|t Applied optics
|d 2022
|g Vol. 61, № 6. P. 1300-1306
|x 1559-128X
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|a RU-ToGU
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|u http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001016452
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|a статья
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