Vol. 34, issue 11, article # 1

Apeksimov D. V., Bаbushkin P. A., Geints Yu. E., Zemlyanov A. A., Matvienko G. G., Oshlakov V. K., Petrov A. V., Khoroshaeva E. E. Regularities of propagation of amplitude-modulated powerful femtosecond laser radiation in air. // Optika Atmosfery i Okeana. 2021. V. 34. No. 11. P. . DOI: 10.15372/AOO20211101 [in Russian].
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Abstract:

The results of experimental studies of the features of formation and path propagation of high-intensity light channels under conditions of distortions of the initial profile of a high-power femtosecond laser radiation beam are presented. The distortions are introduced by amplitude modulation of the laser beam with the help of masks. The use of amplitude masks allows generation of a preset number of high-intensity light channels and their controllable filamentation mainly at short (tens of meters) distances of radiation propagation in air.

Keywords:

ultrashort laser radiation, structured light, Kerr effect, self-focusing, high-intensity light channels

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References:

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