Multifilamentation of collimated Ti:Sapphire-laser beams in water
D.V. Apeximov1, O.A. Bukin2, S.S. Golik3, A.A. Zemlyanov1, A.M. Kabanov1, O.I. Kuchinskaya4, A.Yu. Mayor2, G.G. Matvienko1, V.K. Oshlakov1, A.V. Petrov1, E.B. Sokolova2, E.E. Khoroshaeva1
1V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, 1, Academician Zuev square, Tomsk, 634021, Russia
2Institute of Automation and Control Prosesses Far Easten Branch of the Russian Academy of Science, 5 Radio Street, Vladivostok, 690041
3Far Eastern Federal University, 8, Suhanova St., Vladivostok, 690950, Russia
4National Research Tomsk State University, 36, Lenin Avenue, Tomsk, 634050,Russia
Keywords: laser radiation, filamentation, femtosecond pulse, liquid, spectrum
Abstract
The results of experimental studies of femtosecond laser pulse filamentation in water are presented. The dependencies of filament number, laser radiation spectrum width, distance of nonlinear focusing, diameter of filamentation zone on laser pulse power are measured. A part of the scale of relative power is marked out; filament number increases dramatically after passing it.
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