Filamentation of focused and collimated laser beams in liquids

D. V. Apeksimov; O. A. Bukin; S. S. Golik; A. A. Zemlyanov; A. M. Kabanov; O. I. Kuchinskaya; G. G. Matvienko; V. K. Oshlakov; A. V. Petrov; E. B. Sokolova; E. E. Khoroshaeva

doi:10.1117/12.2205790

19 November 2015 Filamentation of focused and collimated laser beams in liquids

D. V. Apeksimov, O. A. Bukin, S. S. Golik, A. A. Zemlyanov, A. M. Kabanov, O. I. Kuchinskaya, G. G. Matvienko, V. K. Oshlakov, A. V. Petrov, E. B. Sokolova, E. E. Khoroshaeva

Author Affiliations +

Proceedings Volume 9680, 21st International Symposium Atmospheric and Ocean Optics: Atmospheric Physics; 96801X (2015) https://doi.org/10.1117/12.2205790
Event: XXI International Symposium Atmospheric and Ocean Optics. Atmospheric Physics, 2015, Tomsk, Russian Federation

Abstract

Experimental results of investigations into the transformation of the spectral and spatial characteristics of femtosecond collimated and focused Ti:Sapphire-laser beams with wavelengths of 800 and 400 nm upon filamentation in continuous liquid media are presented. It is shown that broadening of the laser pulse spectrum due to phase self-modulation in the medium with a cubic nonlinearity depends on the pulse power and beam diameter. Dependences of the number of filaments, width of laser radiation spectrum, nonlinear focusing distance, and diameter of the filamentation region on the laser pulse power are measured. The existence of a relative power interval in which the explosive growth of the number of filaments occurs, is established.

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D. V. Apeksimov, O. A. Bukin, S. S. Golik, A. A. Zemlyanov, A. M. Kabanov, O. I. Kuchinskaya, G. G. Matvienko, V. K. Oshlakov, A. V. Petrov, E. B. Sokolova, and E. E. Khoroshaeva "Filamentation of focused and collimated laser beams in liquids", Proc. SPIE 9680, 21st International Symposium Atmospheric and Ocean Optics: Atmospheric Physics, 96801X (19 November 2015); https://doi.org/10.1117/12.2205790

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