Filamentation of collimated Ti:sapphire-laser pulses in water

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

doi:10.1117/12.2220772

15 December 2015 Filamentation of collimated Ti:sapphire-laser pulses in water

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

Author Affiliations +

Proceedings Volume 9810, International Conference on Atomic and Molecular Pulsed Lasers XII; 98100I (2015) https://doi.org/10.1117/12.2220772
Event: XII International Conference on Atomic and Molecular Pulsed Lasers, 2015, Tomsk, Russian Federation

Abstract

The results of experimental studies of the spatial characteristics of multiple filamentation terawatt femtosecond Ti:Salaser in water are presented. With an increase in initial power laser pulses increases the number of filaments, the length of the field is increased filamentation and reducing the length of the filaments have been shown. The distribution of the filaments in the longitudinal direction of the field of multiple filamentation has a maximum cross-sectional filament is shifted from the center to the periphery of the beam at the end region of filamentation. The minimum diameter of the beam on the track corresponds to the position of the maximum number of filaments. After the point of maximum impulse essentially loses energy in the initial direction of propagation. Upon reaching the pulse power 2 10⁴ P_cr of multiple filamentation area is formed of a hollow cone, the apex directed to the radiation source.

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D. V. Apeksimov, O. A. Bukin, S. S. Golik, A. A. Zemlyanov, A. M. Kabanov, O. I. Kuchinskaya, A. Yu. Mayor, G. G. Matvienko, A. V. Petrov, and E. B. Sokolova "Filamentation of collimated Ti:sapphire-laser pulses in water", Proc. SPIE 9810, International Conference on Atomic and Molecular Pulsed Lasers XII, 98100I (15 December 2015); https://doi.org/10.1117/12.2220772

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