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Proceedings Paper

Post-filamentation high-intensive light channels formation upon ultrashort laser pulses self-focusing in air
Author(s): Yu. E Geints; A. A. Ionin; D. V. Mokrousova; L. V. Seleznev; D. V. Sinitsyn; E. S. Sunchugasheva; A. A. Zemlyanov
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Paper Abstract

Experimental and theoretical study of the post-filamentation stage of focused high-power Ti:Sa laser pulses in air is presented. Angular divergence of the laser beam, as well as angular and spatial characteristics of specific spatially localized light structures, the post-filament channels (PFCs), under different initial focusing conditions and laser beam energy are investigated. We show that PFC angular divergence is always less than that of the whole laser beam and tends to decrease with laser pulse energy increase and beam focal length elongation.

Paper Details

Date Published: 13 January 2017
PDF: 5 pages
Proc. SPIE 10254, XXI International Symposium on High Power Laser Systems and Applications 2016, 102541F (13 January 2017); doi: 10.1117/12.2256006
Show Author Affiliations
Yu. E Geints, V.E. Zuev Institute of Atmospheric Optics (Russian Federation)
A. A. Ionin, P.N. Lebedev Physical Institute (Russian Federation)
D. V. Mokrousova, P.N. Lebedev Physical Institute (Russian Federation)
Moscow Institute of Physics and Technology (Russian Federation)
L. V. Seleznev, P.N. Lebedev Physical Institute (Russian Federation)
D. V. Sinitsyn, P.N. Lebedev Physical Institute (Russian Federation)
E. S. Sunchugasheva, P.N. Lebedev Physical Institute (Russian Federation)
Moscow Institute of Physics and Technology (Russian Federation)
A. A. Zemlyanov, V.E. Zuev Institute of Atmospheric Optics (Russian Federation)


Published in SPIE Proceedings Vol. 10254:
XXI International Symposium on High Power Laser Systems and Applications 2016
Dieter Schuoecker; Richard Majer; Julia Brunnbauer, Editor(s)

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