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Regularities of nanosecond laser filamentation in the visible and near IR range of waverange (532 and 1562 nm) in a medium with strong optical nonlinearity
Author(s): D. V. Apeksimov; P. A. Babushkin; A. A. Zemlyanov; Al. A. Zemlyanov; A. M. Kabanov; O. I. Kuchinskaya; G. G. Matvienko; A. V. Petrov; V. K. Oshlakov; O. A. Romanovsky; S. A. Sadovnikov; S. V. Yakovlev
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Paper Abstract

The results of experimental studies of filamentation of focused laser pulses of nanosecond megawatt duration in a medium with strong cubic nonlinearity are presented. It was shown that multiple small-scale beam self-focusing is observed, the nonlinear focus is much closer to the source than the geometric one, and this distance increases with an increase in the pulse energy (power). Long tracks are observed that are uncharacteristic of linear spatial focusing.

Paper Details

Date Published: 11 December 2019
PDF: 4 pages
Proc. SPIE 11322, XIV International Conference on Pulsed Lasers and Laser Applications, 113220W (11 December 2019); doi: 10.1117/12.2555278
Show Author Affiliations
D. V. Apeksimov, Institute of Atmospheric Optics (Russian Federation)
P. A. Babushkin, Institute of Atmospheric Optics (Russian Federation)
A. A. Zemlyanov, Institute of Atmospheric Optics (Russian Federation)
Al. A. Zemlyanov, Institute of Atmospheric Optics (Russian Federation)
A. M. Kabanov, Institute of Atmospheric Optics (Russian Federation)
O. I. Kuchinskaya, Institute of Atmospheric Optics (Russian Federation)
G. G. Matvienko, Institute of Atmospheric Optics (Russian Federation)
A. V. Petrov, Institute of Atmospheric Optics (Russian Federation)
V. K. Oshlakov, Institute of Atmospheric Optics (Russian Federation)
O. A. Romanovsky, Institute of Atmospheric Optics (Russian Federation)
S. A. Sadovnikov, Institute of Atmospheric Optics (Russian Federation)
S. V. Yakovlev, Institute of Atmospheric Optics (Russian Federation)


Published in SPIE Proceedings Vol. 11322:
XIV International Conference on Pulsed Lasers and Laser Applications
Victor F. Tarasenko; Anton V. Klimkin; Maxim V. Trigub, Editor(s)

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