Features of laser air filamentation at aberration focusing

N. G. Ivanov; V. F. Losev Sr.; D. M. Lubenko Sr.; V. E. Prokop'ev Sr.

doi:10.1117/12.2302696

16 April 2018 Features of laser air filamentation at aberration focusing

N. G. Ivanov, V. F. Losev Sr., D. M. Lubenko Sr., V. E. Prokop'ev Sr.

Proceedings Volume 10614, International Conference on Atomic and Molecular Pulsed Lasers XIII; 106141D (2018) https://doi.org/10.1117/12.2302696
Event: XIII International Conference on Atomic and Molecular Pulsed Lasers, 2017, Tomsk, Russia

Abstract

The effect of astigmatism on laser air filamentation was studied numerically and experimentally. Limited supply of energy to the filament is shown to be the main feature of aberrational focusing, which facilitated the organization of quasi-solitons in the post-filament region. Quasi-solitons are realized due to the balance between linear diffraction and Kerr nonlinearity in the presence of background environment around zones with increased intensity. A highly directional SC of visible light is formed outside the visible filament zone in the resulting spatial quasi-solitons.

Citation Download Citation

N. G. Ivanov, V. F. Losev Sr., D. M. Lubenko Sr., and V. E. Prokop'ev Sr. "Features of laser air filamentation at aberration focusing", Proc. SPIE 10614, International Conference on Atomic and Molecular Pulsed Lasers XIII, 106141D (16 April 2018); https://doi.org/10.1117/12.2302696

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