Abstract

The generation of filaments when a laser pulse propagates in the atmospheric aerosol is numerically investigated. It is shown that interference intensity maxima in high-power pulses can become filament-generation centers when radiation is coherently scattered at aerosol particles. The extent to which the particles affect the generation of filaments in this case substantially depends on the particle size and the peak pulse power. A numerical analysis is carried out on the basis of a stratified model in which nonlinear-optical interaction of laser radiation with a disperse medium is represented as coherent scattering at a sequence of statistically independent "aerosol" screens, between which self-focusing occurs in a nonturbid air medium.

Scattering of aerosol particles by a Hermite–Gaussian beam in marine atmosphere

Qingqing Huang, Mingjian Cheng, Lixin Guo, Jiangting Li, Xu Yan, and Songhua Liu
Appl. Opt. 56(19) 5329-5335 (2017)

Physics and applications of atmospheric nonlinear optics and filamentation

Jérôme Kasparian and Jean-Pierre Wolf
Opt. Express 16(1) 466-493 (2008)

Range of multiple filamentation of a terawatt-power large-aperture KrF laser beam in atmospheric air

Vladimir Zvorykin, Andrey Ionin, Daria Mokrousova, Leonid Seleznev, Igor’ Smetanin, Elena Sunchugasheva, Nikolai Ustinovskii, and Alexey Shutov
J. Opt. Soc. Am. B 36(10) G25-G32 (2019)

Parabolic trajectory of femtosecond laser filaments generated by accelerating parabolic beams in air

Yuze Hu and Jinsong Nie
J. Opt. Soc. Am. B 34(4) 795-800 (2017)

Laser filaments generated and transmitted in highly turbulent air

R. Ackermann, G. Méjean, J. Kasparian, J. Yu, E. Salmon, and J.-P. Wolf
Opt. Lett. 31(1) 86-88 (2006)