Filamentation of femtosecond Gaussian pulses with close-to-linear or -circular elliptical polarisation

Journal Article · Sun Feb 27 23:00:00 EST 2011 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2011V041N02ABEH014423· OSTI ID:21541781

Panov, N A; Kosyreva, O G; Savel'ev-Trofimov, Andrei B; Uryupina, D S; Perezhogin, I A; Makarov, Vladimir A ^[1]

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1. International Laser Center, M. V. Lomonosov Moscow State University, Moscow (Russian Federation)

A numerical investigation was made of the formation and development of filaments in the propagation of high-power femtosecond Gaussian laser pulses in argon, whose polarisation is close to the linear or circular one. Filaments produced by close-to-circularly polarised pulses were found to be more uniform, greater in diameter, and higher in intensity than the filaments produced by close-to-linearly polarised pulses. For incident pulses with a close-to-linear (circular) polarisation, the degree of ellipticity of the radiation on the axis of the resultant filament becomes equal to zero (unity) at the instant of the peak of the local intensity. (nonlinear optical phenomena)

• OSTI ID: 21541781
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 2 Vol. 41; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ARGON
ELEMENTS
FILAMENTS
FLUIDS
GASES
GAUSSIAN PROCESSES
NONLINEAR PROBLEMS
NONMETALS
POLARIZATION
PULSES
RARE GASES