Plasma channels in a filament of a femtosecond laser pulse focused by an axicon

Journal Article · Mon Jun 30 00:00:00 EDT 2014 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2014V044N06ABEH015452· OSTI ID:22395862

Chekalin, S V; Kompanets, V O ^[1]; Dokukina, A E; Smetanina, E O; Kandidov, V P ^[2]

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1. Institute of Spectroscopy, Russian Academy of Sciences, Troitsk, Moscow (Russian Federation)
2. Department of Physics, M.V. Lomonosov Moscow State University (Russian Federation)

We report the results of experimental and numerical investigation of the influence of the wavefront curvature of femtosecond light focused by an axicon on the length and position of plasma channels in the filament under conditions of normal and anomalous group velocity dispersion in fused silica. It is shown that a change in the wavefront curvature by a value much greater than the longitudinal dimensions of the filament noticeably changes the geometry of the plasma channel position. The role of axicon focusing for ordering multiple filamentation is studied experimentally. (extreme light fields and their applications)

• OSTI ID: 22395862
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 44, Issue 6; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
LASERS
OPTICAL DISPERSION
PLASMA
PULSES
SILICA