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Phys. Rev. Lett. 65, 1753–1756 (1990)

Stabilization of relativistic self-focusing of intense subpicosecond ultraviolet pulses in plasmas

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A. B. Borisov, A. V. Borovskiy, V. V. Korobkin, A. M. Prokhorov, C. K. Rhodes, and O. B. Shiryaev
Laboratory for Computer Simulation, Reserach Computer Center, Moscow State University, Moscow 119899, U.S.S.R.
Coherent and Non-linear Optics Department, General Physics Institute, Academy of Sciences of the U.S.S.R., Moscow 117942, U.S.S.R.
Department of Physics, University of Illinois at Chicago, Chicago, Illinois 60680

Received 21 March 1990; published in the issue dated 1 October 1990

The characteristcs of relativistic propagation in plasmas of subpicosecond ultraviolet (248-nm) radiation are studied for both spatially homogeneous plasmas and plasma columns. It is established for the first time that the defocusing properties of the interaction can represent a dynamical mechanism stabilizing the mode of propagation against radial oscillations. The dependence of both quasistabilized modes and pulsing waveguide regimes on the initial transverse intensity distribution is examined and, for the latter, the locus of the first focus produced in a homogeneous plasma is calculated.

© 1990 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.65.1753
DOI:
10.1103/PhysRevLett.65.1753
PACS:
52.40.Db, 42.10.-s, 42.65.Jx