Phys. Rev. Lett. 84, 3081–3084 (2000)

Nonlinear Theory of Nonparaxial Laser Pulse Propagation in Plasma Channels

Abstract

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E. Esarey¹, C. B. Schroeder^1,2, B. A. Shadwick^1,2, J. S. Wurtele^1,2, and W. P. Leemans¹
¹Center for Beam Physics, Ernest Orlando Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720
²Department of Physics, University of California at Berkeley, Berkeley, California 94720

Received 21 July 1999; published in the issue dated 3 April 2000

Nonparaxial propagation of ultrashort, high-power laser pulses in plasma channels is examined. In the adiabatic limit, pulse energy conservation, nonlinear group velocity, damped betatron oscillations, self-steepening, self-phase modulation, and shock formation are analyzed. In the nonadiabatic limit, the coupling of forward Raman scattering (FRS) and the self-modulation instability (SMI) is analyzed and growth rates are derived, including regimes of reduced growth. The SMI is found to dominate FRS in most regimes of interest.

URL:

http://link.aps.org/doi/10.1103/PhysRevLett.84.3081

DOI:

10.1103/PhysRevLett.84.3081

PACS:

52.40.Nk, 41.75.Jv, 52.35.Mw, 52.75.Di

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Phys. Rev. Lett. 84, 3081–3084 (2000)

Nonlinear Theory of Nonparaxial Laser Pulse Propagation in Plasma Channels