Particle-in-cell simulations of Raman forward scattering from short-pulse high-intensity lasers

Journal Article · Tue Nov 01 04:00:00 EST 1994 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States)

DOI:https://doi.org/10.1103/PhysRevE.50.R3338· OSTI ID:7093241

Decker, C D; Mori, W B ^[1]; Katsouleas, T ^[2]

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1. Departments of Physics and Electrical Engineering, University of California at Los Angeles, Los Angeles, California 90024 (United States)
2. Department of Electrical Engineering, University of Southern California, Los Angeles, California 90089 (United States)

We present one- and two-dimensional particle-in-cell simulations of short-pulse ([tau][lt]1 ps) high-intensity ([ital I][le]10[sup 18] W/cm[sup 2]) laser propagation through an underdense plasma. The simulations model near-term experiments without the limitations of the fluid and quasistatic approximations. We find that Raman forward scattering plays a dominant role in the evolution of the pulse in distances less than a Rayleigh length. Raman forward scattering results in significant spectral cascading and energetic electron generation from wave breaking of the resulting plasma wave. Both of these effects should be useful as experimental diagnostics.

• DOE Contract Number: FG03-92ER40727; FG03-93ER40776
• OSTI ID: 7093241
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States), Journal Name: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States) Vol. 50:5; ISSN PLEEE8; ISSN 1063-651X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700350* -- Plasma Production
Heating
Current Drive
& Interactions-- (1992-)
ELECTROMAGNETIC RADIATION
IRRADIATION
LASER RADIATION
PLASMA SIMULATION
PLASMA WAVES
PULSED IRRADIATION
RADIATIONS
RAMAN EFFECT
SIMULATION
WAVE PROPAGATION