Strongly coupled stimulated Raman backscatter from subpicosecond laser-plasma interactions

Journal Article · Mon Jul 20 04:00:00 EDT 1992 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.69.442· OSTI ID:7034205

Darrow, C B; Coverdale, C; Perry, M D ^[1]; Mori, W B; Clayton, C; Marsh, K; Joshi, C ^[2]

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1. Lawrence Livermore National Laboratory, Box 808, Livermore, California 94550 (United States)
2. Department of Electrical Engineering, University of California, Los Angeles, California 90024 (United States)

We have observed strongly coupled stimulated Raman backscatter from the interaction of an intense, subpicosecond laser with an underdense plasma. The strongly coupled backscatter spectra have widths greater than the plasma frequency, extend to the blue side of the laser frequency, and at the highest densities, are shifted by less than {omega}{sub {ital p}}. These observations are consistent with the predictions of a strongly coupled Raman theory, appropriately modified for short laser pulses.

• DOE Contract Number: AS03-83ER40120; FG03-91ER12114
• OSTI ID: 7034205
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 69:3; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700350* -- Plasma Production
Heating
Current Drive
& Interactions-- (1992-)
BACKSCATTERING
COHERENT SCATTERING
COLD PLASMA
COUPLING
DATA
DISPERSION RELATIONS
EXPERIMENTAL DATA
INFORMATION
LASER-PRODUCED PLASMA
NONLINEAR PROBLEMS
NUMERICAL DATA
NUMERICAL SOLUTION
PLASMA
PULSES
RAMAN EFFECT
SCATTERING
SPECTRAL SHIFT
THEORETICAL DATA