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Proceedings Paper

Theory and simulation of Raman scattering in intense short-pulse laser-plasma interactions
Author(s): Scott C. Wilks; William L. Kruer; A. B. Langdon; Peter A. Amendt; David C. Eder; Christopher J. Keane
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Paper Abstract

We report on the stimulated Raman scattering (SRS) that occurs when short (~ 50-100 femtoseconds), intense (I~2 x 1017 W/cm2) laser pulses are focused into a plasma, or a neutral gas which quickly becomes a plasma due to multiphoton ionization. Review of the usual SRS growth rates will be given, followed by a discussion on how this theory is modified for short pulses. It is found that for some recombination x-ray laser schemes employing short pulses, the Raman instability can potentially heat the electrons to levels that would greatly reduce the efficiency of such a device. However, there are areas in parameter space where the temperature of heated electrons can be kept to acceptable levels. One dimensional, relativistic, particle-in-cell (PlC) simulations are presented.

Paper Details

Date Published: 1 June 1991
PDF: 7 pages
Proc. SPIE 1413, Short-Pulse High-Intensity Lasers and Applications, (1 June 1991); doi: 10.1117/12.46145
Show Author Affiliations
Scott C. Wilks, Lawrence Livermore National Lab. (United States)
William L. Kruer, Lawrence Livermore National Lab. (United States)
A. B. Langdon, Lawrence Livermore National Lab. (United States)
Peter A. Amendt, Lawrence Livermore National Lab. (United States)
David C. Eder, Lawrence Livermore National Lab. (United States)
Christopher J. Keane, Lawrence Livermore National Lab. (United States)

Published in SPIE Proceedings Vol. 1413:
Short-Pulse High-Intensity Lasers and Applications
Hector A. Baldis, Editor(s)

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