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Theory of Raman sidescatter from a magnetized plasma

Published online by Cambridge University Press:  13 March 2009

H. C. Barr
Affiliation:
University of Wales, U.C.N.W., Bangor LL57 2UW, Wales
T. J. M. Boyd
Affiliation:
University of Wales, U.C.N.W., Bangor LL57 2UW, Wales
R. Rankin
Affiliation:
University of Wales, U.C.N.W., Bangor LL57 2UW, Wales

Abstract

The effects of a d.c. magnetic field on stimulated Raman sidescatter from laser-produced plasmas is studied. For exact sidescatter along the magnetic field, the Raman instability separates into two distinct decays in which the scattered light is either a right (RHCP) or left (LHCP) circularly polarized electromagnetic wave. Growth rates of the instabilities can be enhanced in the former case but are diminished in the latter. The magnetic field induced effects are greatest near the quarter critical density where frequency shifts can be especially significant, being equal to ± ¼Ωc for decay into RHCP and LHCP waves, respectively.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1984

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