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Wave kinetic treatment of forward four-wave stimulated scattering instabilities

Published online by Cambridge University Press:  29 November 2005

R. BINGHAM ,
L. O. SILVA ,
R. M. G. M. TRINES ,
J. T. MENDONÇA ,
P. K. SHUKLA ,
W. B. MORI  and
R. A. CAIRNS
R. BINGHAM
Affiliation:
Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 OQX also at Department of Physics, University of Strathclyde, Glasgow, Scotland, G4 ONG ([email protected])
L. O. SILVA
Affiliation:
GoLP, Centro de Fisica de Plasmas, Instituto Superior Tecnico, 1096 Lisboa Codex, Portugal
R. M. G. M. TRINES
Affiliation:
Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX
J. T. MENDONÇA
Affiliation:
Electrodinamica, Instituto Superior Tecnico, Lisboa 1096 Codex, Portugal
P. K. SHUKLA
Affiliation:
Institut für Theoretische Physik IV, Ruhr-Universität Bochum, D-44780 Bochum, Germany
W. B. MORI
Affiliation:
University of California, Los Angeles (UCLA), CA 90095-1547,USA
R. A. CAIRNS
Affiliation:
St Andrews Department of Mathematics and Computational Sciences, St Andrews, Fife, Scotland KY16 9SS
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Abstract

Photon kinetic theory provides a framework for the study of intense electromagnetic fields interacting with underdense plasmas. It is particularly useful when studying forward scattering four-wave modulational type instabilities. The most powerful features are its simplicity and its strong connection with particle beams, and the natural way in which broadband and angular spread effects can be included in the formalism. In this paper we derive the dispersion equations describing four-wave stimulated Raman and Brillouin scattering and Langmuir wave modulational instability for induced spatially incoherent pump waves.

Type
Papers
Information
Journal of Plasma Physics , Volume 71 , Issue 6 , December 2005 , pp. 899 - 904
Copyright
2005 Cambridge University Press

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