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Effect of pump depletion and self-focusing (hot spot) on stimulated Raman scattering in laser–plasma interaction

Published online by Cambridge University Press:  23 July 2001

SALEH T. MAHMOUD  and
R. P. SHARMA
SALEH T. MAHMOUD
Affiliation:
Centre for Energy Studies, IIT Delhi, New Delhi-110016, India
R. P. SHARMA
Affiliation:
Centre for Energy Studies, IIT Delhi, New Delhi-110016, India
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A three-dimensional study of the pump depletion and self-focusing (hot spot) effect on stimulated Raman scattering (SRS) reflectivity is presented within the paraxial-ray approximation. The reflectivity of SRS is observed to exhibit a maximum value in the case of optimum SRS gain with pump depletion. The reflectivity with pump depletion is less than without pump depletion and is the usual three-wave interaction case. The effect of plasma temperature on SRS reflectivity is also discussed.

Type
Research Article
Information
Journal of Plasma Physics , Volume 64 , Issue 5 , November 2000 , pp. 613 - 621
Copyright
© 2000 Cambridge University Press