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Effect of chirping on the intensity profile and growth rate of modulation instability of a laser pulse propagating in plasma

Published online by Cambridge University Press:  02 June 2011

Rohit K. Mishra
Affiliation:
Department of Physics, University of Lucknow, Lucknow, India
Pallavi Jha*
Affiliation:
Department of Physics, University of Lucknow, Lucknow, India
*
Address correspondence and reprint requests to: Pallavi Jha, Department of Physics, University of Lucknow, Lucknow 226007, India. E-mail: [email protected]

Abstract

This paper deals with the analytical study of the effect of chirping of a laser pulse on its intensity profile, as it propagates in plasma. Considering a matched laser beam, graphical analysis of the intensity distribution across the chirped laser pulse and growth of modulation instability has been presented. Further, considering finite pulse effects to be a perturbation, the growth rate of modulation instability of the chirped laser pulse is evaluated and compared with that obtained due to an unchirped pulse.

Type
Research Article
Copyright
Copyright © Cambridge University Press 2011

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