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Stimulated Raman scattering of ultra intense hollow Gaussian beam in relativistic plasma

Published online by Cambridge University Press:  17 June 2015

Prerana Sharma
Prerana Sharma*
Affiliation:
Physics Department, Ujjain Engineering College, Ujjain, India
*
Address correspondence and reprint requests to: Prerana Sharma, Physics Department, Ujjain Engineering College, Ujjain, M. P. 456010, India. E-mail: [email protected]
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Abstract

Effect of relativistic nonlinearity on stimulated Raman scattering (SRS) of laser beam propagating carrying null intensity in center [hollow Gaussian beam (HGB)] is studied in collisionless plasma. The construction of the equations is done employing the fluid theory which is developed with partial differential equation and Maxwell's equations. The phenomenon of SRS is shown along with the excitation of seed plasma wave considering relativistic nonlinearity. The power of plasma wave is observed for higher order of HGB. The Raman back reflectivity is studied numerically for various orders of hollow Gaussian laser beam (HGLB) and the numerical analysis shows that these parameters play vital role on reflectivity characteristics. It is observed that the Raman back reflectivity is less for the higher order of HGLB.

Keywords

Hollow Gaussian beamRelativistic nonlinearityStimulated Raman scattering
Type
Research Article
Information
Laser and Particle Beams , Volume 33 , Issue 3 , September 2015 , pp. 489 - 498
Copyright
Copyright © Cambridge University Press 2015 

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