Effect of Third Harmonic Generation on the Growth Rate of Raman Forward Scattering of an X-mode Laser Pulse in Magnetized Cold Plasma

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  • A. Paknezhad

Klíčová slova:

third harmonic NRFS, X-mode laser pulse, upper-hybrid wave, growth rate

Abstrakt

Nonlinear Raman forward scattering (NRFS) in the propagation of an X-mode laser pulse in a magnetized
cold plasma channel is analyzed for the third harmonic scattered waves. 3rd harmonic nonlinear wave
equation is set up to obtain the coupling equations and dispersion relation of excited upper-hybrid wave.
Using Fourier transform and matching condition, the nonlinear growth rate of third harmonic NRFS is
analytically calculated. It is shown that unlike the fundamental NRFS, the growth rate of third harmonic
NRFS instability increases by increasing the external magnetic field.

Reference

Mori W B, Decker C D, Hinkel D E, Katsouleas T: Raman forward scattering of short-pulse high intensity lasers: Phys. Rev. Lett. 1994, 72, 10.

Hassoon H, Salih K H. and Tripathi V K: Stimulated Raman forward scattering of a laser in a plasma with transverse magnetic field: Phys. Scr. 2009, 80, 065501.

Paknezhad A: Nonlinear Raman forward scattering of a short laser pulse in a collisional transversely magnetized plasma: Phys. Plasmas. 2013, 20, 012110.

Paknezhad A: Third harmonic stimulated Raman backscattering of laser in a magnetizedplasma: Phys. Plasmas. 2013, 20, 092108.

Stahování

Publikováno

2014-08-10

Číslo

Vol 1 No 3 (2014)

Sekce

Articles

Licence

Copyright (c) 2014 A. Paknezhad

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