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

Authors

  • A. Paknezhad

Keywords:

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

Abstract

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.

References

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.

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Published

2014-08-10

Issue

Vol. 1 No. 3 (2014)

Section

Articles

License

Copyright (c) 2014 A. Paknezhad

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