Second harmonic stimulated Raman scattering of laser radiation in a plasma

Author

Ramachandran, K.

Author_Institution

Dept. of Phys., Indian Inst. of Technol., Delhi, India

Volume

24

Issue

2

fYear

1996

fDate

4/1/1996 12:00:00 AM

Firstpage

487

Lastpage

489

Abstract

A high-power linearly polarized laser propagating through a plasma produces oscillatory electron velocity at the second harmonic due to-the ν&oarr;×B&oarr; force, This velocity couples a Langmuir wave (ω, k&oarr;) and an electromagnetic wave (ω₁, k&oarr;₁), where ω₁=ω-2ω₀, k-2k&oarr;₀ and ω₀, k&oarr;₀ are frequency and wavenumber of the laser pump, causing second harmonic Raman scattering. The growth rate is maximum for side scattering. This process can occur above the quarter critical density, unlike the first harmonic stimulated Raman scattering which occurs below the quarter critical density

Keywords

plasma Langmuir waves; plasma light propagation; plasma oscillations; stimulated Raman scattering; Langmuir wave; electromagnetic wave; laser radiation; linearly polarized laser propagation; oscillatory electron velocity; plasma; quarter critical density; second harmonic stimulated Raman scattering; Electromagnetic coupling; Electromagnetic propagation; Electromagnetic scattering; Electromagnetic wave polarization; Electrons; Frequency; Optical coupling; Optical propagation; Plasma waves; Raman scattering;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.510014

Filename

510014