Stimulated Raman scattering in a plasma channel

Journal Article · Sun Sep 01 04:00:00 EDT 1996 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.871617· OSTI ID:286959

Liu, C S; Tripathi, V K ^[1]

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1. Institute for Plasma Research, University of Maryland, College Park, Maryland 20742 (United States)

An intense laser beam propagating in a low-density plasma channel undergoes stimulated Raman forward scattering, producing a plasma wave and two electromagnetic sideband waves. The electromagnetic waves are localized within a width {approximately}({ital ca}/{omega}{sub {ital p}0}){sup 1/2}, where {ital a} is the radius of the channel, {omega}{sub {ital p}0} is the plasma frequency on the axis of the channel, and {ital c} is the velocity of light, whereas the localization of the plasma wave is dependent on the growth rate of the Raman process. The localization effects reduce the region of interaction and the growth rate. At moderate intensities the growth rate scales as 2/3 power of intensity, however, at higher intensities it varies less rapidly. {copyright} {ital 1996 American Institute of Physics.}

• OSTI ID: 286959
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 9 Vol. 3; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BEAM-PLASMA SYSTEMS
COLD PLASMA
FILAMENTATION INSTABILITIES
INSTABILITY GROWTH RATES
LASER RADIATION
LIGHT SCATTERING
PLASMA WAVES
RAMAN EFFECT