Consequence of filamentation on stimulated Raman scattering
- 1 December 1986
- journal article
- research article
- Published by AIP Publishing in Physics of Fluids
- Vol. 29 (12) , 4188-4191
- https://doi.org/10.1063/1.865710
Abstract
In a plasma with long density scale length, a laser beam breaks up into a number of filaments, each having a size a∼c/ωp. The process of stimulated Raman scattering in these filaments involves a backscattered light wave of radial extent ∼a and a Langmuir wave of extent b∼(aλD)1/2≪a. The strong localization of the interaction region tends to severely suppress the growth rate. However, the filamentation‐induced enhancement of pump intensity opposes this effect. At power densities of a few times 1014 W/cm2 at 1 μ filamentation does not seem to have a strong effect on stimulated Raman scattering.Keywords
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