Self-Organization and Threshold of Stimulated Raman Scattering

被引：19

作者：

Benisti, Didier ^{[1
]}

Morice, Olivier ^{[1
]}

Gremillet, Laurent ^{[1
]}

Siminos, Evangelos ^{[1
]}

Strozzi, David J. ^{[2
]}

机构：

[1] CEA, DAM, DIF, F-91297 Arpajon, France

[2] Lawrence Livermore Natl Lab, AX Div, Livermore, CA 94550 USA

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 105卷 / 01期

关键词：

FUSION;

D O I：

10.1103/PhysRevLett.105.015001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We derive, both theoretically and using an envelope code, threshold intensities for stimulated Raman scattering, which compare well with results from Vlasov simulations. To do so, we account for the nonlinear decrease of Landau damping and for the detuning induced by both the nonlinear wave number shift delta k(p) and the frequency shift delta omega(p) of the plasma wave. In particular, we show that the effect of delta k(p) may cancel out that of delta omega(p), but only in that plasma region where the laser intensity decreases along the direction of propagation of the scattered wave. Elsewhere, delta k(p) enhances the detuning effect of delta omega(p).

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页数：4

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