Control of 2ω (527 nm) stimulated Raman scattering in a steep density gradient plasma

被引：8

作者：

Moody, J. D. ^{[1
]}

Divol, L. ^{[1
]}

Froula, D. H. ^{[1
]}

Glenzer, S. H. ^{[1
]}

Gregori, G. ^{[1
]}

Kirkwood, R. K. ^{[1
]}

Mackinnon, A. ^{[1
]}

Meezan, N. ^{[1
]}

Niemann, C. ^{[1
]}

Suter, L. J. ^{[1
]}

Bahr, R. ^{[2
]}

Seka, W. ^{[2
]}

机构：

[1] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[2] Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA

来源：

PHYSICS OF PLASMAS | 2009年 / 16卷 / 06期

关键词：

plasma density; plasma light propagation; plasma simulation; polarisation; Raman spectra; NATIONAL-IGNITION-FACILITY; INERTIAL CONFINEMENT FUSION; SCALE-LENGTH PLASMAS; INHOMOGENEOUS COLLISIONAL PLASMAS; EXPLODING FOIL PLASMAS; RANDOMIZED LASER-BEAM; BRILLOUIN-SCATTERING; PHASE PLATES; TARGETS; LIGHT;

D O I：

10.1063/1.3143028

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Experiments show that application of laser smoothing schemes including smoothing by spectral dispersion and polarization smoothing effectively suppresses stimulated Raman scattering from a 2 omega (527 nm) laser beam in a low average-gain plasma with a steep density gradient. Full-wave simulations reproduce the observed trends in the data and show that the scattering reduction is an indirect result of suppressing active filamentation.

引用

页数：6

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