Self-Organized Bursts of Coherent Stimulated Raman Scattering and Hot Electron Transport in Speckled Laser Plasma Media

被引：34

作者：

Yin, L. ^{[1
]}

Albright, B. J. ^{[1
]}

Rose, H. A. ^{[1
]}

Bowers, K. J. ^{[1
]}

Bergen, B. ^{[1
]}

Kirkwood, R. K. ^{[2
]}

机构：

[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

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

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 24期

关键词：

LANGMUIR;

D O I：

10.1103/PhysRevLett.108.245004

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Nonlinear electron trapping physics governs the onset and saturation of stimulated Raman scattering (SRS) in laser beams with many speckles. Hot electrons from intense speckles, produced during SRS daughter electron-plasma-wave bowing and filamentation, seed and enhance the growth of SRS in neighboring speckles by reducing Landau damping. Trapping-induced nonlinearity and speckle interaction through transport of hot electrons and back- and sidescattered SRS waves enable the system of speckles to self-organize and exhibit coherent, sub-ps SRS bursts with more than 100% instantaneous reflectivity, consistent with a SRS transverse coherence width much larger than a speckle width.

引用

页数：5

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