Pushing the limits of plasma length in inertial-fusion laser-plasma interaction experiments

被引：14
作者：
Froula, D. H. [1 ]
Divol, L. [1 ]
London, R. A. [1 ]
Michel, P. [1 ]
Berger, R. L. [1 ]
Meezan, N. B. [1 ]
Neumayer, P. [1 ]
Ross, J. S. [1 ]
Wallace, R. [1 ]
Glenzer, S. H. [1 ]
机构：
[1] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA
来源：
PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 01期
关键词：
D O I：
10.1103/PhysRevLett.100.015002
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We demonstrate laser beam propagation and low backscatter in laser produced hohlraum plasmas of ignition plasma length. At intensities I < 5x10(14) W cm(-2) greater than 80% of the energy in a blue (3 omega, 351 nm) laser is transmitted through a L=5-mm long, high-temperature (T-e=2.5 keV), high-density (n(e)=5x10(20) cm(-3)) plasma. These experiments show that the backscatter scales exponentially with plasma length which is consistent with linear theory. The backscatter calculated by a new steady state 3D laser-plasma interaction code developed for large ignition plasmas is in good agreement with the measurements.
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页数：4
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