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.

引用

页数：4

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