MEASUREMENTS OF PLASMA OPACITY FROM LASER-PRODUCED OPTICALLY THIN STRONGLY COUPLED PLASMAS

被引：28

作者：

MOSTOVYCH, AN

KEARNEY, KJ

STAMPER, JA

SCHMITT, AJ

机构：

[1] U.S. Naval Research Laboratory

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 66卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.66.612

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new technique for producing dense (10(20) cm-3), low-temperature (2-6 eV), optically thin, and well characterized laser-produced plasmas is used to measure, for the first time, the inverse bremsstrahlung absorption and the Coulomb logarithm at 0.5-mu-m in a strongly coupled plasma. Extrapolations of the standard high-frequency calculations of inverse bremsstrahlung absorption underestimate the absorption in this regime by a factor of 2 or more, whereas calculations based on strongly coupled plasma theory and static classical theory agree with the measurements.

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页码：612 / 615

页数：4

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