Cyclic plasma shearing interferometry for temporal characterization of a laser-produced plasma

被引：2

作者：

Cobble, JA ^{[1
]}

Johnson, RP ^{[1
]}

Kurnit, NA ^{[1
]}

Montgomery, DS ^{[1
]}

Fernández, JC ^{[1
]}

机构：

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

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2002年 / 73卷 / 11期

关键词：

D O I：

10.1063/1.1512339

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A cyclic shearing interferometer has been employed to characterize a laser-produced plasma with 180 ps resolution. Counterpropagation maintains an equal path length for the probe and reference beams, and the shear is provided solely by the plasma, which appears within the circuit after the reference beam has passed the laser focal spot. The background is virtually fringe free because of the overlapping of the reference and probe beams so that analysis is simplified. The plasma, which is formed by a line focus, is seen to expand in a cylindrical manner away from the line focus with an exponential density profile. In addition, the interferometer shows evidence of a bow shock when an interaction beam is introduced into the plasma parallel to the direction of the line focus. (C) 2002 American Institute of Physics.

引用

页码：3813 / 3817

页数：5

共 16 条

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ABRAMOWITZ M, 1964, NBS APPL MATH SER, V55, P376

[2]

ALPHER RA, 1965, PLASMA DIAGNOSTIC TE, P477

[3] 4-FRAME HOLOGRAPHIC PROBING SYSTEM FOR PLASMA-DENSITY MEASUREMENT [J].