OPTOELECTRONIC MODULATION OF A LASER INTERFEROMETER IN THE INFRARED FOR ACCURATE ELECTRON-DENSITY VARIATION MEASUREMENTS

被引：1

作者：

LESAGE, A

RICHOU, J

CHARIL, P

COMBIER, M

LEBRUN, JL

机构：

[1] D.E.P.E.G. Observatoire de Meudon

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1979年 / 50卷 / 10期

关键词：

D O I：

10.1063/1.1135701

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

An improved method for high-electron-density (1017 cm -3) measurement in a shock-generated plasma is described. A laser interferometer operated at 3.39 μm is regularly modulated (1 MHz) by a LiNbO3 electro-optical crystal. Thus electron-density variations of 8×1015 cm-3 μs-1 and fluctuation of 8×1014 cm-3 can be simultaneously and accurately measured in a 4×4-cm conventional shock tube. Experimental results in reflected shock waves are presented.

引用

页码：1306 / 1308

页数：3

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