MEASURING VIBRATION AMPLITUDES IN THE PICOMETER RANGE USING MOVING LIGHT GRATINGS IN PHOTOCONDUCTIVE GAAS-CR

被引：99

作者：

STEPANOV, SI ^{[1
]}

SOKOLOV, IA ^{[1
]}

TROFIMOV, GS ^{[1
]}

VLAD, VI ^{[1
]}

POPA, D ^{[1
]}

APOSTOL, I ^{[1
]}

机构：

[1] INST ATOM PHYS,R-76900 BUCHAREST,ROMANIA

来源：

OPTICS LETTERS | 1990年 / 15卷 / 21期

关键词：

D O I：

10.1364/OL.15.001239

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report the measurements of picometer vibration amplitudes produced by a piezo mirror in an interferometric setup, using a GaAs:Cr photoconductive device. The moving light fringes (gratings) induce in this new detector periodic photocurrents characterized by efficient suppression of the low-frequency drifts of the working point and low sensitivity to the amplitude laser noise. The optimum operation conditions of this system are also shown. © 1990 Optical Society of America.

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页码：1239 / 1241

页数：3

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