GRATING INTERFEROMETER WITH EXTREMELY HIGH-STABILITY, SUITABLE FOR MEASURING SMALL REFRACTIVE-INDEX CHANGES

被引：21

作者：

BARNES, TH ^{[1
]}

MATSUMOTO, K ^{[1
]}

EIJU, T ^{[1
]}

MATSUDA, K ^{[1
]}

OOYAMA, N ^{[1
]}

机构：

[1] CITIZEN WATCH CO LTD,TECH LAB,TOKOROZAWA,SAITAMA 359,JAPAN

来源：

APPLIED OPTICS | 1991年 / 30卷 / 07期

关键词：

D O I：

10.1364/AO.30.000745

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We describe here a grating interferometer with extremely high stability and which can be used as a differential refractometer. The instrument uses heterodyne techniques to achieve high sensitivity. We present an analysis of the operation of the system and results which show that it has a long term stability of the order of 1/1500 wavelength over 2 h.

引用

页码：745 / 751

页数：7

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