REFRACTIVE-INDEX DISTRIBUTION MEASUREMENTS BY MEANS OF SPECTRALLY-RESOLVED WHITE-LIGHT INTERFEROMETRY

被引：20

作者：

GUERRERO, AL ^{[1
]}

SAINZ, C ^{[1
]}

PERRIN, H ^{[1
]}

CASTELL, R ^{[1
]}

CALATRONI, J ^{[1
]}

机构：

[1] UNIV METROPOLITANA,DEPT FIS,CARACAS 1070A,VENEZUELA

来源：

OPTICS AND LASER TECHNOLOGY | 1992年 / 24卷 / 06期

关键词：

REFRACTIVE INDEX; TRANSPARENT MEDIA; INTERFEROMETRY; SPECTRAL ANALYSIS;

D O I：

10.1016/0030-3992(92)90085-G

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A new procedure to measure the spatial distribution of the refractive index in transparent media is presented. It is based on the spectral analysis of optical interferograms obtained from a wide, continuous-spectrum light source. The meth,od yields fairly high precision (up to 10(-8)) in the measurements of local values of differential refractive index, DELTAn (DELTAn = n - n(ref)), along a line in the sample. By means of a CCD TV-camera linked to a microcomputer, fast recording and automatic data processing are achieved. As an application, we present an experimental study of a thermal gradient in a liquid sample.

引用

页码：333 / 339

页数：7