Interferometric measurement of the refractive-index gradient distribution in gradient-index optical blanks

被引：10
|
作者：
Gerasimova, LA
机构：
[1] The St. Petersburg Institute of Fine Mechanics and Optic, St. Petersburg, 197101
来源：
APPLIED OPTICS | 1996年 / 35卷 / 16期
关键词：
gradient index; optical testing; interferometry; nondestructive testing; refractometry; optical properties; index of refraction;
D O I：
10.1364/AO.35.002997
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Anew interferometric method for measuring the refractive-index distribution in a plane-parallel section cut from a gradient-index lens blank is described. A standard double-pass interferometric scheme modified to provide a single pass of the beam through the investigated gradient-index sample is used. The two-dimensional variation of the refractive index in dimensions transverse to the sample surface is measured with an accuracy of better than 1 x 10(-4). (C) 1996 Optical Society of America
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页码：2997 / 3001
页数：5
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