渐变折射率光学坯料中折射率梯度分布的干涉测量。

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

作者信息

Gerasimova L A

出版信息

Appl Opt. 1996 Jun 1;35(16):2997-3001. doi: 10.1364/AO.35.002997.

DOI:10.1364/AO.35.002997

Abstract

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 × 10(-4).

摘要

描述了一种用于测量从梯度折射率透镜毛坯切出的平行平面截面中折射率分布的新干涉测量方法。使用了一种经过改进的标准双程干涉测量方案，以使光束单次穿过被研究的梯度折射率样品。测量了样品表面横向尺寸方向上折射率的二维变化，精度优于1×10(-4)。