用于测量玻璃绝对折射率的带棱镜对的高精度干涉仪。

High-accuracy interferometer with a prism pair for measurement of the absolute refractive index of glass.

作者信息

Hori Yasuaki, Hirai Akiko, Minoshima Kaoru, Matsumoto Hirokazu

机构信息

National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki, 305-8563, Japan.

出版信息

Appl Opt. 2009 Apr 10;48(11):2045-50. doi: 10.1364/ao.48.002045.

DOI:10.1364/ao.48.002045

PMID:19363541

Abstract

We propose a variable-path interferometric technique for the measurement of the absolute refractive index of optical glasses. We use two interferometers to decide the ratio between changes in the optical path in a prism-shaped sample glass and in air resulting from displacement of the sample. The method allows precise measurements to be made without prior knowledge of the properties of the sample. The combined standard uncertainty of the proposed method is 1.6x10(-6).

摘要

我们提出了一种可变路径干涉测量技术，用于测量光学玻璃的绝对折射率。我们使用两台干涉仪来确定棱镜形样品玻璃和空气中由于样品位移而导致的光程变化之间的比率。该方法无需事先了解样品的特性即可进行精确测量。所提方法的合成标准不确定度为1.6×10⁻⁶ 。