碱土金属氟化物折射率的温度依赖性。

Temperature dependence of the refractive index of alkaline earth fluorides.

作者信息

Lipson H G, Tsay Y F, Bendow B, Ligor P A

出版信息

Appl Opt. 1976 Oct 1;15(10):2352-4. doi: 10.1364/AO.15.002352.

DOI:10.1364/AO.15.002352

PMID:20165399

Abstract

The temperature coefficient of the refractive index dn/dT of CaF(2), SrF(2), and BaF(2) single crystals is measured by a laser interferometric technique at a number of frequencies over temperatures ranging from 20 degrees C to 85 degrees C. Although dn/dT is found to display little dispersion between 0.6328 microm and 3.39 mum, its magnitude shows a slight increase with temperature. A possible origin of the latter effect is discussed.

摘要

采用激光干涉测量技术，在20℃至85℃的温度范围内，于多个频率下测量了CaF₂、SrF₂和BaF₂单晶的折射率温度系数dn/dT。尽管发现dn/dT在0.6328微米至3.39微米之间几乎没有色散，但其大小随温度略有增加。讨论了后一种效应可能的起源。