1.前言红外光学材料是用来构成红外波段的各种光学元件的固体材料。按其功能分类,可分为红外透明材料、高折射率材料、低折射率材料、非线性光学材料、激光光学材料等。本文仅论述上述红外光学材料中最基本的红外透明材料,这种材料被广泛用做光学 1. Introduction Infrared optical materials are used to form the infrared band of a variety of optical components of solid materials. According to their functional classification, can be divided into infrared transparent materials, high refractive index materials, low refractive index materials, nonlinear optical materials, laser optical materials. This article deals only with the most basic infrared transparent materials of the above infrared optical materials, which are widely used as optical