Ⅳ类石英玻璃光学均匀性影响因素研究  

Affecting Factors of Optical Homogeneity of Type Ⅳ Silica Glass

作　　者：袁晶 宋学富[1] 孙元成[1] 杜秀蓉[1] 张晓强[1] 钟利强[1] YUAN Jing;SONG Xuefu;SUN Yuancheng;DU Xiurong;ZHANG Xiaoqiang;ZHONG Liqiang(China Building Materials Academy,Beijing 100024,China)

机构地区：[1]中国建筑材料科学研究总院,北京100024

出　　处：《硅酸盐通报》2023年第7期2621-2628,共8页Bulletin of the Chinese Ceramic Society

摘　　要：Ⅳ类石英玻璃是一种重要的特种玻璃材料,在光学探测、惯性导航等领域内具有重要作用。光学均匀性是表征光学玻璃结构均匀性的一种重要方法,Ⅳ类石英玻璃的光学均匀性与硅氧网络结构分布一致性密切相关。本文通过四步法光学均匀性测试、紫外-可见-近红外光谱、红外反射光谱等方法,研究了羟基、金属杂质及氧缺陷的径向分布特点和硅氧键键角的径向变化,采用相关性分析研究了各影响因素对样品光学均匀性的影响。结果表明:表示玻璃光学均匀性的波前畸变t_(0)Δn沿玻璃半径先降低后升高;羟基的径向分布整体上与t_(0)Δn的径向变化相反,200 nm处透过率径向变化、硅氧键键角径向变化与t_(0)Δn的径向变化相近;羟基对Ⅳ类石英玻璃光学均匀性的影响较小,金属杂质、氧缺陷及硅氧键键角的径向变化是影响Ⅳ类石英玻璃光学均匀性的主要因素。Type Ⅳ silica glass is an important special glass material,which plays an important role in optical detection,inertial navigation and other fields.Optical homogeneity is an important way to characterize the structural homogeneity of optical glass,and the optical homogeneity of type Ⅳ silica glass is closely related to structural distribution consistency of silicon-oxygen network.In this paper,the radial distribution characteristics of hydroxyl,metal impurities and oxygen defects and the radial variations of silicon-oxygen bond angle were studied by four-step optical homogeneity test,ultraviolet-visible-near-infrared spectroscopy,infrared reflection spectroscopy,etc.And the influence of each affecting factor on optical homogeneity of sample was studied by correlation analysis.The results show that the wave aberrations t_(0)Δn,which indicates the optical homogeneity of glass,decreases first and then increases along the glass radius.The radial distribution of hydroxyl is opposite to t_(0)Δn radial variation as a whole.The radial variations of transmittance at 200 nm and silicon-oxygen bond angle are similar to t_(0)Δn radial variation.The influence of hydroxyl on optical homogeneity of type Ⅳ silica glass is small,and the radial variations of metal impurities,oxygen defects and silicon-oxygen bond angle are the main factors affecting the optical homogeneity of typeⅣsilica glass.

关 键 词：Ⅳ类石英玻璃 光学均匀性 径向变化 相关性分析 羟基 氧缺陷 硅氧键键角 

分 类 号：TQ171[化学工程—玻璃工业]