PTR微晶玻璃的光热敏性能  

Properties of photo-thermal-refractive glass

作　　者：任清[1] 陆敏[1] 邹快盛[1] 李玮楠[1] 张晓亮[2] 于凤霞[2] 

机构地区：[1]中国科学院西安光学精密机械研究所瞬态光学与光子技术国家重点实验室,陕西西安710119 [2]长春理工大学材料科学与工程学院,吉林长春130022

出　　处：《红外与激光工程》2010年第5期857-861,共5页Infrared and Laser Engineering

基　　金：国家自然科学基金资助项目(60808023)

摘　　要：采用高温熔融法制得光热敏折变微晶（PTR）基础玻璃。首先对PTR基础玻璃进行紫外曝光,然后进行热处理,观察玻璃颜色的变化,进而测试了玻璃的紫外-可见-近红外光的透过率谱和曝光部分的X射线衍射。利用实验所得结果分析了玻璃的光热敏机理和PTR玻璃的可工作波段。实验证明：PTR玻璃的工作窗口为400~2 800 nm;最佳曝光波长为305 nm;玻璃的微晶化可以通过控制曝光剂量和采用两步阶梯式热处理制度来实现;热处理后的析晶体为NaF晶体,由于晶体颗粒较小,玻璃对可见光不产生散射。Photo-thermal-refractive（PTR） glass is fabricated by high temperature melt process.PTR glass,a kind of sodium-zinc-aluminum-silicate glass doped with silver,cerium and fluorine,possesses both photosensitive and heat-sensitive characters.In the study,PTR glass was firstly exposed by ultraviolet light,and then after the heat treatment of the sample,the measurement of ultraviolet-visible-near infrared transmissivity spectrum and the X-ray diffraction of exposure part was performed.According to the results,the working window of PTR glass is between 400 nm and 2 800 nm.The best exposure wavelength of PTR glass is 305 nm.The micro-crystallization of PTR glass can be controlled by exposure dose and conditions of two stepped heat treatment.During the treatment processes mentioned above,NaF crystal was precipitated.Because crystal particles are very tiny,visible light is not scattered in the glass.

关 键 词：PTR玻璃 光热敏 曝光 热处理 

分 类 号：TQ171[化学工程—玻璃工业]