无机材料学报

• 研究论文 • 上一篇    下一篇

TeO2-ZnCl2-BaO-NaF玻璃系统的结构及中红外透过特性的研究

吴家禄1,2, 张军杰1, 赖杨琼1,2, 胡丽丽1, 姜中宏1   

  1. 1. 中国科学院上海光学精密机械研究所, 上海 201800;2. 中国科学院研究生院, 北京 100049

  • 收稿日期:2006-03-14 修回日期:2006-05-08 出版日期:2007-03-20 网络出版日期:2007-03-20

Properties of Structure and Mid-infrared Transmission in TeO2-ZnCl2-BaO-NaF Glass System

WU Jia-Lu 1,2, ZHANG Jun-Jie1, LAI Yang-Qiong 1,2, HU Li-Li1, JIANG Zhong-Hong1   

  1. 1. Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China; 2. Graduate University of the Chinese Academy of Sciences, Beijing 100049, China
  • Received:2006-03-14 Revised:2006-05-08 Published:2007-03-20 Online:2007-03-20

摘要: 制备了一种新型的氧卤碲酸盐玻璃: (80-x)TeO2-15ZnCl2-xBaO-5NaF(x=30、20、10、0mol%), 对玻璃的机械强度、热稳定性、拉曼光谱、紫外吸收光谱、红外透过光谱等特性进行了研究. 通过拉曼光谱分析研究了玻璃组分含量的变化对玻璃结构和红外透过性能的影响. 结果表明, 随着BaO含量的增加, 玻璃在红外波段透过率显著增加, 并且红外透过截止波长向长波方向移动, 本文对这一实验结果进行了机理性的研究探讨. 同时, 通过在熔制过程中通入高纯O2, 以及引入适量的卤化物有效地除去玻璃中的[OH]基团, 使玻璃的红外透过性能得到进一步的提高. 这种新型的氧卤碲酸盐玻璃在中红外区域有较高的透过(≥80%), 中红外波段透过截止波长达6.5μm, 是一种红外透过性能优良的光学玻璃材料.

关键词: 氧卤碲酸盐玻璃, 红外透过, 拉曼光谱

Abstract: Oxyhalide tellurite glasses: (80-x)TeO2-15ZnCl2-xBaO-5NaF(x=30,20,10,0mol%) were prepared. The mechanical strength performance, thermal properties, Raman spectra, UV absorption spectra and Infrared transmission spectra of the samples were investigated. The effects of composition content change on the structure and infrared transmission properties of glasses were investigated by means of Raman scattering. The results show that the transmission in mid-infrared region significantly increases and the IR cut-off shifts towards longer wavelength with increasing BaO, the mechanism was also discussed. The addition of halide to the glasses and the treatment with pure O2 during melting are useful for the decrease of OH-1 absorption bands, meanwhile the infrared transmittance is increased. The presented oxyhalide tellurite glass is a kind of optical material with high infrared transmission. It exhibits a high transmittance (≥80%) in the mid-infrared regions and possesses an infrared cut-off edge up to 6.5μm.

Key words: oxyhalide tellurite glass, infrared transmission, Raman spectra

中图分类号: