Nonlinear Optical Properties in Bi_2O_3-B_2O_3-SiO_2 Glasses  

作　　者：聂秋华 陈燕飞 

机构地区：[1]Faculty of Information Science and Engineering,The State Key Laboratory Base of Novel Functional Materials and Preparation Science,Ningbo University

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2007年第B12期806-808,共3页武汉理工大学学报（材料科学英文版）

基　　金：Supported by the National Natural Science Foundation of China(No.60677015);the Science and Technology Department of Zhejiang Province (No.20061664);the Natural Science Foundation of Ningbo (No.2006A610020)

摘　　要：A series of bismuth borate silica glasses were prepared and their densities, linear refractive indices and transmission spectra were measured. The optical gaps Eopt were obtained from the extrapolation of the linear portions to zero absorption. A decrease in the value of Eopt with increasing bismuth content may be explained by suggesting that the non-bridging oxygen ion content increases .It was found that high refractive index and narrow bandgap could lead into high third-order optical nonlinearity.A series of bismuth borate silica glasses were prepared and their densities, linear refractive indices and transmission spectra were measured. The optical gaps Eopt were obtained from the extrapolation of the linear portions to zero absorption. A decrease in the value of Eopt with increasing bismuth content may be explained by suggesting that the non-bridging oxygen ion content increases .It was found that high refractive index and narrow bandgap could lead into high third-order optical nonlinearity.

关 键 词：optical band gap optical nonlinearity bismuth oxide 

分 类 号：TQ171.11[化学工程—玻璃工业]