975nm脉冲激励下铋酸盐玻璃中铒离子荧光的动态响应  

Transient Response of Er^(3+) Fluorescence in Bismuth-based Glass under 975 nm-pulsed Excitation

作　　者：周亚训[1] 王大刚[1] 陈芬[1] 杨高波[1] 戴世勋[1] 

机构地区：[1]宁波大学信息科学与工程学院,浙江宁波315211

出　　处：《光电工程》2010年第3期99-104,共6页Opto-Electronic Engineering

基　　金：浙江省自然科学基金(Y107070);宁波大学王宽诚幸福基金资助项目

摘　　要：用高温熔融退火法制备了组分为Bi2O3-B2O3-SiO2掺铒铋酸盐玻璃,测试分析了铋酸盐玻璃中铒离子的光谱特性,着重研究了975nm脉冲泵浦光激励下1.5μm波段荧光的动态响应。研究表明,对应脉冲泵浦光上下边沿,铒离子荧光存在着一个上升和下降响应过程,响应速率取决于4I13/2能级Er3+离子荧光寿命。随着B2O3组分含量的提高,玻璃中OH基引起的能量传递导致Er3+离子荧光寿命相应减小,荧光响应随之相应加快。Er^3＋-doped bismuth-based glasses with the high-temperature melting and annealing method. The composition of Bi2O3-B2O3-Si2O were prepared by conventional 1.5 μm band spectroscopic properties of Er^3＋ were measured and analyzed, and the research focused on the transient response of 1.5 μm band fluorescence under the pulse excitation at 975 nm. The results show that there was a rise- and fall-response process of Er^3＋ fluorescence corresponding to the up and down-edge of 975 nm pulse, respectively, and the response rate is dependent on the lifetime of Er^3＋ at ^4I13/2 level. With the increase of Bi2O3 component content, the lifetime of Er^3＋ decreases resulting from the energy transfer aroused by OH groups in the glass, and the response becomes faster accordingly.

关 键 词：铋酸盐玻璃 光谱性质 1.5 μm波段荧光 动态响应 

分 类 号：TQ171[化学工程—玻璃工业]