Dependence of spectroscopic properties on doping content and temperature of bismuth-doped lanthanum aluminosilicate glass  

作　　者：钱敏 程继萌 胡丽丽 

机构地区：[1]Key Laboratory of Materials for High Power Laser,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences [2]Graduate University of Chinese Academy of Sciences

出　　处：《Chinese Optics Letters》2012年第11期60-64,共5页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.60937003 and 61111120100)

摘　　要：The effects of bismuth doping content and temperature on the absorption property and near-infrared （NIR） luminescence of Bi-doped La2O3-Al2O3-SiO2 （LAS） glasses are presented. The emission intensity reaches the maximum when the Bi2O3 content in 3.0Bi-LAS is 1.83%. The emission spectra reach their peaks at 1 190 and 1 117 nm, with full-width at half-maximum （FWHM） values of 330 and 228 nm under 500 and 700-nm excitations, respectively. As the Bi203 content increases, the peak wavelengths and FWHMs of emission bands increase, but their lifetimes decrease. The lifetime of 2.0Bi-LAS is 460 μs at 9 K, and is almost temperature independent until 350 K. The NIR emission of Bi in the system has strong resistance to thermal quenching from 9 to 350 K.The effects of bismuth doping content and temperature on the absorption property and near-infrared （NIR） luminescence of Bi-doped La2O3-Al2O3-SiO2 （LAS） glasses are presented. The emission intensity reaches the maximum when the Bi2O3 content in 3.0Bi-LAS is 1.83%. The emission spectra reach their peaks at 1 190 and 1 117 nm, with full-width at half-maximum （FWHM） values of 330 and 228 nm under 500 and 700-nm excitations, respectively. As the Bi203 content increases, the peak wavelengths and FWHMs of emission bands increase, but their lifetimes decrease. The lifetime of 2.0Bi-LAS is 460 μs at 9 K, and is almost temperature independent until 350 K. The NIR emission of Bi in the system has strong resistance to thermal quenching from 9 to 350 K.

关 键 词：ALUMINOSILICATES Emission spectroscopy Glass Infrared devices Lanthanum oxides 

分 类 号：TQ171.1[化学工程—玻璃工业]