掺镱铋酸盐玻璃近红外发光的温度特性  

Temperature Characteristics of Near-Infrared Luminescence of Yb-Doped Bismuth-Based Glasses

作　　者：程继萌[1] 李韦韦[1] 赵国营[1] 李顺光[1] 陈伟[1] 胡丽丽[1] Georges Boulon 

机构地区：[1]中国科学院上海光学精密机械研究所,上海201800 [2]Institute Light Matter,UMR5306 University of Lyonl-CNRS,University of Lyon,Bat.Kastler,69622 Villeurbanne cedex,France

出　　处：《中国激光》2013年第10期247-252,共6页Chinese Journal of Lasers

摘　　要：研究了组分为55Bi2O3-25B2O3-10SiO2-(10-x)Ga2O3-xYb2O3(x=0.5,2.0,5.0)掺镱铋酸盐玻璃在1μm近红外波段发光的温度特性。测定了9K低温到350K高温条件下975nm和1003nm主次荧光峰,它们的半峰全宽基本没有大的变化,表明铋酸盐玻璃基质对镱离子的非均匀加宽是谱线加宽的主要原因。另外,电子-声子耦合对镱离子荧光光谱和荧光寿命也有一定程度的影响。对于荧光寿命的温度特性,本身具有较大荧光俘获效应的镱离子的寿命受到明显影响,其中在高温区的影响比在低温区的更强。The temperature dependence of near-infrared around 1 μm emission properties of Yb-doped 55Bi203- 25B203-10SiO2-（10-x）Ga203-xYb2O3 （x = 0.5, 2.0, 5.0） glasses is investigated. Emission spectra, covering a major 975 nm fluorescence peak with a minor 1003 nm weaker peak, are determined within the temperature range of 9 K-350 K. The full width at half-maximum of them does not change a lot. An important cause for the width of fluorescence line is inhomogeneous broadening from this bismuth-based glass host. On the other hand, the electron- phonon coupling will have some influence on the emission spectrum and emission lifetime. For the temperature dependence of lifetime, a longer emission lifetime of Yb at higher temperature region indicates a more significant influence of radiation trapping effect.

关 键 词：材料 掺镱铋酸盐玻璃 低温荧光光谱 低温荧光寿命 低温激发光谱 

分 类 号：TQ171.735[化学工程—玻璃工业]