掺Tm^3＋锗酸盐玻璃的光谱参数计算  

The Optical Parameter Calculation of Tm^3＋ -doped Germanate Glasses

作　　者：林琼斐[1] 夏海平[1] 张约品[1] 王金浩[1] 章践立[2] 贺赛龙[2] 

机构地区：[1]宁波大学光电子功能材料研究所,宁波315211 [2]宁波大学学报编辑部,宁波315211

出　　处：《武汉理工大学学报》2007年第E01期128-132,共5页Journal of Wuhan University of Technology

基　　金：浙江省自然科学基金（Y406220）和宁波市博士基金（2005A610010,2005A610023）

摘　　要：用高温熔融法制备了Tm^3＋（0．5mol％）离子掺杂65GeO2—8Li2O-5La2O3—10BaO-12Ga2O3和65GEO2—8Li2O-5La2O3—10BaF2—12AlF3（摩尔分数）玻璃，并测试了玻璃的吸收光谱和折射率与密度等参数。根据吸收特性及测得的一些物化参数，应用Judd—Ofelt理论计算了Tm^3＋离子在上述玻璃中的强度参数（Ω2，Ω4，Ω6）及Tm^3＋各能级的自发跃迁几率、荧光分支比以及辐射寿命等光谱参量。Glasses with the compositions of 65GeO2-8Li2O-5La2O3-10BaO-12Ga2O3 and 65GeO2-8Li2O-5La2O3-10BaF2- 12AlF3 （molar ratio） doped with Tm^3＋ （0.5 mol % ） were fabricated by conventional melting method. The absorption spectra, density, and refractive index of the glasses were measured. According to the Judd-Ofelt theory, the Judd-Ofelt strength parameters（Ω2,Ω4,Ω6） were calculated in terms of the characteristics of the absorption spectra and the physical-chemical properties of the glasses, by which the radiative transition probabilities, fluorescence branching ratios and radiative lifetimes were obtained.

关 键 词：掺铥锗酸盐玻璃 光谱参数 JUDD-OFELT理论 

分 类 号：TQ171[化学工程—玻璃工业]