掺铒铝硅酸盐玻璃光谱和上转换荧光性质研究

利用Judd小Ofelt(J—O)理论和吸收光谱计算了Er^3 、Yb^3 掺杂的铝硅酸盐玻璃的J—O参量、振子强度、跃迁几率、荧光寿命，量子效率以及上转换系数等参量，比较了饵离子^I13/2—^I15／2跃迁的光谱参量的计算与测量值，并讨论了玻璃中OH—浓度与荧光寿命、绿色上转换发光强度与抽运光功率的关系。

Spectroscopic and Upconversion Fluorescence Properties of Er3+ Doped Aluminosilicate Glass

The Judd-Ofelt parameters, oscillator strengths, radiative transition probability, radiative lifetime,quantum efficiency and upconversion coefficient of the Er 3+, Yb 3+ co-doped aluminosilicate glasses were calculated by the Judd-Ofelt theory, fluorescent lifetime and absorption spectra. The effect of Yb 3+ and Er 3+ ion concentrations, OH -groups on the spectroscopic and upconversion fluorescence properties was studied in this Er 3+, Yb 3+ co-doped aluminosilicate glass. It is found that at 1.56×10 20 cm -3 Yb3+ and Er3+ ion concentrations, the glass has the best spectroscopic properties.