【摘要】 利用Judd Ofelt(J O)理论和吸收光谱计算了Er3 +、Yb3+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 ,比较了铒离子4 I13/ 2 →4 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。更多还原

【Abstract】 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 Yb 3+ and Er 3+ ion concentrations, the glass has the best spectroscopic properties.更多还原