研究了Tm3+/HO3+离子共掺碲酸盐玻璃的光谱性质,应用Judd-Ofelt理论计算了玻璃的各项光谱参数,推导了速率方程.表明3H4→3F4自发辐射跃迁几率很小,这一跃迁发射为-自终止系统.Tm3+离子3F4上粒子数主要来源于3H4+3H6→2323F4的交叉弛豫过程.玻璃的荧光光谱表明,随着Ho2O3浓度的增加,Tm3+离子3F4→3H6跃迁的1.8μm发光强度降低,而HO3+离子5I7→5I8跃迁的2.0 μm发光强度迅速升高,说明Ho2O3浓度的增加,Tm3+离子和Ho3+离子间的能量转移作用逐渐加强.
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