测量了Eu³⁺(lmol%)掺杂(60－χ)Bi₂O_3－χ TeO₂－30B₂O₃－10ZnO(χ=5，10，20，30，摩尔百分比)玻璃的吸收光谱、发射光谱、激发光谱以及声子边带谱．根据稀土离子Eu³⁺光学跃起矩阵元的特点，从发射光谱获得了Eu³⁺光学跃起的J－O参数Ω₂与Ω₄．结果显示，强度参量Ω₂随着Bi₂O₃量的增加与TeO₂量的减少而减小，表明材料的对称性提高，Eu－O键强减弱，共价性减弱．随着Bi₂O₃量的增加，电一声子偶合减弱，材料的热稳定性大幅度提高．

The absorption,emission,excitation and phonon-side band spectra of Eu³⁺ doped in 1mol(60-χ)Bi₂O_3-χTeO₂-30B₂O₃-10ZnO(χ=5,10,20,30,molar percent) were measured. The Ω₂ and Ω₄ parameters of Eu³⁺ for optical transition were calculated from their emission spectra in terms of reduced matrix U^(t)(λ=2,4,6) character for optical transitions. The results indicate that the intensity parameters Ω₂ decrease as the increase of Bi₂O₃ and decrease of TeO₂ contents. It suggests that the symmetry becomes higher,the bands of Eu and O atoms become weaker and the covalency of Eu and O atoms decreases. In the meantime,the electron-phonon coupling becomes weaker and the thermal stability of the glasses enhance obviously as the increase of Bi₂O₃ and decrease of TeO₂.