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中文摘要：
采用氧化物高温熔融的方法制备出铒铋共掺的硼酸盐玻璃，并对其吸收光谱和发射光谱进行了研究。应用Judd—Ofelt理论计算了铒铋共掺硼酸盐玻璃的3个强度参数Ωλ（A=2，4，6），分别为Ω2—3．8249×10^-20cm^2，Ω4=1．6805×10^-20cm^2，Ω6=1．5069×10^-20cm^2。在此基础上，计算了电偶极跃迁的光谱强度Sm自发辐射跃迁几率A以及吸收截面σas（v）等参数。根据McCumber理论，计算了能级。^4I13/2→I15／2跃迁的半峰全宽和受激发射截面，结果表明铒铋共掺硼酸盐玻璃的半峰全宽可达69．68nm。
英文摘要：
The Er3＋-Bi3＋ co-doped borate glasses are fabricated by the method of oxide high-temperature melting. The absorption and emission spectra are studied. The intensity parameters Ωλ （λ = 2,4,6）, determined by Judd-Ofelt theory, are calculated to be Ω2 =3.8249× 10.20 cm2, /24 =1.6805× 10-20 cm2 and g26=1.5069× 10-20 cm2, respectively. The spectral intensity of the electric dipole transitions, the spontaneous radiative transition probabilities and the absorption cross-sections are also calculated. The full width at half maximum （FWHM） and stimulated emission cross-sections of 4I13/2 →4I15/2 transition are calculated by McCumber theory. The results show that the FWHM of Er3＋ -Bia＋ co-doped borate glasses can reach 69.68 nm.
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