Glasses of the composition 40Li₂O‒(60-x)Sb₂O₃: xNd₂O₃(x = 0.2, 0.4, 0.6, 0.8 and 1.0 mol%) were synthesized by melt quenching technique. The structural and optical characteristics were investigated as a function of Nd₂O₃concentration. From the optical absorption spectra J-O intensity parameters (Ω_λ, λ = 2,4 and 6) were evaluated; the parameters are found to be in the order: Ω₂ > Ω₆ > Ω₄. The emission spectra recorded at λ_exc = 808 nm) exhibited three intense bands at 875 nm, 1053 nm and 1328 nm attributed to⁴F_3/2 → ⁴I_9/2,_11/2,_13/2 transitions, respectively. The intensity of ⁴F_3/2 → ⁴I_11/2 (1.053 μm) emission band is found to be the highest among the three bands. With increasing the concentration of Nd₂O₃ upto 0.8 mol%, intensity of all emission bands exhibited an increasing trend. Beyond 0.8 mol%, a decrease in the intensity of PL output is observed; this is attributed to concentration quenching losses and increased phonon losses. From emission spectra, various radiative parameters such as transition probability, A_R, branching ratio β, and radiative life time, τ_R, were evaluated for all glass samples. The analysis of the results indicated glasses mixed with 0.8 mol% of Nd³⁺exhibited the highest efficiency of 1.053 μm emission. The reasons for such high efficiency were further identified using structural analysis of the host glass using IR spectral studies.

通过熔融淬火技术合成组成为40Li ₂ O 3（60-x）Sb ₂ O ₃：xNd ₂ O ₃（x ＝0.2、0.4、0.6、0.8和1.0mol％）的玻璃。研究了结构和光学特性与Nd ₂ O ₃浓度的关系。从光的吸收光谱强度JO参数（Ω _λ，λ  = 2,4和6）进行评价; 参数被发现是顺序为：Ω ₂ >Ω ₆ >Ω ₄。在_λexc处记录的发射光谱 = 808纳米）表现出在875纳米，1053纳米和1328纳米的3个强条带归因于⁴ ˚F _3/2  →  ⁴余_9/2，_11/2，_13/2分别转换，。发现⁴ F _3/2  →  ⁴ I _11/2（1.053μm）发射带的强度在三个波段中最高。随着Nd ₂ O ₃浓度的增加直至0.8mol％，所有发射带的强度都呈现出增加的趋势。超过0.8mol％，观察到PL输出的强度降低；反之，则降低。这归因于浓度猝灭损失和声子损失增加。从发射光谱，各种辐射参数，诸如转移概率，A _{- [R} ，分支比β，和辐射寿命，τ _{- [R} ，对于所有玻璃样品进行了评价。结果分析表明，混合有0.8 mol％Nd ^3+的玻璃具有最高的1.053μm发射效率。通过使用红外光谱研究对基质玻璃进行结构分析，进一步确定了如此高效率的原因。