Abstract A series of Er3+ ions doped lithium lead alumino borate (LiPbAlB) glasses were synthesized via melt quench method and their structural, physical and optical properties were studied. Judd-Ofelt theory in correlation with the emission and absorption profiles was performed for the measurement of various radiative parameters for different transitions of Er3+ doped glasses. The as-prepared glasses show deep green (550 nm) as well as NIR (1532 nm) emission at 380 and 980 nm excitation wavelengths, respectively. The intensity of emission spectra increases with Er3+ ions concentration up to 1.5 mol% and beyond quenching is observed. The Dexter theory applied to the emission profiles reveals the interaction between Er3+ ions as dipole-dipole in nature. CIE color coordinates are found to fall in the green region of the visible spectrum. It is observed that 1.5 mol% of Er3+ ions concentration is optimum to exhibit the maximum quantum efficiency, branching ratios, gain bandwidth, emission cross-section, gain cross-section and aptly suitable for visible and NIR photonic applications.

中文翻译：

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用于光子应用的 Li2O-PbO-Al2O3-B2O3 玻璃中 Er3+ 离子的增强可见绿光和 1.5 μm 辐射发射

摘要 采用熔融淬火法合成了一系列Er3+离子掺杂的锂铝硼酸铅(LiPbAlB)玻璃，并对其结构、物理和光学性能进行了研究。Judd-Ofelt 理论与发射和吸收曲线相关，用于测量 Er3+ 掺杂玻璃的不同跃迁的各种辐射参数。所制备的玻璃分别在 380 和 980 nm 激发波长下显示深绿色 (550 nm) 和 NIR (1532 nm) 发射。发射光谱的强度随着 Er3+ 离子浓度增加到 1.5 mol% 而增加，并且观察到超过淬灭。应用于发射曲线的 Dexter 理论揭示了 Er3+ 离子之间的相互作用，本质上是偶极-偶极。发现 CIE 颜色坐标落在可见光谱的绿色区域内。