Erbium-doped tellurite-based glasses （Er3＋：TeO2-ZnO-La203） are prepared by the conventional melt-quenching technique, and concentration-dependent luminescence properties of Er3＋ are investigated. A significant sp...Erbium-doped tellurite-based glasses （Er3＋：TeO2-ZnO-La203） are prepared by the conventional melt-quenching technique, and concentration-dependent luminescence properties of Er3＋ are investigated. A significant spectral broadening of the 1.53 μm fluorescence corresponding to 4113/2 4115/2 transition is observed, and the fluorescence decaying becomes a nearly exponential way with the increasing Er3＊concentration. Radiation trapping is evoked to explain the broadening of 4113/2 4115/2 emission line of Er3＋ ions. The optimum doping content of Er203 for 1.53 μm fluorescence emission is about 1.5 mol%.展开更多
基金supported by the National Natural Science Foundation of China(No.61178063)the Graduate Innovative Scientific Research Project of Zhejiang Province(No.YK2010048)+2 种基金the Natural Science Foundation of Ningbo City(No.2010A610172)the K.C.Wong Magna Fundthe Hu Lan Outstanding Doctoral Fund in Ningbo University
文摘Erbium-doped tellurite-based glasses （Er3＋：TeO2-ZnO-La203） are prepared by the conventional melt-quenching technique, and concentration-dependent luminescence properties of Er3＋ are investigated. A significant spectral broadening of the 1.53 μm fluorescence corresponding to 4113/2 4115/2 transition is observed, and the fluorescence decaying becomes a nearly exponential way with the increasing Er3＊concentration. Radiation trapping is evoked to explain the broadening of 4113/2 4115/2 emission line of Er3＋ ions. The optimum doping content of Er203 for 1.53 μm fluorescence emission is about 1.5 mol%.
