Enhancement of 1.54 μm emission in Er:LiNbO3 crystal by codoping with Zn2+ ions
来源期刊：JOURNAL OF RARE EARTHS2012年第1期
论文作者：钱艳楠 王锐 徐超 邢丽丽 徐衍岭 杨春辉
文章页码：25 - 28
摘 要：The enhanced intensity and lengthened lifetime of 1.54 μm emission were observed for Er:LiNbO3 crystal codoped with Zn2+ ions.The ZnO codoping led to the reduction of the green upconversion emission in Er:LiNbO3 crystals.The decay trace of the 4S3/2→4I15/2 was ob-viously nonexponential for Er:LiNbO3 codoped with 0 and 3 mol.% ZnO,but became exponential for one codoped with 6 mol.% ZnO.The OH-absorption spectra showed after codoping with Zn2+ ions,the OH-absorption peaking position shifted from 3495 to 3484 cm-1,and the absorption cross section decreased.These spectroscopic characteristics suggested that the improvement of 1.54 μm emission was attributed to the reduction of Er3+ cluster sites.
钱艳楠，王锐，徐超，邢丽丽，徐衍岭，杨春辉
Department of Chemistry,Harbin Institute of Technology
摘 要：The enhanced intensity and lengthened lifetime of 1.54 μm emission were observed for Er:LiNbO3 crystal codoped with Zn2+ ions.The ZnO codoping led to the reduction of the green upconversion emission in Er:LiNbO3 crystals.The decay trace of the 4S3/2→4I15/2 was ob-viously nonexponential for Er:LiNbO3 codoped with 0 and 3 mol.% ZnO,but became exponential for one codoped with 6 mol.% ZnO.The OH-absorption spectra showed after codoping with Zn2+ ions,the OH-absorption peaking position shifted from 3495 to 3484 cm-1,and the absorption cross section decreased.These spectroscopic characteristics suggested that the improvement of 1.54 μm emission was attributed to the reduction of Er3+ cluster sites.
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