Comparative study of 27 μm emission of Ho^3+ desensitized Er^3+ in tellurite and bismuth glass
Comparative study of 27 μm emission of Ho^3+ desensitized Er^3+ in tellurite and bismuth glass
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DOI：
10.1364/ome.7.001147
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发表时间：
2017-04
影响因子：
2.8
通讯作者：
Zhao Guoying;Jin Wentian;Yong-Zheng Fang;Yubiao He;Yingjie Li;Yufeng Liu;M. Liao;Jun Zou
中科院分区：
文献类型：
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作者：
Zhao Guoying;Jin Wentian;Yong-Zheng Fang;Yubiao He;Yingjie Li;Yufeng Liu;M. Liao;Jun Zou
定量研究了Er ~（3+）/Ho ~（3+）共掺碲酸盐和铋玻璃中的能量传递机制。当Ho 3+加入到碲酸盐玻璃中时，在980 nm激发下，观察到增强的Er 3+：2.7 μm发射。用Dexter理论计算了碲酸盐玻璃中Er ~（3+）：4 I ~（13/2）→ Ho ~（3+）：5I ~（7）的能量转移效率。基于上转换光谱和近红外光谱，在碲酸盐玻璃中，Er 3+：4 I 13/2 + Ho 3+：5I 6 → Er 3+：4 I 15/2 + Ho 3+：5 F 5的交叉弛豫是比较有效的，它耗尽了Er 3+：4 I 13/2能级的布居。这些优异的光谱特性表明Er 3 +/Ho 3+共掺碲酸盐玻璃在中红外激光方面具有潜在的应用前景。
Energy transfer mechanisms have been quantitatively studied in Er3+/Ho3+ codoped tellurite and bismuth glass. Upon an excitation of 980 nm, an enhanced Er3+:2.7 μm emission was observed when Ho3+ was added to tellurite glass. Using Dexter’s theory, it is clearly shown that the efficiency of Er3+:4I13/2 → Ho3+:5I7 energy transfer is higher in tellurite glass than in bismuth glass. Based on upconversion and near-infrared spectra, the cross relaxation Er3+:4I13/2 + Ho3+:5I6 → Er3+:4I15/2 + Ho3+:5F5 is comparatively effective in tellurite glass, where it depletes the population of Er3+:4I13/2 level. The excellent spectroscopic characteristics indicate Er3+/Ho3+ co-doped tellurite glass has potential application for mid-infrared laser.