中文摘要：

报道了氟氧化物纳米相玻璃陶瓷Tb（0.7）Yb（5）∶FOV的红外量子剪裁研究,测量了从可见到红外的荧光发光光谱、激发谱、和荧光寿命,分析了{1（[5 D4→7 F6]（Tb3＋）,2（[2 F7/2→2 F5/2]（Yb3＋）}的红外量子剪裁现象,发现了487.0nm光激发5 D4能级和378.0nm光激发（5 D3,5 G6）能级的理论量子剪裁效率ηx%Yb依次分别为121.35%和136.27%。首次发现了一种新颖的合作（共协）下转换发光现象{2（[（5 D3,5 G6）→5 D4]（Tb3＋）,1（[2 F7/2→2 F5/2]（Yb3＋）},即首次发现施主Tb3＋离子释放两个小能量光子[（5 D3,5 G6）→5 D4]的能量,导致出现一个受主Yb3＋的[2 F5/2→2 F7/2]的中等能量的光子。

英文摘要：

The present article reports the infrared quantum cutting study of the nanophase oxyfluoride vitroceramics Tb（0.7）Yb（5.0）∶FOV.The visible to infrared fluorescence emission spectra,excitation spectra and fluorescence lifetime were measured carefully.The infrared quantum cutting phenomenon {1（[5D4→7F6]（Tb3＋）,2（[2F7/2→2F5/2]（Yb3＋）} was analyzed based on the above experiments.It was found that the theoretical quantum cutting efficiency is about 121.35% when 5D4 level is excited by 487.0nm light,and about 136.27% when（5D3,5G6） levels are excited by 378.0 nm light respectively.Meanwhile,it is first time for the present paper to find a cooperative downconversion phenomenon {2（[（5D3,5G6）→5D4]（Tb3＋）,1（[2F7/2→2F5/2]（Yb3＋）}.That is,the authors found for the first time that the donor Tb3＋ ion releases two pieces of energy [（5D3,5G6）→5D4] of small energy photon to produce a middle energy photon [2F5/2→2F7/2] of acceptor Yb3＋ ion.