Author/Authors :
Su، نويسنده , , Liangbi and Xu، نويسنده , , Jun and Li، نويسنده , , Hongjun and Wen، نويسنده , , Lei and Zhu، نويسنده , , Yueqin and Zhao، نويسنده , , Zhiwei and Dong، نويسنده , , Yongjun and Zhou، نويسنده , , Guoqing and Si، نويسنده , , Jiliang، نويسنده ,
Abstract :
For the first time, the effect of Na+ on crystal structure, valence state of Yb ions, spectroscopic properties of YbF3-doped CaF2 system was systematically studied. Na+ can greatly suppress the deoxidization of Yb3+ to Yb2+. Absorption and emission spectra showed codoping Na+ with different Na:Yb ratios can modulate the spectroscopy and photoluminescence properties of Yb3+ ions in CaF2 lattice in a large scope. The emission lifetime and quantum efficiency of Yb3+ in CaF2 were greatly enhanced by the codopant of Na+. The potential laser performances of the new Yb, Na-codoped CaF2 crystals were predicted.
