Pr^3+-doped calcium niobium gallium garnet(Pr:CNGG)single crystals with different Pr^3+concentrations are successfully grown by the micro-pulling-down(μ-PD)method.The crystal structure,room-temperature absorption spe...Pr^3+-doped calcium niobium gallium garnet(Pr:CNGG)single crystals with different Pr^3+concentrations are successfully grown by the micro-pulling-down(μ-PD)method.The crystal structure,room-temperature absorption spectra,and fluorescence spectra of Pr:CNGG crystals are measured and discussed.The fluorescence results indicate their large dependence on the doping concentration.The fluorescence lifetime of the 1D2 energy level is also determined.The results indicate that Pr:CNGG crystal could be a potential solid-state laser gain medium.展开更多
基金Project supported by the National Key Research and Development Program of China(Grant No.2016YFB0701002)the National Natural Science Foundation of China(Grant Nos.61621001 and 61605069)the MOE Key Laboratory of Advanced Micro-Structured Materials,China
文摘Pr^3+-doped calcium niobium gallium garnet(Pr:CNGG)single crystals with different Pr^3+concentrations are successfully grown by the micro-pulling-down(μ-PD)method.The crystal structure,room-temperature absorption spectra,and fluorescence spectra of Pr:CNGG crystals are measured and discussed.The fluorescence results indicate their large dependence on the doping concentration.The fluorescence lifetime of the 1D2 energy level is also determined.The results indicate that Pr:CNGG crystal could be a potential solid-state laser gain medium.
