Spectral properties of Pr:CNGG crystals grown by micro-pulling-down method

• 来源期刊: 中国物理B（英文版）
• 关键词: Pr:CNGG μ-PD method spectral properties
• 年，卷（期）: 2019,（8）
• 页码范围: 345-348
• 页数: 4页
• 语种: 英文
• DOI: 10.1088/1674-1056/28/8/087801

摘要

Pr3+-doped calcium niobium gallium garnet (Pr:CNGG) single crystals with different pr3+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 1 D2 energy level is also determined.The results indicate that Pr:CNGG crystal could be a potential solid-state laser gain medium.