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应用中频感应提拉法生长了新型的Nd3+∶(La,Sr)(Al,Ta)O3(Nd3+∶LSAT)晶体。运用电感耦合等离子体原子发射光谱仪(ICP-AES)测定Nd3+离子在Nd3+∶LSAT晶体中的分凝系数为0.587。X射线粉末衍射(XRPD)测试结果表明Nd3+∶LSAT晶体与LSAT晶体同构。研究了不同退火条件对晶体光谱性能的影响。分析了Nd3+∶LSAT晶体的光谱性能,Nd3+∶LSAT晶体的荧光寿命为290μs。比较了Nd3+∶LSAT和Nd3+∶YAG,Nd3+∶YVO4等晶体的光谱参数。结果表明Nd3+∶LSAT是一种适合激光二极管(LD)抽运的、有前景的激光增益介质。
A novel Nd3 +: (La, Sr) (Al, Ta) O3 (Nd3 +: LSAT) crystal was grown by the medium frequency induction pulling method. The segregation coefficient of Nd3 + ions in Nd3 +: LSAT crystal was determined by Inductively Coupled Plasma Atomic Emission Spectrometer (ICP-AES) as 0.587. X-ray powder diffraction (XRPD) results show that the Nd3 +: LSAT crystal is isomorphic to the LSAT crystal. The effects of different annealing conditions on the performance of the crystals were investigated. The spectral properties of Nd3 +: LSAT crystals were analyzed. The fluorescence lifetime of Nd3 +: LSAT crystals was 290μs. The spectral parameters of Nd3 +: LSAT and Nd3 +: YAG, Nd3 +: YVO4 crystals were compared. The results show that Nd3 +: LSAT is a promising laser gain medium suitable for laser diode (LD) pumping.