Spectral Parameters of Nd3+∶Sr6YSc(BO3)6
来源期刊：JOURNAL OF RARE EARTHS2003年第1期
论文作者：胡祖树 王国富 林州斌
Key words：optics; Nd3+∶Sr6YSc(BO3)6 crystal; crystal growth; spectral parameters; Judd-Ofelt theory; rare earths;
Abstract: The crystal Nd3+∶Sr6YSc(BO3)6 was grown by the top-seeded solution growth method from a Li6B4O9 flux. The spectral properties of Nd3+∶Sr6YSc(BO3)6 crystal were investigated. Using Judd-Ofelt theory to analyze the optical strength measured in absorption spectrum, the following spectral parameters were obtained: parameters of oscillator strengths Ωλ are Ω2=1.194×10-20 cm2, Ω4=4.186×10-20 cm2 and Ω6=3.351×10-20 cm2. The radiative lifetime is 322 μs, and the fluorescence branch ratios were calculated: β1=0.465, β2=0.453, β3=0.079 and β4=0.004. The results indicate that Nd3+∶Sr6YSc(BO3)6 crystal seems to be a potential high-efficient laser material.
胡祖树1，王国富1，林州斌1
(1.Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China)
Abstract:The crystal Nd3+∶Sr6YSc(BO3)6 was grown by the top-seeded solution growth method from a Li6B4O9 flux. The spectral properties of Nd3+∶Sr6YSc(BO3)6 crystal were investigated. Using Judd-Ofelt theory to analyze the optical strength measured in absorption spectrum, the following spectral parameters were obtained: parameters of oscillator strengths Ωλ are Ω2=1.194×10-20 cm2, Ω4=4.186×10-20 cm2 and Ω6=3.351×10-20 cm2. The radiative lifetime is 322 μs, and the fluorescence branch ratios were calculated: β1=0.465, β2=0.453, β3=0.079 and β4=0.004. The results indicate that Nd3+∶Sr6YSc(BO3)6 crystal seems to be a potential high-efficient laser material.
Key words:optics; Nd3+∶Sr6YSc(BO3)6 crystal; crystal growth; spectral parameters; Judd-Ofelt theory; rare earths;
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