Crystal growth and spectral properties of Tb:Lu2O3

• 来源期刊: 中国物理B（英文版）
• 关键词: fluorescence spectra laser materials excited states
• 年，卷（期）: 2018,（9）
• 页码范围: 673-678
• 页数: 6页
• 语种: 英文
• DOI: 10.1088/1674-1056/27/9/097801

摘要

The crystal growth,x-ray diffraction pattern,absorption spectrum,emission spectrum,and fluorescence lifetime of a Tb:Lu2O3 single crystal were studied.Excited at 483 nm,the peak absorption cross-section was calculated to be 3.5×10-22 cm2,and the full width at half maximum was found to be 2.85 nm.The Judd-Ofelt(J-O)intensity parameters Ω2,Ω4,and Ω6 were computed to be 3.79×10-20 cm2,1.30×10-20 cm2,and 1.08×10-20 cm2,with a spectroscopic quality factor Ω4/Ω6 being 1.20.The emission cross-sections of green emission around 543 nm and yellow emission around 584 nm were calculated to be 9.43×10-22 cm2 and 1.32×10-22 cm2,respectively.The fluorescence lifetime τexp of 5D4 was fitted to be 1.13 ms.The data suggest that the Tb:Lu2O3 crystal could be a potential candidate for green and yellow laser operation.