1. Spectroscopic properties of heavily Ho3+-doped barium yttrium fluoride crystals.
- Author
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Ji En-Cai, Liu Qiang, Nie Ming-Ming, Luo Hui, Hu Yu-Xi, Guan Zhou-Guo, and Gong Ma-Li
- Subjects
SPECTRUM analysis ,BARIUM ,YTTRIUM ,CRYSTAL structure ,FLUORESCENCE - Abstract
The 30 at.% Ho: BaY
2 F8 crystals were grown by the Czochralski method, and their spectroscopic properties are analyzed systematically by standard Judd–Ofelt theory. The Judd–Ofelt intensity parameters are estimated to be Ω2 = 6.74 × 10−20 cm2 , Ω4 = 1.20 × 10−20 cm2 , and Ω6 = 0.66 × 10−20 cm2 , and the fluorescence branching ratios and radiative lifetimes for a series of excited state manifolds are also determined. The emission cross sections with our measured infrared luminescence spectra, especially important for 4.1 μm, are calculated to be about 4.37 × 10−21 cm2 . The crystal quality is preliminarily tested through a mid-infrared laser emission experiment. [ABSTRACT FROM AUTHOR]- Published
- 2015
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