Spectroscopic properties of heavily Ho3+-doped barium yttrium fluoride crystals

被引：12
作者：
Ji En-Cai [1 ]
Liu Qiang [1 ]
Nie Ming-Ming [1 ]
Luo Hui [2 ]
Hu Yu-Xi [2 ]
Guan Zhou-Guo [2 ]
Gong Ma-Li [1 ]
机构：
[1] Tsinghua Univ, Dept Precis Instrument, Ctr Photon & Elect, State Key Lab Precis Measurement Technol & Instru, Beijing 100084, Peoples R China
[2] Southwest Tech Inst Phys, Chengdu 610061, Peoples R China
来源：
CHINESE PHYSICS B | 2015年 / 24卷 / 09期
基金：
高等学校博士学科点专项科研基金; 中国国家自然科学基金;
关键词：
Ho:BYF crystal; Judd-Ofelt theory; mid-infrared laser; RARE-EARTH IONS; JUDD-OFELT PARAMETERS; SINGLE-CRYSTALS; HO3+ IONS; OPTICAL ABSORPTION; CROSS-SECTIONS; ENERGY-LEVELS; LASER; INTENSITIES; EMISSION;
D O I：
10.1088/1674-1056/24/9/094216
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The 30 at.% Ho: BaY2F8 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 Omega(2) = 6.74 x 10(-20) cm(2), Omega(4) = 1.20 x 10(-20) cm(2), and Omega(6) = 0.66 x 10(-20) cm(2), 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 mu m, are calculated to be about 4.37 x 10(-21) cm(2). The crystal quality is preliminarily tested through a mid-infrared laser emission experiment.
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页数：8
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