Spectroscopic properties of Yb-doped CaF2-YF3 solid-solution laser crystal

The spectroscopic properties of Yb:CaF2-YF3 disordered crystals obtained by the vertical Bridgman method were studied. The 3 at.% Yb, 3 at.% Y:CaF2 crystal absorption cross section σabs centered at 974 nm reached 7.2 × 10−21 cm2 and the fluorescence lifetime was 3.54 ms at room temperature. Experime...

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Bibliographic Details
Published in:Laser physics 2013-10, Vol.23 (10)
Main Authors: Wu, Yeqing, Su, Liangbi, Wang, Qingguo, Li, Hongjun, Zhan, Yaoyu, Jang, Dapeng, Qian, Xiaobo, Wang, Chuanyong, Zheng, Lihe, Chen, Hongbing, Xu, Jun, Ryba-Romanowski, Witold, Solarz, Piotr, Lisiecki, Radoslaw
Format: Article
Language:English
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Summary:The spectroscopic properties of Yb:CaF2-YF3 disordered crystals obtained by the vertical Bridgman method were studied. The 3 at.% Yb, 3 at.% Y:CaF2 crystal absorption cross section σabs centered at 974 nm reached 7.2 × 10−21 cm2 and the fluorescence lifetime was 3.54 ms at room temperature. Experimental results show that co-doping Y3+ ions at different Y:Yb ratios can modulate the spectroscopy and lengthen the luminescence lifetime of Yb3+ ions in the CaF2 lattice. There are three main kinds of lattice in the 3 at.% Yb, 3 at.% Y:CaF2 crystal, as concluded from the low-temperature spectra.
ISSN:1054-660X
1555-6611
DOI:10.1088/1054-660X/23/10/105805