| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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Crystal Structure and Judd–Ofelt Analysis of Er$^{3+}$ Doped LuAl$_{3}$(BO$_{3}$)$_{4}$ Crystal |
| Jun-Ying Zhang1, Shu-Juan Han2, Lin-Tao Liu1, Qian Yao1, Wei-Min Dong1, Jing Li1** |
1State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100
2Key Laboratory of Functional Materials and Devices for Special Environments, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011
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| Cite this article: |
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Jun-Ying Zhang, Shu-Juan Han, Lin-Tao Liu et al 2018 Chin. Phys. Lett. 35 096101 |
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Abstract Single crystal Er:LuAl$_{3}$(BO$_{3}$) (Er:LuAB) is successfully grown using the top-seeded solution growth method with a $K_{2}$Mo$_{3}$O$_{10}$ flux. The cell parameters of the grown crystal are estimated by an x-ray single crystal diffactometor and x-ray powder diffraction analysis. The result indicates that it still belongs to the space group $R32$. The obtained unit-cell parameters are $a=9.2793(19)$ Å, $c=7.210(3)$ Å, $V=537.65(27)$ Å$^{3}$, and $Z=3$. The absorption spectrum is measured at room temperature. The spectroscopy properties are investigated based on the Judd–Ofelt (J-O) theory, and the effective J-O parameters were calculated to be ${\it \Omega}_{2}=8.33\times10^{-20}$, ${\it \Omega}_{4}= 3.83\times10^{-20}$, and ${\it \Omega}_{6}=3.55\times10^{-20}$. The emission spectra of Er:LuAB crystal at room temperature are also studied and the $^{4}I_{11/2}\to {}^{4}I_{13/2}$ fluorescence around 3170 nm is observed. The emission cross section calculated by the F-L formula is $8.6\times10^{-20}$ cm$^{2}$. These results suggest that the Er:LuAB crystal may be a promising $\sim$3 μm laser material.
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Received: 26 April 2018
Published: 29 August 2018
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| PACS: |
61.50.-f
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(Structure of bulk crystals)
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78.55.-m
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(Photoluminescence, properties and materials)
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42.70.Hj
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(Laser materials)
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81.10.Fq
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(Growth from melts; zone melting and refining)
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| Fund: Supported by the National Natural Science Foundation of China under Grant No 51772171. |
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