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Crystal growth, spectral properties and Judd-Ofelt analysis of Pr: CaF2-YF3 |
| Jie Tian(田杰)1, Xiao Cao(曹笑)1, Wudi Wang(王无敌)1, Jian Liu(刘坚)1, Jianshu Dong(董建树)1, Donghua Hu(胡冬华)1, Qingguo Wang(王庆国)1,†, Yanyan Xue(薛艳艳)1,‡, Xiaodong Xu(徐晓东)2, and Jun Xu(徐军)1 |
1 School of Physics Science and Engineering, Institute for Advanced Study, Tongji University, Shanghai 200092, China;
2 Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China |
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Abstract The 0.6 at.% Pr3+-doped CaF2-YF3 crystal was successfully grown by the temperature gradient technique (TGT). X-ray diffraction analysis showed that the grown crystal still had cubic structure. The absorption spectrum, emission spectrum, Judd-Ofelt analysis and fluorescence decay curve at room temperature were discussed. The fluorescence lifetime of Pr: CaF2-YF3 crystal was 45.46 μs, and the σem·τ of 3P0→3H6 and 3P0→3F2 transitions were calculated to be 80.92×10-20 cm2·μs and 388.7×10-20 cm2·μs, respectively. The FWHMs are 20.1 nm and 6.8 nm, which are higher than those of Pr: LiYF4, Pr: LiLuF4, Pr: LiGdF4 and Pr: BaY2F8 crystals. The results show that the Pr: CaF2-YF3 crystal is expected to achieve 605 nm orange light and 642 nm red light laser operation.
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Received: 29 December 2020
Revised: 09 April 2021
Accepted manuscript online: 19 April 2021
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PACS:
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81.10.-h
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(Methods of crystal growth; physics and chemistry of crystal growth, crystal morphology, and orientation)
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42.70.Hj
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(Laser materials)
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02.70.Hm
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(Spectral methods)
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61.50.-f
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(Structure of bulk crystals)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 61805177, 61861136007, and 61621001). |
Corresponding Authors:
Qingguo Wang, Yanyan Xue
E-mail: qgwang@tongji.edu.cn;xueyanyanf@163.com
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Cite this article:
Jie Tian(田杰), Xiao Cao(曹笑), Wudi Wang(王无敌), Jian Liu(刘坚), Jianshu Dong(董建树), Donghua Hu(胡冬华), Qingguo Wang(王庆国), Yanyan Xue(薛艳艳), Xiaodong Xu(徐晓东), and Jun Xu(徐军) Crystal growth, spectral properties and Judd-Ofelt analysis of Pr: CaF2-YF3 2021 Chin. Phys. B 30 108101
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