中国物理B ›› 2021, Vol. 30 ›› Issue (10): 108101-108101.doi: 10.1088/1674-1056/abf921

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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. 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
  • 收稿日期:2020-12-29 修回日期:2021-04-09 接受日期:2021-04-19 发布日期:2021-09-17
  • 通讯作者: Qingguo Wang, Yanyan Xue E-mail:qgwang@tongji.edu.cn;xueyanyanf@163.com
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61805177, 61861136007, and 61621001).

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. 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
  • Received:2020-12-29 Revised:2021-04-09 Accepted:2021-04-19 Published:2021-09-17
  • Contact: Qingguo Wang, Yanyan Xue E-mail:qgwang@tongji.edu.cn;xueyanyanf@163.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61805177, 61861136007, and 61621001).

摘要: 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 3P03H6 and 3P03F2 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.

关键词: CaF2-YF3, crystal growth, spectral property, Judd-Ofelt theory

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 3P03H6 and 3P03F2 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.

Key words: CaF2-YF3, crystal growth, spectral property, Judd-Ofelt theory

中图分类号:  (Methods of crystal growth; physics and chemistry of crystal growth, crystal morphology, and orientation)

  • 81.10.-h
42.70.Hj (Laser materials) 02.70.Hm (Spectral methods) 61.50.-f (Structure of bulk crystals)