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人工晶体学报 ›› 2023, Vol. 52 ›› Issue (7): 1258-1269.

• 大尺寸激光晶体材料制备的关键技术与应用研究 • 上一篇    下一篇

Pr3+掺杂碱土混合氟化物激光晶体的生长与发光性能研究

王无敌1, 王庆国1, 薛艳艳1, 唐慧丽1, 徐子寒1, 张晨波1, 房前成1, 吴锋1, 罗平1, 徐晓东2, 苏良碧3, 李岩4, 韩建峰4, 逯占文4, 徐军1   

  1. 1.同济大学物理科学与工程学院,上海 200092;
    2.江苏师范大学物理与电子工程学院,徐州 221116;
    3.中国科学院上海硅酸盐研究所,上海 201899;
    4.连城凯科斯科技有限公司,无锡 214000)
  • 收稿日期:2023-05-20 出版日期:2023-07-15 发布日期:2023-08-16
  • 通信作者: 唐慧丽,副教授。E-mail:tanghl@tongji.edu.cn
    徐 军,教授。E-mail:15503@tongji.edu.cn
  • 作者简介:王无敌(1996—),男,河南省人,博士研究生。E-mail:wdwangw@163.com
  • 基金资助:
    国家重点研发计划(2022YFB3605701);国家自然科学基金(61621001,62075166,61805177)

Growth and Luminescence Properties of Pr3+ Doped Alkaline Earth Mixed Fluoride Laser Crystals

WANG Wudi1, WANG Qingguo1, XUE Yanyan1, TANG Huili1, XU Zihan1, ZHANG Chenbo1, FANG Qiancheng1, WU Feng1, LUO Ping1, XU Xiaodong2, SU Liangbi3, LI Yan4, HAN Jianfeng4, LU Zhanwen4, XU Jun1   

  1. 1. School of Physics Science and Engineering, Tongji University, Shanghai 200092, China;
    2. School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China;
    3. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, China;
    4. Linton Kayex Technology Co., Ltd., Wuxi 214000, China
  • Received:2023-05-20 Online:2023-07-15 Published:2023-08-16

摘要: 采用多孔坩埚温度梯度法生长了0.6%Pr∶CaxSr1-xF2 (x=0, 0.3, 0.5, 0.7, 1.0)和0.6%Pr,5%R∶Ca0.5Sr0.5F2(R=Y, Lu, Gd)系列碱土氟化物激光晶体,对其晶体结构、吸收和可见波段的荧光光谱及荧光衰减寿命进行了系统研究。通过吸收截面、发射截面、荧光寿命、荧光半峰全宽等光谱参数分析发现,0.6%Pr,5%Y∶Ca0.5Sr0.5F2混晶与其他掺杂混晶相比,具有最佳的光谱效果,443 nm处吸收截面和640 nm处红光发射截面分别为1.63×10-20和3.39×10-20 cm2,相应荧光半峰全宽和荧光寿命分别为4.50 nm和42.8 μs,光谱参数与0.6%Pr∶CaxSr1-xF2 (x=0, 0.3, 0.5, 0.7, 1.0)混晶相比有显著的提升。结果表明,0.6%Pr,5%Y∶Ca0.5Sr0.5F2晶体具有极大的潜力作为新型Pr3+掺杂宽带激光材料的增益介质。

关键词: 激光晶体, 碱土氟化物, Pr3+掺杂, 可见激光, 发光性能

Abstract: In this paper, 0.6%Pr∶CaxSr1-xF2 (x=0, 0.3, 0.5, 0.7, 1.0) and 0.6%Pr, 5%R∶Ca0.5Sr0.5F2 (R=Y, Lu, Gd) crystals were grown by porous crucible temperature gradient technology. The crystal structure, absorption spectra, fluorescence spectra and fluorescence lifetime were systematically analyzed and discussed. Through the analysis of spectral parameters such as absorption cross section, emission cross section, fluorescence lifetime and fluorescence full width at half maximum (FWHM), it is concluded that 0.6%Pr,5%Y∶Ca0.5Sr0.5F2 mixed crystals have the best spectral parameter compared with other doped mixed crystals. The corresponding absorption cross sections at 443 nm and red emission cross sections at 640 nm are 1.63×10-20 and 3.39×10-20 cm2, respectively. The FWHM and fluorescence lifetime are fitted to be 4.50 nm and 42.8 μs, respectively. The spectral parameters have been greatly improved compared with 0.6%Pr∶CaxSr1-xF2 (x=0, 0.3, 0.5, 0.7, 1.0) mixed crystals. All results show that 0.6%Pr,5%Y∶Ca0.5Sr0.5F2 crystals have great potential as gain media for novel Pr3+ doped broadband laser material.

Key words: laser crystal, alkaline earth fluoride, Pr3+ doping, visible laser, luminescence property

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