• High Power Laser Science and Engineering
  • Vol. 12, Issue 5, 05000e65 (2024)
Haiyang Wang1,2,3, Mengxia Wang2,3,*, Zhen Zhang4, Yuanan Zhao2,3,*..., Dawei Li2,3, Kun Shuai2,3, Hailong Qiu1,*, Zhonghan Zhang4, Liangbi Su4 and Jianda Shao2,3,5|Show fewer author(s)
Author Affiliations
  • 1Tianjin Key Laboratory of Functional Crystal Materials, Institute of Functional Crystals, Tianjin University of Technology, Tianjin, China
  • 2Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, China
  • 3Laboratory of Thin Film Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China
  • 4Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China
  • 5Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, China
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    DOI: 10.1017/hpl.2024.44 Cite this Article Set citation alerts
    Haiyang Wang, Mengxia Wang, Zhen Zhang, Yuanan Zhao, Dawei Li, Kun Shuai, Hailong Qiu, Zhonghan Zhang, Liangbi Su, Jianda Shao, "976 nm continuous-wave laser damage of Er:CaF2 crystals," High Power Laser Sci. Eng. 12, 05000e65 (2024) Copy Citation Text show less
    (a) Schematic of the experimental setup for a CW laser irradiation system. (b) Thresholds of Er:CaF2 crystals with different doping concentrations under CW laser irradiation at 976 nm.
    Fig. 1. (a) Schematic of the experimental setup for a CW laser irradiation system. (b) Thresholds of Er:CaF2 crystals with different doping concentrations under CW laser irradiation at 976 nm.
    SEM images of typical damage morphology. (a) 1% Er:CaF2 and (b) 2% Er:CaF2 top views of the damage region resulting from CW laser irradiation, respectively. (c), (d) Magnified images of the rectangular region.
    Fig. 2. SEM images of typical damage morphology. (a) 1% Er:CaF2 and (b) 2% Er:CaF2 top views of the damage region resulting from CW laser irradiation, respectively. (c), (d) Magnified images of the rectangular region.
    Relationship between the maximum temperature and pump power at the incidence surface of the (a) 1% Er:CaF2 and (b) 2% Er:CaF2. The temperature field at the incidence surface of (c) 1% Er:CaF2 and (d) 2% Er:CaF2, under a pump power of 8 W.
    Fig. 3. Relationship between the maximum temperature and pump power at the incidence surface of the (a) 1% Er:CaF2 and (b) 2% Er:CaF2. The temperature field at the incidence surface of (c) 1% Er:CaF2 and (d) 2% Er:CaF2, under a pump power of 8 W.
    Temperature profiles in the x-axis direction of the incidence surface for 1% and 2% Er:CaF2 for pump power from 4.17 to 16.50 W using a three-dimensional finite-element simulation model.
    Fig. 4. Temperature profiles in the x-axis direction of the incidence surface for 1% and 2% Er:CaF2 for pump power from 4.17 to 16.50 W using a three-dimensional finite-element simulation model.
    (a) Schematic of crystal fracturing under tensile stress. Stress fields of (b) 1% Er:CaF2 and (c) 2% Er:CaF2 crystals as damage occurs, calculated with a three-dimensional finite-element coupled thermodynamic model.
    Fig. 5. (a) Schematic of crystal fracturing under tensile stress. Stress fields of (b) 1% Er:CaF2 and (c) 2% Er:CaF2 crystals as damage occurs, calculated with a three-dimensional finite-element coupled thermodynamic model.
    Haiyang Wang, Mengxia Wang, Zhen Zhang, Yuanan Zhao, Dawei Li, Kun Shuai, Hailong Qiu, Zhonghan Zhang, Liangbi Su, Jianda Shao, "976 nm continuous-wave laser damage of Er:CaF2 crystals," High Power Laser Sci. Eng. 12, 05000e65 (2024)
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