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High Power Laser and Particle Beams, Volume. 35, Issue 7, 071003(2023)

Investigating surface damage characteristics in DKDP crystals by laser irradiation at 355 nm and 1064 nm

Jinfang Shi1, Rong Qiu2、*, Decheng Guo2, Lei Zhou2, Yong Jiang2, Qiang Zhou2, Jian Yu1, Yuanpan Chen2, and Zhun Xie2
Author Affiliations
  • 1Key Laboratory of Testing Technology for Manufacturing Process of Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, China
  • 2Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (10)
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    References (26)
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    Figures & Tables(10)
    Schematic of laser induced damage experimental system

    Fig. 1. Schematic of laser induced damage experimental system

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    Damage probability curves of DKDP crystals before and after laser conditioning

    Fig. 2. Damage probability curves of DKDP crystals before and after laser conditioning

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    Typical morphology of craters with cavity

    Fig. 3. Typical morphology of craters with cavity

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    Typical morphology of surface damage cracks

    Fig. 4. Typical morphology of surface damage cracks

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    Typical morphology of craters with flat bottom

    Fig. 5. Typical morphology of craters with flat bottom

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    Typical morphology of surface ablation

    Fig. 6. Typical morphology of surface ablation

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    Surface damage caused by bulk defect on the surface

    Fig. 7. Surface damage caused by bulk defect on the surface

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    Damaged cavities and cracks in the bulk

    Fig. 8. Damaged cavities and cracks in the bulk

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    Typical morphology of surface damages induced by defects

    Fig. 9. Typical morphology of surface damages induced by defects

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    • Table 1. Characteristic data of surface damage morphology

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      Table 1. Characteristic data of surface damage morphology

      depth of damage crater/μm size of damage crater/μm probability of occurrence/% damage precursor
      crater with cavity15～10050～300～30crystal bulk defect
      crater with flat bottom5～5050～200～60surface cracks and surface defect
      surface damage crack20～10050～200～5crystal bulk defect
      surface ablation and others−30～500～5surface contamination and surface defect
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    Jinfang Shi, Rong Qiu, Decheng Guo, Lei Zhou, Yong Jiang, Qiang Zhou, Jian Yu, Yuanpan Chen, Zhun Xie. Investigating surface damage characteristics in DKDP crystals by laser irradiation at 355 nm and 1064 nm[J]. High Power Laser and Particle Beams, 2023, 35(7): 071003

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    Paper Information

    Category: Laser Damage of Optical Elements

    Received: Dec. 21, 2022

    Accepted: Mar. 21, 2023

    Published Online: Jul. 24, 2023

    The Author Email: Qiu Rong (43951700@qq.com)

    DOI:10.11884/HPLPB202335.220419

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology