• Acta Photonica Sinica
  • Vol. 54, Issue 3, 0312002 (2025)
Daqi ZHANG1, Yun ZHONG1, Tao CHEN1,*, Yu ZHANG1..., Yubin SHI2, Jinhai SI1 and Xun HOU1|Show fewer author(s)
Author Affiliations
  • 1Key Laboratory of Electronic Physics and Devices,Ministry of Education,School of Electronic Science and Engineering,Xi'an Jiaotong University,Xi'an 710049,China
  • 2State Key Laboratory of Laser-matter Interaction,Northwest Institute of Nuclear Technology,Xi'an 710024,China
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    DOI: 10.3788/gzxb20255403.0312002 Cite this Article
    Daqi ZHANG, Yun ZHONG, Tao CHEN, Yu ZHANG, Yubin SHI, Jinhai SI, Xun HOU. Automatic Measurement of Femtosecond Laser Damage Threshold on Diamond Surface Based on Image Recognition Algorithm[J]. Acta Photonica Sinica, 2025, 54(3): 0312002 Copy Citation Text show less
    Schematic of energy distribution of femtosecond laser
    Fig. 1. Schematic of energy distribution of femtosecond laser
    Schematic of femtosecond laser processing and characterization system
    Fig. 2. Schematic of femtosecond laser processing and characterization system
    Flow of LDT measurement using extrapolation method for damage area
    Fig. 3. Flow of LDT measurement using extrapolation method for damage area
    Damage area image processing process
    Fig. 4. Damage area image processing process
    Fourier filter optimized image
    Fig. 5. Fourier filter optimized image
    Fourier filter optimized image
    Fig. 6. Fourier filter optimized image
    Laser irradiation and identification of SCD
    Fig. 7. Laser irradiation and identification of SCD
    Comparison of FE-SEM results of laser irradiation and OM identification of SCD irradiated by laser
    Fig. 8. Comparison of FE-SEM results of laser irradiation and OM identification of SCD irradiated by laser
    Dependency of SCD D2 and lnPavg
    Fig. 9. Dependency of SCD D2 and lnPavg
    Laser irradiation and identification of MCD
    Fig. 10. Laser irradiation and identification of MCD
    SEM image of MCD irradiated by femtosecond laser
    Fig. 11. SEM image of MCD irradiated by femtosecond laser
    400 µW laser-irradiated MCD AFM image
    Fig. 12. 400 µW laser-irradiated MCD AFM image
    Dependency of MCD D2 andlnPavg
    Fig. 13. Dependency of MCD D2 andlnPavg
    Daqi ZHANG, Yun ZHONG, Tao CHEN, Yu ZHANG, Yubin SHI, Jinhai SI, Xun HOU. Automatic Measurement of Femtosecond Laser Damage Threshold on Diamond Surface Based on Image Recognition Algorithm[J]. Acta Photonica Sinica, 2025, 54(3): 0312002
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