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Chinese Journal of Lasers, Volume. 50, Issue 24, 2402404(2023)

Analysis of Diamond Micropores Forming and Defects Characteristics Under Different Laser Powers

Chunyan Dong1, Xiaoyu Zhang2, Dehua Gu1, Siwu Shao1, Jinlong Liu1, Liangxian Chen1, Chengming Li1, and Junjun Wei1,3、*
Author Affiliations
  • 1Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China
  • 2Beijing Institute of Remote Sensing Equipment, Beijing 100854, China
  • 3Shunde Graduate School, University of Science and Technology Beijing, Foshan 528399, Guangdong, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (12)
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    References (27)
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    Figures & Tables(12)
    Schematic of laser processing equipment

    Fig. 1. Schematic of laser processing equipment

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    SEM morphology of the outer surface of diamond micropores at different laser powers. (a) 11.9 W; (b) 13.8 W; (c) 15.7 W; (d) 17.6 W; (e) 19.5 W; (f) local magnification of the outer surface edge of the micropore in Fig. 2(b)

    Fig. 2. SEM morphology of the outer surface of diamond micropores at different laser powers. (a) 11.9 W; (b) 13.8 W; (c) 15.7 W; (d) 17.6 W; (e) 19.5 W; (f) local magnification of the outer surface edge of the micropore in Fig. 2(b)

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    SEM images of the internal surface of diamond micropores at different laser powers. (a) 11.9 W; (b) 13.8 W; (c) 15.7 W; (d) 17.6 W; (e) 19.5 W; (f) upper end of the micropore; (g) middle end of the micropore; (h) lower end of the micropore

    Fig. 3. SEM images of the internal surface of diamond micropores at different laser powers. (a) 11.9 W; (b) 13.8 W; (c) 15.7 W; (d) 17.6 W; (e) 19.5 W; (f) upper end of the micropore; (g) middle end of the micropore; (h) lower end of the micropore

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    Profile diagram and taper change histogram of diamond micropores at different laser powers. (a) Profile diagram; (b) taper change histogram

    Fig. 4. Profile diagram and taper change histogram of diamond micropores at different laser powers. (a) Profile diagram; (b) taper change histogram

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    C1s spectra of diamond surface at different powers. (a) 11.9 W; (b) 13.8 W; (c) 15.7 W; (d) 17.6 W; (e) 19.5 W; (f) proportion of sp2 to sp3 at different powers

    Fig. 5. C1s spectra of diamond surface at different powers. (a) 11.9 W; (b) 13.8 W; (c) 15.7 W; (d) 17.6 W; (e) 19.5 W; (f) proportion of sp2 to sp3 at different powers

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    Raman spectra of laser ablation outer surfaces at different powers

    Fig. 6. Raman spectra of laser ablation outer surfaces at different powers

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    Raman spectra of the inner surface of diamond at different laser powers

    Fig. 7. Raman spectra of the inner surface of diamond at different laser powers

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    Stress under different laser powers

    Fig. 8. Stress under different laser powers

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    Relationship between the natural logarithm of laser power and the square of the diameter of the micropores

    Fig. 9. Relationship between the natural logarithm of laser power and the square of the diameter of the micropores

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    Schematic diagram of energy transfer during laser processing diamond micropores

    Fig. 10. Schematic diagram of energy transfer during laser processing diamond micropores

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    • Table 1. Raman spectral fitting data of micropores outer surfaces at different powers

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      Table 1. Raman spectral fitting data of micropores outer surfaces at different powers

      Power /WLocation of D-peak /cm-1Location of G-peak /cm-1ID/IG
      11.91349.931588.471.06
      13.81351.551588.340.92
      15.71352.371588.311.01
      17.61352.541588.901.19
      19.51352.211590.120.91

    • Table 2. Raman spectral fitting data of the inner surface of micropores at different powers

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      Table 2. Raman spectral fitting data of the inner surface of micropores at different powers

      Power /WLocating of D-peak /cm-1Location of G-peak /cm-1ID/IG
      11.91588.74
      13.81352.091586.540.43
      15.71353.431581.700.45
      17.61351.731584.201.05
      19.51347.431577.451.54
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    Chunyan Dong, Xiaoyu Zhang, Dehua Gu, Siwu Shao, Jinlong Liu, Liangxian Chen, Chengming Li, Junjun Wei. Analysis of Diamond Micropores Forming and Defects Characteristics Under Different Laser Powers[J]. Chinese Journal of Lasers, 2023, 50(24): 2402404

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    Paper Information

    Category: Laser Micro-Nano Manufacturing

    Received: Apr. 17, 2023

    Accepted: Jul. 21, 2023

    Published Online: Nov. 17, 2023

    The Author Email: Wei Junjun (weijj@ustb.edu.cn)

    DOI:10.3788/CJL230739

    Topics

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