Infrared and Laser Engineering, Volume. 51, Issue 7, 20210537(2022)

Experimental study on a CMOS image sensor damaged by a composite laser

Mengzhen Zhu, Yun Liu, Chaowei Mi, Jingsong Wei, Xia Chen, Fangtao Tian, Sumao Feng, and Sai Wang
Author Affiliations
  • Ordnance NCO Academy, Army Engineering University of PLA, Wuhan 430075, China
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    Figures & Tables(10)
    Structure diagram of CMOS
    Schematic diagram of double wavelength composite laser damage experimental scheme
    Schematic diagram of double pulse width composite laser damage experimental scheme
    Damage effect picture of the CMOS under increasing 10 ns laser energy. (a)-(c) Damage effect of 1064 nm laser on CMOS; (d)-(f) Damage effect of 532 nm laser on CMOS
    Damage effect picture of the CMOS with lens under increasing 1064 nm laser energy. (a) Damage effect of 0.4 ms laser on CMOS; (b)-(e) Damage effect of 10 ns laser on CMOS
    Damage effect picture of double wavelength composite laser on CMOS. (a) Green spot damage; (b) Cross line damage; (c) Complete damage
    Damage effect picture of double pulse width composite laser on CMOS. (a) White spot damage; (b) Cross line damage; (c) Complete damage
    • Table 1. Damage threshold of CMOS with lens by different pulse width laser

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      Table 1. Damage threshold of CMOS with lens by different pulse width laser

      Pulse widthLaser pulse power density/W·cm−2Laser pulse energy density/mJ·cm−2
      0.4 ms9.6×1033.84×103
      10 ns4×1054
    • Table 2. Comparison of damage threshold between double wavelength composite laser and single wavelength laser

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      Table 2. Comparison of damage threshold between double wavelength composite laser and single wavelength laser

      Wavelength/nmOutput laser energy/mJComplete damage
      Laser energy/mJLaser pulse power density/W·cm-2Laser pulse energy density/mJ·cm-2
      1064451.913.8×107380.2
      532560.801.6×107159.7
      1064+532351.192.4×107236.9
    • Table 3. Comparison of damage threshold between double pulse width composite laser and single pulse width laser

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      Table 3. Comparison of damage threshold between double pulse width composite laser and single pulse width laser

      Pulse widthSpot damageComplete damage
      Laser energy/mJLaser energy/mJLaser pulse power density/W·cm−2Laser pulse energy density/mJ·cm−2
      10 ns1.481.913.8×107380.2
      0.4 ms--9.1×1053.65×105
      10 ns+0.4 ms1.03+311.46+312.9×107+1.5×104(10 ns laser action time) 1.5×104(other time) 290.6+6.17×103
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    Mengzhen Zhu, Yun Liu, Chaowei Mi, Jingsong Wei, Xia Chen, Fangtao Tian, Sumao Feng, Sai Wang. Experimental study on a CMOS image sensor damaged by a composite laser[J]. Infrared and Laser Engineering, 2022, 51(7): 20210537

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    Paper Information

    Category: Lasers & Laser optics

    Received: Aug. 4, 2021

    Accepted: --

    Published Online: Dec. 20, 2022

    The Author Email:

    DOI:10.3788/IRLA20210537

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