Infrared and Laser Engineering, Volume. 54, Issue 5, 20240411(2025)

Research of 532 nm/1 064 nm dual-band high reflective coatings applied in space-based lidar

Yu YUN... Chunxia WU, Minglei ZHANG and Yuejian CHEN |Show fewer author(s)
Author Affiliations
  • Jiu Yuan High-Tech Equipment Corporation, Beijing100094, China
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    Figures & Tables(7)
    Design spectrum at 0° incidence
    Simulation of electric field distribution under laser irradiation at (a) 532 nm and (b) 1064 nm at 0° incidence
    Schematic diagram of the film layer
    Spectra in vacuum and atmosphere. (a) EB multilayer film before ALD-Al2O3 coverage; (b) EB multilayer film after ALD-Al2O3 coverage
    Damage threshold at 532 nm laser: (a) EB multilayer film before ALD-Al2O3 coverage; (b) EB multilayer film after ALD-Al2O3 coverage. And damage threshold at 1 064 nm laser: (c) EB multilayer film before ALD-Al2O3 coverage; (d) EB multilayer film after ALD-Al2O3 coverage
    • Table 1. Spectral drift in vacuum and atmosphere

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      Table 1. Spectral drift in vacuum and atmosphere

      Preparation methodSpectral shiftAverage shift ratio
      EB28 nm@1064 nm13 nm@532 nm2.5%
      EB+ALD3 nm@1064 nm1 nm@532 nm0.3%
    • Table 2. Damage threshold in vacuum

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      Table 2. Damage threshold in vacuum

      Preparation methodLaser damage threshold
      EB44.5 J/cm2@1064 nm15.7 J/cm2@532 nm
      EB+ALD41.5 J/cm2@1064 nm13.1 J/cm2@532 nm
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    Yu YUN, Chunxia WU, Minglei ZHANG, Yuejian CHEN. Research of 532 nm/1 064 nm dual-band high reflective coatings applied in space-based lidar[J]. Infrared and Laser Engineering, 2025, 54(5): 20240411

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    Paper Information

    Category: Laser

    Received: Jan. 2, 2025

    Accepted: --

    Published Online: May. 26, 2025

    The Author Email:

    DOI:10.3788/IRLA20240411

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