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Chinese Journal of Lasers, Volume. 44, Issue 8, 803002(2017)

Strong Absorption Film of Metal-Dielectric Interference of Solar Spectrum

Fu Xiuhua*, Guo Kai, Zhang Jing, Xiong Shifu, Jiang Hongyan, and Sun Bing
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    AbstractGet PDF(in Chinese)
    Figures&Tables (15)
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    References (14)
    Cited By (3)
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    Figures & Tables(15)
    Solar irradiance curve

    Fig. 1. Solar irradiance curve

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    Schematic of the film layers

    Fig. 2. Schematic of the film layers

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    Three-point absorption design curve

    Fig. 3. Three-point absorption design curve

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    Relative intensity curves of light propagation in each layer

    Fig. 4. Relative intensity curves of light propagation in each layer

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    Structure model of absorption film

    Fig. 5. Structure model of absorption film

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    Absorption spectra of Cr films with different thicknesses

    Fig. 6. Absorption spectra of Cr films with different thicknesses

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    Absorption design curve with the anti-reflection of SiO2

    Fig. 7. Absorption design curve with the anti-reflection of SiO2

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    Absorption design curve with the anti-reflection of MgF2

    Fig. 8. Absorption design curve with the anti-reflection of MgF2

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    Measured spectrum of absorption film. (a) Reflectance; (b) transmittance

    Fig. 9. Measured spectrum of absorption film. (a) Reflectance; (b) transmittance

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    Schematic of independent sensitivity of the film

    Fig. 10. Schematic of independent sensitivity of the film

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    Measured curve of reflection spectrum after optimization

    Fig. 11. Measured curve of reflection spectrum after optimization

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    Measured curve of reflection spectrum after the second optimization

    Fig. 12. Measured curve of reflection spectrum after the second optimization

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    Absorption spectra before and after optimization

    Fig. 13. Absorption spectra before and after optimization

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    • Table 1. Technical parameters of the absorption film

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      Table 1. Technical parameters of the absorption film

      ParameterSpecification
      SubstrateK9、Al、Cu、Mg-Al
      Incident angle /(°)0
      Spectrum range /nm400-2500
      Absorptance /%≥98

    • Table 2. Deposition process parameters

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      Table 2. Deposition process parameters

      MaterialTemperatureDegree of vacuum /(10-3 Pa)Deposition rate /(nm·s-1)
      Crunbaked1.00.3
      SiO2unbaked1.00.7
      MgF2250 ℃1.00.8
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    Fu Xiuhua, Guo Kai, Zhang Jing, Xiong Shifu, Jiang Hongyan, Sun Bing. Strong Absorption Film of Metal-Dielectric Interference of Solar Spectrum[J]. Chinese Journal of Lasers, 2017, 44(8): 803002

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    Paper Information

    Category: materials and thin films

    Received: May. 2, 2017

    Accepted: --

    Published Online: Sep. 13, 2017

    The Author Email: Xiuhua Fu (goptics@126.com)

    DOI:10.3788/CJL201744.0803002

    Topics

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