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Acta Optica Sinica, Volume. 41, Issue 9, 0907001(2021)

Numerical Simulation Analysis of Portable High-Speed FTIR Rotary Interferometers

Liguo Qu1,2,3, Liang Xu1、*, Jianguo Liu1, Mingchun Feng4, Wenqing Liu1, Hanyang Xu1, and Ling Jin1
Author Affiliations
  • 1Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, Anhui 230031, China
  • 2University of Science and Technology of China, Hefei, Anhui 230026, China
  • 3School of Physics and Electronic Information, Anhui Normal University, Wuhu, Anhui 241002, China
  • 4School of Mechanical and Electrical Engineering, Chuzhou University, Chuzhou, Anhui 239000, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (12)
    Equations (0)
    References (15)
    Cited By (2)
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    Figures & Tables(12)
    Rotary scanning interferometer

    Fig. 1. Rotary scanning interferometer

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    Reference coordinate system

    Fig. 2. Reference coordinate system

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    Optical path diagram of rotating mirror

    Fig. 3. Optical path diagram of rotating mirror

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    Variation curve of optical path difference during rotation period

    Fig. 4. Variation curve of optical path difference during rotation period

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    Optical path variation curve with refractive index and angle

    Fig. 5. Optical path variation curve with refractive index and angle

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    Square of optical path difference linear fitting error

    Fig. 6. Square of optical path difference linear fitting error

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    First derivative of optical path curves with different refractive indices

    Fig. 7. First derivative of optical path curves with different refractive indices

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    Linear fitting residual

    Fig. 8. Linear fitting residual

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    Optical path difference linear fitting and residual error

    Fig. 9. Optical path difference linear fitting and residual error

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    Optical path difference polynomial fitting and residual error

    Fig. 10. Optical path difference polynomial fitting and residual error

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    Optical path difference sampling interval

    Fig. 11. Optical path difference sampling interval

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    • Table 1. Refractive index of ZnSe in medium infrared band

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      Table 1. Refractive index of ZnSe in medium infrared band

      Wavelength /μmRefractiveindexWavelength /μmRefractiveindex
      1.02.48929.02.4122
      2.22.44379.82.4077
      2.62.440110.22.4053
      3.02.437611.02.4001
      4.22.432412.22.3915
      4.62.430913.02.3850
      5.02.429514.22.3744
      6.22.425115.02.3665
      6.62.423516.22.3534
      7.02.421817.02.3448
      8.22.416318.22.3278
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    Liguo Qu, Liang Xu, Jianguo Liu, Mingchun Feng, Wenqing Liu, Hanyang Xu, Ling Jin. Numerical Simulation Analysis of Portable High-Speed FTIR Rotary Interferometers[J]. Acta Optica Sinica, 2021, 41(9): 0907001

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    Paper Information

    Category: Fourier Optics and Signal Processing

    Received: Oct. 16, 2020

    Accepted: Dec. 2, 2020

    Published Online: May. 8, 2021

    The Author Email: Xu Liang (xuliang@aiofm.ac.cn)

    DOI:10.3788/AOS202141.0907001

    Topics

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