Spectroscopy and Spectral Analysis, Volume. 40, Issue 12, 3680(2020)

Long-Wave Infrared Absolute Spectral Responsivity Scale by Using an Absolute Cryogenic Radiometer

Hong-bo LIU1,1、*, Xue-shun SHI1,1, Wen-bin XU1,1, Chang-ming LIU1,1, Hong-yuan LIU1,1, and Heng-fei WANG1,1
Author Affiliations
  • 1[in Chinese]
  • 11. The 41st Research Institute of China Electronics Technology Group Corporation, Qingdao 266555, China
  • show less
    Figures & Tables(9)
    Diagram of the absolute spectral responsivity calibration facility of Long-wave infrared detectorAF: Attenuator; M1, M2, M3, M4, M5, M6: Gold steering mirrors; BS1, BS2: Beam splitters;HW: Half-wave plate; P0, P1, P2, P3, P4: Polarizers; F1, F2, F3, F4: Lenses; CP: Chopper;EOM: Electro-optic modulator; PH: Pinhole; AP1, AP2: Aperture; DM: Dichroic mirror; S: Shutter
    The test results of long wave infrared laser power stability
    Beam profiles of the long-wave laser at 10.6 μm before (a) and after (b) the spatial filter
    Diagram of transfer standard detector structure
    The spatial uniformity of the response of the HgCdTe detector at 10.6 μm
    • Table 1. Absolute spectral responsivity of the transfer standard detector at 9.62 μm

      View table
      View in Article

      Table 1. Absolute spectral responsivity of the transfer standard detector at 9.62 μm

      Wavelength
      /μm
      Optical
      power/μW
      Absolute responsivity
      /(V·W-1)
      9.62371.73619.12
      371.82621.66
      371.08616.56
      371.10618.33
      371.71619.01
      371.54622.32
    • Table 2. Absolute spectral responsivity of the transfer standard detector at 10.60 μm

      View table
      View in Article

      Table 2. Absolute spectral responsivity of the transfer standard detector at 10.60 μm

      Wavelength
      /μm
      Optical
      power/μW
      Absolute responsivity
      /(V·W-1)
      10.60338.93743.07
      338.51747.17
      338.32741.04
      386.26745.21
      385.80743.12
      385.42740.24
    • Table 3. The components of the combined relative standard uncertainty associated with the measurement of the optical power of the long-wave infrared laser using the absolute cryogenic radiometer

      View table
      View in Article

      Table 3. The components of the combined relative standard uncertainty associated with the measurement of the optical power of the long-wave infrared laser using the absolute cryogenic radiometer

      Source of
      uncertainty
      TypeRelative standard
      uncertainty/%
      Cavity absorbanceB0.006
      Window transmittanceA0.130
      Sensitivity of radiometerB0.001
      Electrical measurementB0.002
      Measurement repeatabilityA0.071~0.166
      Combined uncertainty0.15~0.21
      Expended uncertainty (k=2)0.30~0.42
    • Table 4. The contributing components to the uncertainty of the absolute spectral responsivity of the transfer stander detector in the long-wave infrared region

      View table
      View in Article

      Table 4. The contributing components to the uncertainty of the absolute spectral responsivity of the transfer stander detector in the long-wave infrared region

      Source of uncertaintyTypeRelative standard
      uncertainty/%
      Optical power measurementB0.150~0.210
      Response voltageB0.003
      Lock-inB0.030
      Chopper stabilityB0.010
      Detector spatial uniformityB0.120
      Temperature variationB0.012
      Measurement repeatabilityA0.346~0.448
      Combined uncertainty0.40~0.51
      Expended uncertainty (k=2)0.80~1.02
    Tools

    Get Citation

    Copy Citation Text

    Hong-bo LIU, Xue-shun SHI, Wen-bin XU, Chang-ming LIU, Hong-yuan LIU, Heng-fei WANG. Long-Wave Infrared Absolute Spectral Responsivity Scale by Using an Absolute Cryogenic Radiometer[J]. Spectroscopy and Spectral Analysis, 2020, 40(12): 3680

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: Research Articles

    Received: Oct. 1, 2019

    Accepted: --

    Published Online: Jun. 18, 2021

    The Author Email: Hong-bo LIU (lhbcetc@163.com)

    DOI:10.3964/j.issn.1000-0593(2020)12-3680-06

    Topics