Calibration of a HgCdTe detectors at long-infrared wavelengths with the high-accuracy cryogenic radiometer

Hong bo Liu; Xue Shun Shi; Wen bin Xu; Chang ming Liu; Xin gang Zhuang; Peng ju Zhang; Heng fei Wang

doi:10.1117/12.2576123

5 November 2020 Calibration of a HgCdTe detectors at long-infrared wavelengths with the high-accuracy cryogenic radiometer

Hong bo Liu, Xue Shun Shi, Wen bin Xu, Chang ming Liu, Xin gang Zhuang, Peng ju Zhang, Heng fei Wang

Author Affiliations +

Proceedings Volume 11563, AOPC 2020: Infrared Device and Infrared Technology; 1156305 (2020) https://doi.org/10.1117/12.2576123
Event: Applied Optics and Photonics China (AOPC 2020), 2020, Beijing, China

Abstract

To meet the growing need for calibrated detector at long-infrared wavelengths, we are reporting on a laser-based absolute spectral responsivity scale of the detector in the long-infrared spectral region. The high-accuracy cryogenic radiometer (HACR) is a cryogenic electrical substitution radiometer that serves as a primary standard for optical power measurements. We measured the transfer standard HgCdTe/sphere detectors at 9.28μm, 9.62μm, 10.26μm and 10.60μm, respectively. The experimental results show that the extended uncertainty of optical power measurement was less than 0.30%～0.42% (k = 2); The extended uncertainty of the absolute spectral responsivity measurement has been analyzed to be 0.80%～1.02% (k = 2).

Citation Download Citation

Hong bo Liu, Xue Shun Shi, Wen bin Xu, Chang ming Liu, Xin gang Zhuang, Peng ju Zhang, and Heng fei Wang "Calibration of a HgCdTe detectors at long-infrared wavelengths with the high-accuracy cryogenic radiometer", Proc. SPIE 11563, AOPC 2020: Infrared Device and Infrared Technology, 1156305 (5 November 2020); https://doi.org/10.1117/12.2576123

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