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Absolute linearity measurements on HgCdTe detectors in the infrared region.

Theocharous, E; Ishii, J*; Fox, N P (2004) Absolute linearity measurements on HgCdTe detectors in the infrared region. Appl. Opt., 43 (21). pp. 4182-4188.

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Abstract

The nonlinearity characteristics of photoconductive and photovoltaic HgCdTe detectors were experimentally investigated in the infrared wavelength region by use of the National Physical Laboratory detector linearity measurement facility. The nonlinearity of photoconductive HgCdTe detectors was shown to be a function of irradiance rather than the total radiant power incident on the detector. Photoconductive HgCdTe detectors supplied by different vendors were shown to have similar linearity characteristics for wavelengths around 10 μm. However, the nonlinearity of response of a photovoltaic HgCdTe detector was shown to be significantly lower than the corresponding value for photoconductive HgCdTe detectors at the same wavelength.

Item Type: Article
Keywords: radiometry
Subjects: Optical Radiation and Photonics
Optical Radiation and Photonics > Radiometry and Detectors
Last Modified: 02 Feb 2018 13:16
URI: http://eprintspublications.npl.co.uk/id/eprint/3020

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