Journal of Sensors and Sensor Systems
Journal of Sensors and Sensor Systems
JSSS
Articles | Volume 10, issue 1
Articles | Volume 10, issue 1
https://doi.org/10.5194/jsss-10-109-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/jsss-10-109-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 10, issue 1
Regular research article
 | 
23 Apr 2021
Regular research article |  | 23 Apr 2021

Absolute calibration of the spectral responsivity of thermal detectors in the near-infrared (NIR) and mid-infrared (MIR) regions by using blackbody radiation

Tobias Pohl, Peter Meindl, Lutz Werner, Uwe Johannsen, Dieter Taubert, Christian Monte, and Jörg Hollandt

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Latest update: 16 Sep 2026
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Short summary
The Physikalisch-Technische Bundesanstalt has set up a primary method for the calibration of the spectral responsivity of thermal detectors in the near- and mid-infrared spectral range. This method uses the calculable radiation of a blackbody radiator and optical bandpass filters. The obtained results with relative standard measurement uncertainties between 5 % and 19 % are consistent with previous calibrations at PTB's national primary detector standard and extend the usable wavelength range.
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