Journal
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
Volume 32, Issue 4, Pages 5215-5221Publisher
SPRINGER
DOI: 10.1007/s10854-021-05253-6
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The radiometry laboratory at NIS has improved spectral responsivity facilities for optical detector measurements, utilizing lamp-monochromator setups with silicon and InGaAs detectors to extend into the infrared range. The uncertainty contribution for silicon-based detectors is less than 1-1.9% in the 300-1100 nm range, and for InGaAs-based detectors it is about 2-3.8% in the 800-1600 nm range. The facilities are now fully automated and controlled by LabVIEW.
The radiometry laboratory at the National Institute of Standards (NIS) has taken in his shoulder to develop and improve the spectral responsivity facilities to get high precision and more reliable optical detectors measurements. During the last few years, the calibration of the detectors was refined as well as the reliability of spectral responsivity results, especially in the critical ultra-violet and infrared range of the spectrum. This setup was constructed using a lamp-monochromator-based setup accompanied by a silicon trap detector and an Indium Gallium Arsenide (InGaAs) detector to extend the scale to the infrared (IR) spectral region. Both detectors are traceable and shown to be spatially uniform, linear, stable, and capable of disseminating an absolute spectral responsivity scale. The uncertainty contribution of the spectral responsivity for a silicon-based detector is less than 1-1.9% for the spectral range 300-1100 nm, and about 2-3.8 % (k = 2) for InGaAs-based detector in the wavelength range 800-1600 nm. Additionally, this paper gives a comprehensive overview of' NIS's spectral responsivity facilities, which are now fully automated and controlled by LabVIEW.
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