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Development of a Bolometer Detector System for the NIST High Accuracy Infrared Spectrophotometer



Yuqin Zong, Raju V. Datla


A bolometer detector system is developed for the high accuracy infrared spectropho-meter at the National Institute of Standards and Technology (NIST) to provide maximum sensitive, spatial uniformity and linearity of response covering the entire infrared spectral range. Th3e spatial response variation was measured to be within + or -0.1%. The linearity of the detector output was measured over three decades of input power. After applying a simple correction procedure, the detector output was found to deviate less than 0.2% from linear behavior over this range. The noise equivalent power (NEP) of the bolometer system was 6x10-12 W/Ohz at the frequency of 80 Hz. The detector output 3dB roll off frequency was 200 Hz. The detector output was stable to within + or -0.05% over a 15 minute period. These results demonstrate that the bolometer detector system will serve as an excellent detector for the high accuracy infrared spectrophotometer.
Journal of Research (NIST JRES) -


cryogenic bolometer, infrared detector, linearity, noise, spatial response, spectrophotometer


Zong, Y. and Datla, R. (1998), Development of a Bolometer Detector System for the NIST High Accuracy Infrared Spectrophotometer, Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed May 26, 2024)


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Created November 1, 1998, Updated February 19, 2017