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Proceedings Paper

Infrared collimator calibrations using regular glass optics and short-wave infrared detectors
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Paper Abstract

Short-wave infrared detectors and regular-glass optics are used to construct a calibrator for infrared collimators. The advantages of using short-wave infrared detectors with thermo-electric cooling instead of cryogenically-cooled infrared detectors are shown. Diffraction-limited imaging is obtained using off-the-shelf achromats for rejection of stray radiation and for collection of the thermal radiation. The design of a prototype calibrator is shown and the noise-equivalent irradiances (NEI) are determined using a separately calibrated, off-axis infrared collimator. The measured NEI of 7 fW/cm2 demonstrates at least several orders of magnitude better performance than existing infrared calibrators.

Paper Details

Date Published: 15 May 2008
PDF: 7 pages
Proc. SPIE 6940, Infrared Technology and Applications XXXIV, 694038 (15 May 2008); doi: 10.1117/12.783771
Show Author Affiliations
Howard W. Yoon, National Institute of Standards and Technology (United States)
George P. Eppeldauer, National Institute of Standards and Technology (United States)
Vladimir B. Khromchenko, National Institute of Standards and Technology (United States)
Utah State Univ. (United States)

Published in SPIE Proceedings Vol. 6940:
Infrared Technology and Applications XXXIV
Bjørn F. Andresen; Gabor F. Fulop; Paul R. Norton, Editor(s)

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