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

Howard W. Yoon; George P. Eppeldauer; Vladimir B. Khromchenko

doi:10.1117/12.783771

15 May 2008 Infrared collimator calibrations using regular glass optics and short-wave infrared detectors

Howard W. Yoon, George P. Eppeldauer, Vladimir B. Khromchenko

Proceedings Volume 6940, Infrared Technology and Applications XXXIV; 694038 (2008) https://doi.org/10.1117/12.783771
Event: SPIE Defense and Security Symposium, 2008, Orlando, Florida, United States

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.

Citation Download Citation

Howard W. Yoon, George P. Eppeldauer, and Vladimir B. Khromchenko "Infrared collimator calibrations using regular glass optics and short-wave infrared detectors", Proc. SPIE 6940, Infrared Technology and Applications XXXIV, 694038 (15 May 2008); https://doi.org/10.1117/12.783771

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