High-performance Sagnac interferometer using cooled detectors for infrared LWIR hyperspectral imaging

Paul G. Lucey; Keith Horton; Tim Williams

doi:10.1117/12.718560

30 April 2007 High-performance Sagnac interferometer using cooled detectors for infrared LWIR hyperspectral imaging

Paul G. Lucey, Keith Horton, Tim Williams

Proceedings Volume 6546, Airborne Intelligence, Surveillance, Reconnaissance (ISR) Systems and Applications IV; 654604 (2007) https://doi.org/10.1117/12.718560
Event: Defense and Security Symposium, 2007, Orlando, Florida, United States

Abstract

An interferometric spectrometer is proposed for low resource LWIR hyperspectral imaging. Scaling from an uncooled LWIR HSI system, we find that signal to noise ratios of 1000 or higher can be achieved with cooled detectors and uncooled optics. Signal flux is high enough to collect high quality data at very high rates (500Hz and above). Sensitivity is limited by the full well of the detector and the spectral resolution for scenes at typical temperatures.

Citation Download Citation

Paul G. Lucey, Keith Horton, and Tim Williams "High-performance Sagnac interferometer using cooled detectors for infrared LWIR hyperspectral imaging", Proc. SPIE 6546, Airborne Intelligence, Surveillance, Reconnaissance (ISR) Systems and Applications IV, 654604 (30 April 2007); https://doi.org/10.1117/12.718560

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