New applications with a SWIR imager employing extended wavelengths

Gil A. Tidhar; Ram Segal

doi:10.1117/12.884435

20 May 2011 New applications with a SWIR imager employing long wavelengths

Gil A. Tidhar, Ram Segal

Author Affiliations +

Proceedings Volume 8012, Infrared Technology and Applications XXXVII; 801207 (2011) https://doi.org/10.1117/12.884435
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

SWIR imagers can operate at near room temperature with cut-off wavelengths that extended from 1.7μm (for InP lattice matched InGaAs) to beyond 2.0μm with strained InGaAs epitaxial growth on InP substrate. A leading application in the SWIR band - Night vision, requires very low dark current levels, whereas the dark current increases as the cutoff wavelength increases. We demonstrate imaging applications made possible by utilization of dark current reduction, and the physics of background and objects radiance. A newly built imager is presented.

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Gil A. Tidhar and Ram Segal "New applications with a SWIR imager employing long wavelengths", Proc. SPIE 8012, Infrared Technology and Applications XXXVII, 801207 (20 May 2011); https://doi.org/10.1117/12.884435

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