Room temperature 640x512 pixel near-infrared InGaAs focal plane array

Martin H. Ettenberg; Michael J. Lange; Matthew T. O'Grady; Jacobus S. Vermaak; Marshall J. Cohen; Gregory H. Olsen

doi:10.1117/12.391733

17 July 2000 Room temperature 640x512 pixel near-infrared InGaAs focal plane array

Martin H. Ettenberg, Michael J. Lange, Matthew T. O'Grady, Jacobus S. Vermaak, Marshall J. Cohen, Gregory H. Olsen

Proceedings Volume 4028, Infrared Detectors and Focal Plane Arrays VI; (2000) https://doi.org/10.1117/12.391733
Event: AeroSense 2000, 2000, Orlando, FL, United States

Abstract

We report on the performance of a 640 X 512 pixel, indium gallium arsenide (In₅₃Ga₄₇As) focal plane array (FPA). The device has 25 micrometer pixels and represents the largest and finest pitched imager demonstrated in this material system. The device is sensitive to the 0.9 micrometer-to-1.7 micrometer short wave infrared band and features a room temperature detectivity, D*, greater than 5 X 10¹² cm- (root)Hz/W with greater than 98% of the pixels operable. The performance of the In₅₃Ga₄₇As photodiode array is such that at room temperature the focal plane array is read noise- limited. The presentation will include a description of the FPA fabrication and assembly as well as characterization of dark current versus temperature, spectral response, and resolution. The implications of these results to applications such as passive night vision imaging, active illumination, covert surveillance, target designation using eye safe lasers, and target acquisition and tracking will be discussed.

Citation Download Citation

Martin H. Ettenberg, Michael J. Lange, Matthew T. O'Grady, Jacobus S. Vermaak, Marshall J. Cohen, and Gregory H. Olsen "Room temperature 640x512 pixel near-infrared InGaAs focal plane array", Proc. SPIE 4028, Infrared Detectors and Focal Plane Arrays VI, (17 July 2000); https://doi.org/10.1117/12.391733

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