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.
Room temperature 640x512 pixel near-infrared InGaAs focal plane array
Infrared Detectors and Focal Plane Arrays VI ; 2000 ; Orlando,FL,USA
Proc. SPIE ; 4028
2000-07-17
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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