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Quantum well infrared photodetectors (QWIPs) are well known for their stability, high pixel-pixel uniformity and high pixel operability which are quintessential parameters for large area imaging arrays. In this paper we report the first demonstration of the megapixel-simultaneously-readable and pixel-co-registered dual-band QWIP focal plane array (FPA). The dual-band QWIP device was developed by stacking...
In this review paper the peculiarities of using the indium arsenide multielement CID photodetectors in multi-channel spectrometry and FPA-based infrared thermography are presented. It is shown that the short-wave narrow band infrared thermography and wide band spectrometry realized on the base of such detectors are able to solve in full measure the problems inherent to the above-mentioned scientific-technical...
An airborne thermal hyperspectral imager is under development which utilizes the compact Dyson optical configuration and quantum well infrared photo detector (QWIP) focal plane array. The Dyson configuration uses a single monolithic prism-like grating design which allows for a high throughput instrument (F/1.6) with minimal ghosting, stray-light and large swath width. The configuration has the potential...
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