12 September 2007 Corrugated QWIP developments for tactical infrared imaging
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Abstract
The corrugated quantum well infrared detector (C-QWIP) offers improvements to quantum efficiency and spectral bandwidth compared to current commercial QWIPs. In addition to improved performance, the C-QWIP also uses manufacturing processes that are mature and low cost. Thus, very large format focal plane arrays (FPAs) can be fabricated with high yield. There are two applications where the C-QWIP can provide cost effective solutions. The first is very large format long-wave infrared (LWIR) sensors. Most very large format FPAs operate in the mid-wave infrared (MWIR). The MWIR band has significantly lower flux than LWIR, therefore in situations where the backgrounds are cold or there is potential motion blur, the LWIR C-QWIP offers better performance. The second application is two-color registered high-resolution wide area imagery. ARL and CE have been developing both C-QWIP detectors and read-out integrated circuits to support these needs. This paper describes the progress we've made in developing high conversion efficiency LWIR C-QWIP FPAs and MWIR/LWIR two-color FPAs and our path forward to multimegapixel C-QWIP FPAs and sensors.
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David P. Forrai, David P. Forrai, Kwong-Kit Choi, Kwong-Kit Choi, John W. Devitt, John W. Devitt, } "Corrugated QWIP developments for tactical infrared imaging", Proc. SPIE 6660, Infrared Systems and Photoelectronic Technology II, 666010 (12 September 2007); doi: 10.1117/12.740311; https://doi.org/10.1117/12.740311
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