30 August 2004 Recent progress in the application of large-format and multispectral QWIP IRFPAs
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Abstract
In recent years quantum well infrared (IR) photodetector (QWIP) focal plane array (FPA) technology has developed to the point where it may be considered a candidate for insertion into 3rd generation FLIR systems. Both large format (1024x1024 pixels) and multicolor (MWIR/LWIR and LWIR/LWIR) FPAs have been produced using QWIP technology. We report on the application of these new FPAs to the challenges facing today's military. These include the collection of signatures of buried land mines with a LWIR/LWIR dual-color QWIP and long-range target detection/identification using a 1024x1024 FPA. The FPAs were produced from several sources. Large format LWIR FPAs were made by an ARL/NASA/Rockwell team using ARL’s C-QWIP optical coupling scheme. Another large-format FPA was obtained from QWIP Technologies, Inc. and is commercially available. The dual-color LWIR/LWIR FPA was produced by BAE Systems. Laboratory and field imagery from both types of FPAs are presented and analyzed.
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Arnold C. Goldberg, Arnold C. Goldberg, Kwong-Kit Choi, Kwong-Kit Choi, } "Recent progress in the application of large-format and multispectral QWIP IRFPAs", Proc. SPIE 5406, Infrared Technology and Applications XXX, (30 August 2004); doi: 10.1117/12.540400; https://doi.org/10.1117/12.540400
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