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21 October 2004 Perspectives on dualband infrared focal plane array efforts
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Over the years there has been considerable investments in dualband infrared focal plane array (FPA) technology. Both quantum well photodetector and HgCdTe photovoltaic approaches have now achieved dualband-imaging capability. The fruits of these investments are being realized with FPAs that approach levels of performance and maturity sufficiently high to meet end-user needs. Dualband FPAs were developed primarily in support of conceptual surveillance, acquisition and tracking scenarios for a variety of target types. These dualband FPAs may be considered the functional equivalent of dual-channel imagers comprising a dichroic beamsplitter and two distinct FPAs. The volume and cooling requirements of the dual-channel imagers are appreciable relative to the single, dualband FPA. Novel spectral imaging concepts are also enabled with the current dual band, and future multi-waveband, FPA technologies.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Paul D. LeVan "Perspectives on dualband infrared focal plane array efforts", Proc. SPIE 5563, Infrared Systems and Photoelectronic Technology, (21 October 2004);

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