13 March 2015 Design, fabrication and characterization of a polarization-sensitive focal plane array
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Abstract
Measurement of polarization is a powerful yet underutilized technique, with potential applications in remote sensing, astronomy, biomedical imaging and optical metrology. We present the design, fabrication and characterization of a CCD-based polarization-sensitive focal plane array (FPA). These devices are compact permanently aligned detectors capable of determining the degree and angle of linear polarization in a scene, with a single exposure, over a broad spectral range. To derive the polarization properties, we employ a variation of the division-of-focal plane modulation strategy. The devices are fabricated by hybridizing a micropolarizer array (MPA) with a CCD. The result is a "general-purpose" polarization-sensitive imaging sensor, which can be placed at the focal plane of a wide number of imaging systems (and even spectrographs). We present our efforts to date in developing this technology and examine the factors that fundamentally limit the performance of these devices.
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Dmitry Vorobiev, Zoran Ninkov, "Design, fabrication and characterization of a polarization-sensitive focal plane array", Proc. SPIE 9403, Image Sensors and Imaging Systems 2015, 94030A (13 March 2015); doi: 10.1117/12.2083391; https://doi.org/10.1117/12.2083391
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