21 December 1998 Performance of a four-channel polarimeter with very low light level detection
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We examine the low light level performance of a four-channel polarimeter with a single photon counting sensor associated with each channel. Specifically, we investigate how the detection noise propagates through the polarimeter calibration matrix and influences the estimation of I1 and I2, the intensities in two orthogonal polarization states and, (delta) , the phase delay between the two orthogonal states. The error in estimating the phase delay is first derived in the small angle approximation for low light levels. The approximation is removed by deriving a general formalism valid for arbitrary light levels including very low light levels. A specific polarimeter design is examined and quantitative examples are shown and discussed for that polarimeter.
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Victor L. Gamiz, Victor L. Gamiz, } "Performance of a four-channel polarimeter with very low light level detection", Proc. SPIE 3498, Sensors, Systems, and Next-Generation Satellites II, (21 December 1998); doi: 10.1117/12.333658; https://doi.org/10.1117/12.333658

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