Polarized-pixel performance model for DoFP polarimeter
B Feng, Z Shi, H Liu, L Liu, Y Zhao, J Zhang - Journal of Optics, 2018 - iopscience.iop.org
B Feng, Z Shi, H Liu, L Liu, Y Zhao, J Zhang
Journal of Optics, 2018•iopscience.iop.orgA division of a focal plane (DoFP) polarimeter is manufactured by placing a micropolarizer
array directly onto the focal plane array (FPA) of a detector. Each element of the DoFP
polarimeter is a polarized pixel. This paper proposes a performance model for a polarized
pixel. The proposed model characterizes the optical and electronic performance of a
polarized pixel by three parameters. They are respectively major polarization responsivity,
minor polarization responsivity and polarization orientation. Each parameter corresponds to …
array directly onto the focal plane array (FPA) of a detector. Each element of the DoFP
polarimeter is a polarized pixel. This paper proposes a performance model for a polarized
pixel. The proposed model characterizes the optical and electronic performance of a
polarized pixel by three parameters. They are respectively major polarization responsivity,
minor polarization responsivity and polarization orientation. Each parameter corresponds to …
Abstract
A division of a focal plane (DoFP) polarimeter is manufactured by placing a micropolarizer array directly onto the focal plane array (FPA) of a detector. Each element of the DoFP polarimeter is a polarized pixel. This paper proposes a performance model for a polarized pixel. The proposed model characterizes the optical and electronic performance of a polarized pixel by three parameters. They are respectively major polarization responsivity, minor polarization responsivity and polarization orientation. Each parameter corresponds to an intuitive physical feature of a polarized pixel. This paper further extends this model to calibrate polarization images from a DoFP (division of focal plane) polarimeter. This calibration work is evaluated quantitatively by a developed DoFP polarimeter under varying illumination intensity and angle of linear polarization. The experiment proves that our model reduces nonuniformity to 6.79% of uncalibrated DoLP (degree of linear polarization) images, and significantly improves the visual effect of DoLP images.
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