Abstract
A polarization imager is provided that includes a plurality of CMOS photodetectors and a plurality of polarization filters. Each of the plurality of CMOS photodetectors has a photodiode that is configured to operate in forward bias mode. Further, each of the plurality of polarization filters is monolithically integrated with a corresponding one of the plurality of CMOS photodetectors. Each of the plurality of photodiodes exhibits a logarithmic response to a flux of incident photons. The polarization imager achieves a dynamic range of at least 100 decibels with a signal-to-noise ratio of at least 60 decibels.
Original language | English (US) |
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U.S. patent number | 11546539 |
Filing date | 9/27/19 |
State | Published - Jan 3 2023 |