Title :
A 1300 × 800, 700 mW, 30 fps spectral polarization imager
Author :
Garcia, Missael ; Shengkui Gao ; Edmiston, Christopher ; York, Timothy ; Gruev, Viktor
Author_Institution :
Dept. of Comput. Sci. & Eng., Washington Univ. in St. Louis, St. Louis, MO, USA
Abstract :
We have designed, fabricated, and tested a division-of-focal-plane polarimeter capable of simultaneously imaging both spectral and polarization information at 30 frames per second. The imaging sensor, composed of 1300 by 800 imaging elements, each containing three vertically stacked photodetectors, is covered by pixelated nanowire polarization filters at four different orientations offset by 45°. The polarimeter has a dynamic range of 62 dB and captures intensity, angle, and degree of linear polarization in three visible spectrum bands while consuming 700 mW of power.
Keywords :
focal planes; light polarisation; optical filters; photodetectors; division-of-focal-plane polarimeter; imaging elements; imaging sensor; linear polarization; pixelated nanowire polarization filters; polarization information; power 700 mW; spectral information; spectral polarization imager; vertically stacked photodetectors; visible spectrum bands; Image color analysis; Imaging; Information filters; Maximum likelihood detection; Nonlinear filters; Optical filters;
Conference_Titel :
Circuits and Systems (ISCAS), 2015 IEEE International Symposium on
Conference_Location :
Lisbon
DOI :
10.1109/ISCAS.2015.7168831