Departmental Papers (ESE)


A novel focal plane imaging sensor capable of real time extraction of polarization information is presented. The imaging system consists of a photo array of 256 by 256 linear current mode active pixel sensors (APS). Analog processing circuitry is included at the focal plane for noise suppression and computation of the Stokes parameters. The imaging sensor was fabricated in 0.18μm process with 10μm pixel pitch and 75% fill factor. An array of micro polarizer is designed and fabricated separately and will be mounted on top of the imaging array. Simulation results of the imaging sensor are presented.

Document Type

Conference Paper

Date of this Version

May 2006


Copyright 2007 IEEE. Reprinted from Proceedings of the IEEE International Symposium on Circuits and Systems (ISCAS), May 2006, pages 213-216.
Publisher URL:

This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Pennsylvania's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to By choosing to view this document, you agree to all provisions of the copyright laws protecting it.


CMOS imager, Image sensor, current-mode, polarization extraction, Stokes parameters



Date Posted: 26 June 2007

This document has been peer reviewed.