Optical crosstalk in division of focal plane imagers

A. Deliwala, V. Gruev

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Recent technology advancements in imaging technology has led to the commercialization of the first color-polarization imaging sensor. This technological feat is enabling development of new imaging applications and algorithms, which were not possible without this technology. However, when we compare several attributes between state-of-the-art color and polarization imaging technology, several shortcomings are evident in the polarization technology. First, the pixel pitch of today's color technology is around 0.8 microns. The most advanced polarization imager utilized 3.5-micron pixel pitch - color imaging technology achieved this pixel pitch more than 10 years ago. However, today's color imaging technology is plagued with optical and electrical cross talk. Although signal processing algorithms mitigate some of these effects, color technology is less stringent on the efficacy of these algorithms. Polarization imaging technology is fundamentally different from color and is more dependent on crosstalk. In this paper, we present theoretical data on how cross talk affects polarization accuracy.

Original languageEnglish (US)
Title of host publicationPolarization
Subtitle of host publicationMeasurement, Analysis, and Remote Sensing XIV
EditorsDavid B. Chenault, Dennis H. Goldstein
ISBN (Electronic)9781510636019
StatePublished - 2020
EventPolarization: Measurement, Analysis, and Remote Sensing XIV 2020 - None, United States
Duration: Apr 27 2020May 8 2020

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferencePolarization: Measurement, Analysis, and Remote Sensing XIV 2020
Country/TerritoryUnited States


  • Optical cross talk
  • Polarization imaging
  • Polarization signal processing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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