Liquid-crystal micropolarimeter array for visible linear and circular polarization imaging

Xiaojin Zhao, Amine Bermak, Farid Boussaid, Vladimir G. Chigrinov

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

3 Citations (Scopus)

Abstract

In this paper, we propose a liquid-crystal micropolarimeter (LCMP) array with high spatial resolution for real-time linear and circular polarization imaging in visible spectrum. LCMPs for extracting 0°, 90° linearly and right-handed circularly polarized components of incident light are implemented by micro-patterning a liquid crystal (LC) layer on top of a 45° oriented ultra-thin metal-wire-grid polarizer (MWGP). A compact LCMP pitch of 5μmx5μm is achieved with sulfonic-dye-1 (SD1) as the LC alignment material. In addition, these micron-scale LCMPs feature ∼ 5μm overall thickness and ∼1100 extinction ratio. Reported experimental results validate the concept of real-time linear and circular polarization image sensing and processing with targets illuminated by collimated artificial light.

Original languageEnglish
Title of host publicationISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems
Pages637-640
Number of pages4
DOIs
Publication statusPublished - 2010
Externally publishedYes
Event2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, ISCAS 2010 - Paris, France
Duration: 30 May 20102 Jun 2010

Other

Other2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, ISCAS 2010
CountryFrance
CityParis
Period30/5/102/6/10

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ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

Cite this

Zhao, X., Bermak, A., Boussaid, F., & Chigrinov, V. G. (2010). Liquid-crystal micropolarimeter array for visible linear and circular polarization imaging. In ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems (pp. 637-640). [5537510] https://doi.org/10.1109/ISCAS.2010.5537510