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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 6 — Mar. 14, 2011
  • pp: 5565–5573

High-resolution thin “guest-host” micropolarizer arrays for visible imaging polarimetry

Xiaojin Zhao, Farid Boussaid, Amine Bermak, and Vladimir G. Chigrinov  »View Author Affiliations

Optics Express, Vol. 19, Issue 6, pp. 5565-5573 (2011)

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We report a micropolarizer array technology exploiting “guest-host” interactions in liquid crystals for visible imaging polarimetry. We demonstrate high resolution thin micropolarizer arrays with a 5 μm × 5 μm pixel pitch and a thickness of 0.95 μm. With the “host” nematic liquid crystal molecules photo-aligned by sulfonic azo-dye SD1, we report averaged major principal transmittance, polarization efficiency and order parameter of 80.3%, 0.863 and 0.848, respectively across the 400 nm – 700 nm visible spectrum range. The proposed fabrication technology completely removes the need for any selective etching during the fabrication/integration process of the micropolarizer array. Fully CMOS compatible, it is simple and cost-effective, requiring only spin-coating followed by a single ultraviolet-exposure through a “photoalignment master”. This makes it well suited to low cost polarization imaging applications.

© 2011 Optical Society of America

OCIS Codes
(120.5410) Instrumentation, measurement, and metrology : Polarimetry
(230.5440) Optical devices : Polarization-selective devices
(160.5335) Materials : Photosensitive materials
(110.5405) Imaging systems : Polarimetric imaging

ToC Category:
Imaging Systems

Original Manuscript: December 20, 2010
Revised Manuscript: February 16, 2011
Manuscript Accepted: February 28, 2011
Published: March 10, 2011

Xiaojin Zhao, Farid Boussaid, Amine Bermak, and Vladimir G. Chigrinov, "High-resolution thin “guest-host” micropolarizer arrays for visible imaging polarimetry," Opt. Express 19, 5565-5573 (2011)

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