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A High-Resolution Micro-circular-polarization-analyzer Array for Real-Time Active Circular Polarization Imaging

Authors Zhao, Xiaojin HKUST affiliated (currently or previously)
Bermak, Amine View this author's profile
Boussaid, Farid
Yao, Lishuang HKUST affiliated (currently or previously)
Chigrinov, Vladimir G. View this author's profile
Issue Date 2009
Summary In this paper, a high-resolution micro-circular-polarization-analyzer (MCPA) array is presented and characterized. MCPAs for extracting right-handed and left-handed circularly polarized components of incident light are implemented by fabricating polymerizable-liquid-crystal (PLC) micro-retarders with perpendicular fast axes on top of a 45 degrees laminated linear polarizing film. With sulfonic-dye-1 (SDI) as the PLC photoalignment material, an MCPA feature size as small as 5 mu m is achieved. In addition, the concept of real-time active circular polarization image sensing and processing with targets illuminated by collimated circularly polarized light is enabled by the MCPA array's on-chip integration with complementary metal-oxide-semiconductor (CMOS) image sensors.
ISBN 978-1-4244-4917-0
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Language English
Format Conference paper
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