Liquid Crystals: Thermally Induced, Multicolored Hyper-Reflective Cholesteric Liquid Crystals (Adv. Mater. 12/2011)

Authors

  • Michael E. McConney,

    1. Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, OH, 45433, USA
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  • Vincent P. Tondiglia,

    1. Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, OH, 45433, USA
    2. Science Applications International Corporation, Dayton, OH, 45431, USA
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  • Jennifer M. Hurtubise,

    1. Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, OH, 45433, USA
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  • Lalgudi V. Natarajan,

    1. Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, OH, 45433, USA
    2. Science Applications International Corporation, Dayton, OH, 45431, USA
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  • Timothy J. White,

    1. Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, OH, 45433, USA
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  • Timothy J. Bunning

    Corresponding author
    1. Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, OH, 45433, USA
    • Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, OH, 45433, USA.
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Abstract

original image

While chiral nematic liquid crystals are promising for a variety of dynamic photonic applications, their contrast is usually limited to 50%. Timothy J. Bunning and co-workers present a system that dynamically induces contrast approaching 100% at multiple wavelengths using temperature on p. 1453. The inside cover is a rendered graphic of a surface bound helicoidal structured polymer network that templates the local liquid crystal molecules. The green background is a color enhanced polarized optical microscopy image of the liquid crystal texture in the non-templated region that is critical to thermal tuning behavior. Cover design by Michael E. McConney.

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