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Advanced Materials

High-Contrast Photoswitching of Nonlinear Optical Response in Crosslinked Ferroelectric Liquid-Crystalline Polymers

Authors

  • Arri Priimagi,

    1. Chemical Resources Laboratory, Tokyo Institute of Technology, R1-12, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
    2. Department of Applied Physics, Aalto University, P.O. Box 13500, FI-00076 Aalto, Finland
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  • Keiji Ogawa,

    1. Chemical Resources Laboratory, Tokyo Institute of Technology, R1-12, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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  • Matti Virkki,

    1. Department of Physics, Tampere University of Technology, P.O. Box 692, FI-33101 Tampere, Finland
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  • Jun-ichi Mamiya,

    1. Chemical Resources Laboratory, Tokyo Institute of Technology, R1-12, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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  • Martti Kauranen,

    1. Department of Physics, Tampere University of Technology, P.O. Box 692, FI-33101 Tampere, Finland
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  • Atsushi Shishido

    Corresponding author
    1. Chemical Resources Laboratory, Tokyo Institute of Technology, R1-12, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
    • Chemical Resources Laboratory, Tokyo Institute of Technology, R1-12, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
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Abstract

A conceptually novel materials design, based on crosslinked ferroelectric liquid-crystalline polymers, is demonstrated for efficient switching of a second-order nonlinear optical (NLO) response in the solid state. By controlling the molecular alignment of the NLO moieties through two-photon isomerization of azobenzene molecules, reversible isothermal photocontrol of second-harmonic generation is achieved with contrast of up to 20.

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