Glass-Forming Cholesteric Liquid Crystal Oligomers for New Tunable Solid-State Laser

Authors

  • Seiichi Furumi,

    Corresponding author
    1. National Institute for Materials Science (NIMS) 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047 (Japan)
    • National Institute for Materials Science (NIMS) 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047 (Japan).
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  • Nobuyuki Tamaoki

    Corresponding author
    1. National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba Central 5, 1-1-1 Higashi, Tsukuba 305-8565 (Japan)
    2. Present address: Research Institute for Electronic Science (RIES), Hokkaido University, N20, W10, Kita-ku, Sapporo 001-0020 (Japan)
    • National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba Central 5, 1-1-1 Higashi, Tsukuba 305-8565 (Japan).
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Abstract

original image

A new potential utility of glass-forming cholesteric liquid crystal (G-CLC) oligomers for application in tunable solid-state laser is presented. The G-CLC is capable of tuning the photonic band gaps (PBGs) by way of the annealing temperature and preserving the tuned PBGs by a subsequent supercooling treatment. This G-CLC film enables the facile fabrication of a continuously gradated PGB structure and, thus, the continuous tuning of a single laser-emission peak (see figure).

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