Shape-Tunable Wrinkles for a Switchable Optical Diffuser

DOI Web Site 51 References
  • OHZONO Takuya
    Nanosystem Research Institute (NRI), National Institute of Advanced Industrial Science and Technology (AIST)
  • SUZUKI Kosuke
    Nanosystem Research Institute (NRI), National Institute of Advanced Industrial Science and Technology (AIST)
  • YAMAGUCHI Tomohiko
    Nanosystem Research Institute (NRI), National Institute of Advanced Industrial Science and Technology (AIST)
  • FUKUDA Nobuko
    Flexible Electronics Research Center (FLEC), National Institute of Advanced Industrial Science and Technology (AIST)

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Other Title
  • 可変リンクルによる光透過–拡散のスイッチング
  • カヘン リンクル ニ ヨル ヒカリ トウカ-カクサン ノ スイッチング

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Abstract

Recently, spontaneously formed microwrinkles on hard coating-capped elastomer surfaces have attracted the attention of both the scientific and applied research communities, because of their simple fabrication process and potential for diverse practical applications. The depth and averaged orientation of the microwrinkle grooves can be controlled by applying strain. Here, we study the diffusion of light passed through a surface with wrinkles in the range of hundreds of microns. Without strain, the sample shows no wrinkles and is a transparent plate. With strain, the surface shows wrinkles and diffuses the light beam depending on the magnitude of applied strain. Thus, the present system can be used as a switchable optical diffuser.

Journal

  • KOBUNSHI RONBUNSHU

    KOBUNSHI RONBUNSHU 70 (5), 179-184, 2013

    The Society of Polymer Science, Japan

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