Metamaterials for electromagnetic waves composed of microplasmas

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  • SAKAI Osamu
    Department of Electronic Science and Engineering, Kyoto University
  • TACHIBANA Kunihide
    Department of Electronic Science and Engineering, Kyoto University

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Other Title
  • マイクロプラズマによる電磁波メタマテリアル
  • マイクロプラズマ ニ ヨル デンジハ メタマテリアル

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Abstract

<p>An array of microplasmas, which are small and with complicated shapes, acts as a functional metamaterial through a spatiotemporal configuration whose design is based on the dispersion relation of propagating electromagnetic waves. In such a functional metamaterial, microplasmas behave as a dynamic medium with a negative permittivity and are controlled by the external power used for plasma generation; their parameters are adjustable, and they can be switched on and off. Specific examples discussed in this report include dynamic band-gap materials and a medium with a negative refractive index.</p>

Journal

  • Oyo Buturi

    Oyo Buturi 78 (5), 437-441, 2009-05-10

    The Japan Society of Applied Physics

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