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Coherent Modulation of Propagating Plasmons in Silver-Nanowire-Based Structures

Authors

  • Zhipeng Li,

    1. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Box 603–146, 100190, Beijing, China
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  • Shunping Zhang,

    1. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Box 603–146, 100190, Beijing, China
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  • Naomi J. Halas,

    1. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Box 603–146, 100190, Beijing, China
    2. Department of Physics and Astronomy, Department of Electrical and Computer Engineering, Laboratory for Nanophotonics, Rice University, Houston, TX 77005, USA
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  • Peter Nordlander,

    Corresponding author
    1. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Box 603–146, 100190, Beijing, China
    2. Department of Physics and Astronomy, Department of Electrical and Computer Engineering, Laboratory for Nanophotonics, Rice University, Houston, TX 77005, USA
    • Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Box 603–146, 100190, Beijing, China.
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  • Hongxing Xu

    Corresponding author
    1. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Box 603–146, 100190, Beijing, China
    2. Division of Solid State Physics/The Nanometer Consortium, Lund University, Box 118, S-22100, Lund, Sweden
    • Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Box 603–146, 100190, Beijing, China.
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Abstract

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A branched nanowire with two input terminals and one output terminal can serve as a modulator. The light emission from the output resulting from illumination of one input can be modulated by illumination at the other input. The physical mechanism underlying the modulation is constructive or destructive interference of the nanowire plasmons supported by the structure. This finding is of importance for the development of integrated plasmonic devices for information and communication technologies.

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