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Effect of a proximal substrate on plasmon propagation in silver nanowires

机译:近端基底对银纳米线中等离子体激元传播的影响

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摘要

We investigate how the properties of a nearby substrate modify the excitation and propagation of plasmons in subwavelength silver wires. With decreasing nanowire-substrate separation, the in-coupling efficiency shows strongly oscillatory behavior due to coherent interference. The plasmon damping increases with decreasing separation due to an increased coupling of the nanowire plasmons to the photonic modes of the substrate.
机译:我们研究了附近基板的特性如何修改亚波长银线中等离子体激元的激发和传播。随着纳米线-基板间距的减小,由于相干干扰,耦合效率显示出强烈的振荡行为。由于纳米线等离激元与衬底的光子模式的耦合增加,等离激元阻尼随着分离的减小而增加。

著录项

  • 来源
    《Physical review》 |2010年第24期|p.241402.1-241402.4|共4页
  • 作者单位

    Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603-146,100190 Beijing, China;

    Department of Physics and Astronomy, Laboratory for Nanophotonics, Rice University, Houston, Texas 77005, USA,Department of Electrical and Computer Engineering, Laboratory for Nanophotonics, Rice University, Houston, Texas 77005, USA;

    Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603-146,100190 Beijing, China;

    Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603-146,100190 Beijing, China;

    Department of Physics and Astronomy, Laboratory for Nanophotonics, Rice University, Houston, Texas 77005, USA,Department of Electrical and Computer Engineering, Laboratory for Nanophotonics, Rice University, Houston, Texas 77005, USA ,Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603-146,100190 Beijing, China;

    Department of Physics and Astronomy, Laboratory for Nanophotonics, Rice University, Houston, Texas 77005, USA,Department of Electrical and Computer Engineering, Laboratory for Nanophotonics, Rice University, Houston, Texas 77005, USA ,Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603-146,100190 Beijing, China;

    Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603-146,100190 Beijing, China,Division of Solid State Physics/The Nanometer Consortium, Lund University, P.O. Box 118, S-22100 Lund, Sweden;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    collective excitations (including excitons, polarons, plasmons and other charge-density excitations); waveguides, couplers, and arrays;

    机译:集体激发(包括激子;极化子;等离激元和其他电荷密度激发);波导;耦合器和阵列;

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