Extending the Propagation Distance of a Silver Nanowire Plasmonic Waveguide with a Dielectric Multilayer Substrate.

  title={Extending the Propagation Distance of a Silver Nanowire Plasmonic Waveguide with a Dielectric Multilayer Substrate.},
  author={Douguo Zhang and Yifeng Xiang and Junxue Chen and Junjie Cheng and Liangfu Zhu and Ruxue Wang and Gang Zou and Pei Wang and Hai Ming and Mary Y. Rosenfeld and Ramachandram Badugu and Joseph R Lakowicz},
  journal={Nano letters},
  volume={18 2},
Chemical-synthesized silver nanowires have been proven as an efficient architecture for plasmonic waveguides, but the high propagation loss prevents their widely applications. Here, we demonstrate that the propagation distance of the plasmons along a silver nanowire can be extended if this nanowire was placed on a dielectric multilayer substrate containing a photonic band gap but not placed on a commonly used glass substrate. The propagation distance at 630 nm wavelength can reach 16 μm, even… 

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