Plasmon resonant cavities in vertical nanowire arrays

Mihail Bora, Benjamin J. Fasenfest, Elaine M. Behymer, Allan S P Chang, Hoang T. Nguyen, Jerald A. Britten, Cindy C. Larson, James W Chan, Robin R. Miles, Tiziana C. Bond

Research output: Contribution to journalArticle

59 Scopus citations

Abstract

We investigate tunable plasmon resonant cavity arrays in paired parallel nanowire waveguides. Resonances are observed when the waveguide length is an odd multiple of quarter plasmon wavelengths, consistent with boundary conditions of node and antinode at the ends. Two nanowire waveguides satisfy the dispersion relation of a planar metal-dielectric-metal waveguide of equivalent width equal to the square field average weighted gap. Confinement factors over 10 3 are possible due to plasmon focusing in the interwire space.

Original languageEnglish (US)
Pages (from-to)2832-2837
Number of pages6
JournalNano Letters
Volume10
Issue number8
DOIs
StatePublished - Aug 11 2010
Externally publishedYes

Keywords

  • metal-dielectric-metal
  • nanowire
  • Plasmon
  • resonant cavity

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanical Engineering

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  • Cite this

    Bora, M., Fasenfest, B. J., Behymer, E. M., Chang, A. S. P., Nguyen, H. T., Britten, J. A., Larson, C. C., Chan, J. W., Miles, R. R., & Bond, T. C. (2010). Plasmon resonant cavities in vertical nanowire arrays. Nano Letters, 10(8), 2832-2837. https://doi.org/10.1021/nl1008376