Hybrid photonic-plasmonic crystal nanocavities

Xiaodong Yang, Atsushi Ishikawa, Xiaobo Yin, Xiang Zhang

Research output: Contribution to journalArticle

83 Citations (Scopus)

Abstract

We propose a hybrid optical nanocavity consisting of photonic crystals coupled to a metal surface with a nanoscale air gap between. The hybridization of photonic crystal modes and surface plasmons across the gap forms hybrid cavity modes, which are highly confined in the low-loss air gap region. Deep subwavelength mode volume and high quality factor are demonstrated at telecommunication wavelength, resulting in an extremely large Q/Vm ratio of 60 000 λ-3. This new type of high-Q/Vm broad-band hybrid nanocavity opens up opportunities for various applications in enhanced light-matter interactions.

Original languageEnglish
Pages (from-to)2831-2838
Number of pages8
JournalACS Nano
Volume5
Issue number4
DOIs
Publication statusPublished - Apr 26 2011

Keywords

  • hybrid plasmonic mode
  • optical nanocavity
  • photonic crystal
  • surface plasmon polariton

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

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  • Cite this

    Yang, X., Ishikawa, A., Yin, X., & Zhang, X. (2011). Hybrid photonic-plasmonic crystal nanocavities. ACS Nano, 5(4), 2831-2838. https://doi.org/10.1021/nn1033482