Near-field optical properties and surface plasmon effects generated by a dielectric hole in a silver-shell nanocylinder pair

Y.-F. Chau, H.-H. Yeh, Din-ping Tsai

Research output: Journal article publicationJournal articleAcademic researchpeer-review

60 Citations (Scopus)

Abstract

Near-field optical properties and surface plasmon effects in a silver-shell nanocylinder pair with five different dielectric holes (DHs) that interact with a transverse magnetic mode incident plane wave are simulated by use of the finite-element method, which includes the investigation of particle-particle interaction. The proposed structure exhibits a redshifted localized surface plasmon that can be tuned over an extended wavelength range by varying the dielectric constant in DHs and the thickness of the nanocylinder silver shell. The increase in the near-field intensity is attributed to a larger effective size of DH that is filled with a higher refractive medium. © 2008 Optical Society of America.
Original languageEnglish
Pages (from-to)5557-5561
Number of pages5
JournalApplied Optics
Volume47
Issue number30
DOIs
Publication statusPublished - 20 Oct 2008
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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