Numerical Investagation of a Castle-like Contour Plasmonic Nanoantenna with Operating Wavelengths Ranging in Ultraviolet-Visible, Visible Light, and Infrared Light

Y.-F. Chau, W.-H. Lin, M.-J. Sung, C.-Y. Jheng, S.-C. Jheng, Din-ping Tsai

Research output: Journal article publicationJournal articleAcademic researchpeer-review

11 Citations (Scopus)


We propose a new design of a plasmonic nanoantenna and numerically study its optical properties by means of the 3D finite element method. The nanoantenna is composed of two identical castle-like contour nanometal-filled dielectric media inside the hollows. We examine the influence of the contour thickness, gap width, and dielectric media filled inside the hollows on the antenna resonance conditions. Through these simulations, we show that it is possible to tune an antenna with a constant length over a broad spectral range (ranging in ultraviolet-visible, visible light, and infrared light). © 2012 Springer Science+Business Media New York.
Original languageEnglish
Pages (from-to)755-761
Number of pages7
Issue number2
Publication statusPublished - 1 Jun 2013
Externally publishedYes


  • Finite element method
  • Localized surface plasmon resonance
  • Plasmonic nanoantenna

ASJC Scopus subject areas

  • Biotechnology
  • Biophysics
  • Biochemistry

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