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Plasmonics

, Volume 8, Issue 2, pp 755–761 | Cite as

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

  • Yuan-Fong Chau
  • Wei-Hsiang Lin
  • Min-Jer Sung
  • Ci-Yao Jheng
  • San-Cai Jheng
  • Din Ping Tsai
Article

Abstract

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).

Keywords

Plasmonic nanoantenna Finite element method Localized surface plasmon resonance 

Notes

Acknowledgements

Y.-F. Chau acknowledges the financial support from the National Science Council of the Republic of China (Taiwan) under Contracts NSC 99-2112-M-231-001-MY3, NSC 101-3113-P-002-021-, and NSC-100-2632-E-231-001-MY3.

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Copyright information

© Springer Science+Business Media New York 2012

Authors and Affiliations

  • Yuan-Fong Chau
    • 1
  • Wei-Hsiang Lin
    • 1
  • Min-Jer Sung
    • 1
  • Ci-Yao Jheng
    • 1
  • San-Cai Jheng
    • 1
  • Din Ping Tsai
    • 2
    • 3
  1. 1.Department of Electronic EngineeringChien Hsin University of Science and TechnologyZhongli City, Taoyuan CountyRepublic of China
  2. 2.Graduate Institute of Applied PhysicsNational Taiwan UniversityTaipeiTaiwan
  3. 3.Research Center for Applied SciencesAcademia SinicaTaipeiTaiwan

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