Plasmonics

, Volume 6, Issue 3, pp 469–476

Enhancement of Extraordinary Optical Transmission in a Double Heterostructure Plasmonic Bandgap Cavity

  • Roberto Marani
  • Valeria Marrocco
  • Marco Grande
  • Giuseppe Morea
  • Antonella D’Orazio
  • Vincenzo Petruzzelli
Article

DOI: 10.1007/s11468-011-9225-4

Cite this article as:
Marani, R., Marrocco, V., Grande, M. et al. Plasmonics (2011) 6: 469. doi:10.1007/s11468-011-9225-4

Abstract

In this paper, a novel plasmonic bandgap cavity inducing the enhancement of extraordinary optical transmission is presented. Numerical simulations have been performed to model a free-standing structure made of a one-dimensional periodic arrangement of gold strips. Two different values of the lattice constant have been properly chosen to realize a double heterostructure-like cavity to accomplish extraordinary optical transmission assisted by the formation of a plasmonic bandgap in the adjacent regions. Numerical results prove the capability of this optical device to efficiently transmit input light beams with far-field transmission values close to 100% due to the excitation of surface plasmon polariton resonant modes.

Keywords

Surface plasmon polaritonsExtraordinary optical transmissionPlasmonic bandgapSub-wavelength slits

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Roberto Marani
    • 1
  • Valeria Marrocco
    • 1
  • Marco Grande
    • 1
  • Giuseppe Morea
    • 1
  • Antonella D’Orazio
    • 1
  • Vincenzo Petruzzelli
    • 1
  1. 1.Dipartimento di Elettrotecnica ed ElettronicaPolitecnico di BariBariItaly