Applied Physics B

, Volume 79, Issue 1, pp 1–8

Origin of the super-enhanced light transmission through a 2-D metallic annular aperture array: a study of photonic bands

Authors

    • Département d’Optique P.M. Duffieux, Institut FEMTO-ST UMR 6174 CNRSUniversité de Franche–Comté
  • D. Van Labeke
    • Département d’Optique P.M. Duffieux, Institut FEMTO-ST UMR 6174 CNRSUniversité de Franche–Comté
  • G. Granet
    • Lasmea, CNRS UMR 6602Université Blaise-Pascal
  • A. Moreau
    • Lasmea, CNRS UMR 6602Université Blaise-Pascal
  • A. Belkhir
    • Laboratoire de Physique et Chimie QuantiqueUniversité Mouloud Mammeri
Article

DOI: 10.1007/s00340-004-1497-3

Cite this article as:
Baida, F., Van Labeke, D., Granet, G. et al. Appl. Phys. B (2004) 79: 1. doi:10.1007/s00340-004-1497-3

Abstract

Recently a new structure showing a super-enhanced transmission [Optics Commun. 209, 17–22 (2002); Phys. Rev. B, 67, 155314, (2003)] has been proposed. The origin of this phenomenon was not clearly explained. In this paper, by using a numerical Order-N FDTD spectral method, we study the eigenmodes, the band structure and the dispersion curves of a photonic 2-D crystal made with coaxial circular cavities and made from a real metal. We show that the super-enhanced transmission of the finite structure is due to a cavity resonance of a single guided mode. An extensive characterization of this mode is presented, in terms of the spatial mode structure and effective index dispersion curve.

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Copyright information

© Springer-Verlag 2004