Various mechanisms for efficient optical transmission through bilayered subwavelength patterned metal films

Jian Wang, Yong Zeng, Xiaoshuang Chen, Wei Lu, Jerome V. Moloney

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

Light transmission through bilayered thin metal films perforated with subwavelength hole arrays are numerically studied based on a full-vector finite-difference time-domain approach. A variety of transmission peaks originating from different physical mechanisms are observed. In addition to the direct tunneling and Fabry-Pèrot resonances, generally possessed by idealized bilayered dielectric slabs, the near-field localized plasmon polaritons also play important roles. They not only influence the direct tunneling in a destructive or constructive way, but the interactions between these localized plasmon polaritons on both metal films also result in additional channels that transfer optical energy effectively.

Original languageEnglish (US)
Pages (from-to)B7-B10
JournalJournal of the Optical Society of America B: Optical Physics
Volume26
Issue number12
DOIs
StatePublished - Dec 1 2009

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics

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