Enhanced transmission of electromagnetic waves through split-ring resonator-shaped apertures

Levent Sahin*, Koray Aydin, Ekmel Ozbay, Gonul T. Sayan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

The design of aperture shape is a promising approach for enhanced transmission through a subwavelength aperture. We designed split-ring-resonator (SRR)-shaped apertures in order to increase the transmission through subwavelength apertures by making use of the strong localization of the electromagnetic field in SRR-shaped apertures. We obtained a promising result of 104-fold enhancement by utilizing SRR-shaped apertures. It is possible to use these proposed structures at optical frequencies by making several modifications such as decreasing the sharpness of edges and increasing the gap width. Since SRRs are already being realized at optical frequencies, our proposed SRR-shaped aperture structures are promising candidates for novel applications.

Original languageEnglish (US)
Article number051812
JournalJournal of Nanophotonics
Volume5
Issue number1
DOIs
StatePublished - 2011

Keywords

  • apertures
  • metamaterials
  • nanophotonics
  • sub-diffraction limit
  • transmission and absorption
  • wave propagation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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