CaltechAUTHORS
Published January 9, 2009 | Version Published
Journal Article Open

Split-Ring-Resonator-Coupled Enhanced Transmission through a Single Subwavelength Aperture

Creators

  • 1. ROR icon Bilkent University
  • 2. ROR icon California Institute of Technology
  • 3. ROR icon Roma Tre University

Abstract

We report the enhanced transmission of electromagnetic waves through a single subwavelength aperture by using a split-ring resonator (SRR) at microwave frequencies. By placing a single SRR at the near field of the aperture, strongly localized electromagnetic fields are effectively coupled to the aperture with a radius that is 20 times smaller than the resonance wavelength (r/lambda=0.05). We obtained 740-fold transmission enhancement by exciting the electric resonance of SRR. A different coupling mechanism, through the magnetic resonance of SRR, is also verified to lead to enhanced transmission.

Additional Information

© 2009 The American Physical Society. Received 26 May 2008; revised 20 October 2008; published 7 January 2009. This work is supported by the European Union under the projects EU-METAMORPHOSE, EU-PHOREMOST, EU-PHOME, and EU-ECONAM as well as TUBITAK under the Projects No. 105E066, No. 105A005, No. 106E198, and No. 106A017. One of the authors (E.O.) also acknowledges partial support from the Turkish Academy of Sciences.

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Additional details

Identifiers

Eprint ID
12952
Resolver ID
CaltechAUTHORS:AYDprl09

Funding

Eurpoean Union
105E066
European Union
105A005
European Union
106E198
European Union
106A017
Turkish Academy of Sciences

Dates

Created
2009-01-10
Created from EPrint's datestamp field
Updated
2021-11-08
Created from EPrint's last_modified field