Published January 9, 2009
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Journal Article
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Split-Ring-Resonator-Coupled Enhanced Transmission through a Single Subwavelength Aperture
Chicago
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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.Attached Files
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Additional details
- Eprint ID
- 12952
- Resolver ID
- CaltechAUTHORS:AYDprl09
- Eurpoean Union
- 105E066
- European Union
- 105A005
- European Union
- 106E198
- European Union
- 106A017
- Turkish Academy of Sciences
- Created
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2009-01-10Created from EPrint's datestamp field
- Updated
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2021-11-08Created from EPrint's last_modified field