Split ring resonator-coupled enhanced transmission through a single subwavelength aperture
arXiv:0805.3907 · doi:10.1103/PhysRevLett.102.013904
Abstract
We report the enhanced transmission of electromagnetic waves through a single subwavelength aperture by making use of the resonance behavior of 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 twenty times smaller than the resonance wavelength. 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 yield enhanced transmission. Good agreement is obtained between the microwave measurements and numerical simulations.
14 pages, 4 figures, to be submitted to PRL
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Cited by in corpus (6)
- Enhanced transmission of transverse electric waves through periodic arrays of structured subwavelength apertures
- Ultra-high field enhancing in Split Ring Resonators by azimuthally polarized excitation
- Anomalous light absorption around subwavelength apertures in metal films
- Enhanced transmission through subwavelength apertures by excitation of particle localized plasmons and nanojets
- Molecular Split-Ring Resonators Based on Metal String Complexes
- Broadband Extraordinary Transmission in a Single Sub-wavelength Aperture