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      • Department of Electrical and Electronics Engineering
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      Transmission enhancement through deep subwavelength apertures using connected split ring resonators

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      Author(s)
      Ates, D.
      Cakmak, A.O.
      Colak, E.
      Zhao, R.
      Soukoulis, C.M.
      Özbay, Ekmel
      Date
      2010
      Source Title
      Optics Express
      Print ISSN
      10944087
      Publisher
      Optical Society of American (OSA)
      Volume
      18
      Issue
      4
      Pages
      3952 - 3966
      Language
      English
      Type
      Article
      Item Usage Stats
      162
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      128
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      Abstract
      We report astonishingly high transmission enhancement factors through a subwavelength aperture at microwave frequencies by placing connected split ring resonators in the vicinity of the aperture. We carried out numerical simulations that are consistent with our experimental conclusions. We experimentally show higher than 70,000-fold extraordinary transmission through a deep subwavelength aperture with an electrical size of λ/31xλ/12 (width x length), in terms of the operational wavelength. We discuss the physical origins of the phenomenon. Our numerical results predict that even more improvements of the enhancement factors are attainable. Theoretically, the approach opens up the possibility for achieving very large enhancement factors by overcoming the physical limitations and thereby minimizes the dependence on the aperture geometries. © 2010 Optical Society of America.
      Keywords
      Computer simulation
      Numerical analysis
      Optical resonators
      Enhancement factor
      Extraordinary transmission
      High transmission
      Numerical results
      Numerical simulation
      Physical limitations
      Split ring resonator
      Subwavelength apertures
      Transmission enhancement
      Wave transmission
      article
      equipment
      equipment design
      instrumentation
      light
      microwave radiation
      optical instrumentation
      radiation scattering
      refractometry
      transducer
      Equipment Design
      Equipment Failure Analysis
      Light
      Microwaves
      Optical Devices
      Refractometry
      Scattering, Radiation
      Transducers
      Permalink
      http://hdl.handle.net/11693/22431
      Published Version (Please cite this version)
      http://dx.doi.org/10.1364/OE.18.003952
      Collections
      • Department of Electrical and Electronics Engineering 3702
      • Department of Physics 2397
      • Nanotechnology Research Center (NANOTAM) 1063
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