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      Experimental observation of subwavelength localization using metamaterial-based cavities

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      Author(s)
      Caglayan, H.
      Bulu, I.
      Loncar, M.
      Özbay, Ekmel
      Date
      2009-01-01
      Source Title
      Optics Letters
      Print ISSN
      0146-9592
      Electronic ISSN
      1539-4794
      Publisher
      Optical Society of America
      Volume
      34
      Issue
      1
      Pages
      88 - 90
      Language
      English
      Type
      Article
      Item Usage Stats
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      244
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      Abstract
      We report subwavelength localization of electromagnetic fields within cavities based on metamaterials. Cavity resonances are observed in the transmission spectrum of a split-ring resonator and composite metamaterials cavity structures. These cavity resonances are shown to exhibit high-quality factors. Since the unit cells of metamaterials are much smaller than the operation wavelength, subwavelength localization is possible within these metamaterial cavity structures. In the present Letter, we show that the electromagnetic field is localized into a region of λ/8, where λ is the cavity resonance wavelength. © 2008 Optical Society of America.
      Keywords
      350.4010
      160.3918
      Permalink
      http://hdl.handle.net/11693/11702
      Published Version (Please cite this version)
      https://doi.org/10.1364/OL.34.000088
      Collections
      • Department of Electrical and Electronics Engineering 4011
      • Department of Physics 2550
      • Institute of Materials Science and Nanotechnology (UNAM) 2258
      • Nanotechnology Research Center (NANOTAM) 1179
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