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      Beaming of light and enhanced transmission via surface modes of photonic crystals

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      Author(s)
      Bulu, I.
      Caglayan, H.
      Özbay, Ekmel
      Date
      2005-11-15
      Source Title
      Optics Letters
      Print ISSN
      0146-9592
      Publisher
      Optical Society of America
      Volume
      30
      Issue
      22
      Pages
      3078 - 3080
      Language
      English
      Type
      Article
      Item Usage Stats
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      Abstract
      We report beaming and enhanced transmission of electromagnetic waves by use of surface corrugated photonic crystals. The modes of a finite-size photonic crystal composed of dielectric rods in free space have been analyzed by the plane-wave expansion method. We show the existence of surface propagating modes when the surface of the finite-size photonic crystal is corrugated. We theoretically and experimentally demonstrate that the transmission through photonic crystal waveguides can be substantially increased by the existence of surface propagating modes at the input surface. In addition, the power emitted from the photonic crystal waveguide is confined to a narrow angular region when an appropriate surface corrugation is added to the output surface of the photonic crystal.
      Keywords
      Aperture
      Physics
      Permalink
      http://hdl.handle.net/11693/11452
      Published Version (Please cite this version)
      http://dx.doi.org/10.1364/OL.30.003078
      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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