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      Negative refraction and superlens behavior in a two-dimensional photonic crystal

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      Author(s)
      Moussa, R.
      Foteinopoulou, S.
      Zhang, L.
      Tuttle, G.
      Guven, K.
      Özbay, Ekmel
      Soukoulis, C. M.
      Date
      2005
      Source Title
      Physical Review B: Covering Condensed Matter and Materials Physics
      Print ISSN
      2469-9950
      Publisher
      American Physical Society
      Volume
      71
      Issue
      8
      Pages
      085106-1 - 085106-5
      Language
      English
      Type
      Article
      Item Usage Stats
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      261
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      Abstract
      We experimentally and theoretically studied a left-handed structure based on a photonic crystal (PC) with a negative refractive index. The structure consists of triangular array of rectangular dielectric bars with dielectric constant 9.61. Experimental and theoretical results demonstrate the negative refraction and the superlensing phenomena in the microwave regime. The results show high transmission for our structure for a wide range of incident angles. Furthermore, surface termination within a specific cut of the structure excite surface waves at the interface between air and PC and allow the reconstruction of evanescent waves for a better focus and better transmission. The normalized average field intensity calculated in both the source and image planes shows almost the same full width at half maximum for the source and the focused beam.
      Keywords
      Crystal
      Crystal structure
      Experiment
      Imaging system
      Lens
      Photon
      Refraction index
      Theory
      Permalink
      http://hdl.handle.net/11693/24121
      Published Version (Please cite this version)
      http://dx.doi.org/10.1103/PhysRevB.71.085106
      Collections
      • Department of Electrical and Electronics Engineering 4012
      • Department of Physics 2551
      • Institute of Materials Science and Nanotechnology (UNAM) 2260
      • Nanotechnology Research Center (NANOTAM) 1179
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