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      Coupled plasmonic cavities on moire surfaces

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      Author
      Balcı, Sinan
      Karabıyık, Mustafa
      Kocabaş, Aşkın
      Kocabaş, Coşkun
      Aydınlı, Atilla
      Date
      2010-08
      Source Title
      Plasmonics
      Print ISSN
      1557-1955
      Electronic ISSN
      1557-1963
      Publisher
      Springer
      Volume
      5
      Issue
      4
      Pages
      429 - 436
      Language
      English
      Type
      Article
      Item Usage Stats
      146
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      Abstract
      Surface plasmon polariton (SPP) waveguides formed by coupled plasmonic cavities on metallic Moire surfaces have been investigated both experimentally and numerically. The Moire surface, fabricated by interference lithography, contains periodic arrays of one-dimensional cavities. The coupling strength between the cavities has been controlled by changing the periodicities of the Moire surface. The ability to control the coupling strength allows us to tune the dispersion and the group velocity of the plasmonic coupled cavity mode. Reflection measurements and numerical simulation of the array of SPP cavities have shown a coupled resonator type plasmonic waveguide band formation within the band gap. Coupling coefficients of cavities and group velocities of SPPs are calculated for a range of cavity sizes from weakly coupled regime to strongly coupled regime.
      Keywords
      Coupled cavity
      Grating
      Plasmon
      Plasmonic cavity
      Surface plasmon polariton (SPP)
      Permalink
      http://hdl.handle.net/11693/22079
      Published Version (Please cite this version)
      http://dx.doi.org/10.1007/s11468-010-9161-8
      Collections
      • Advanced Research Laboratories (ARL) 34
      • Department of Physics 2299
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