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      Slowing surface plasmon polaritons on plasmonic coupled cavities by tuning grating grooves

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      Author
      Balcı, Sinan
      Kocabaş, Aşkın
      Kocabaş, Coşkun
      Aydınlı, Atilla
      Date
      2010-09
      Source Title
      Applied Physics Letters
      Print ISSN
      0003-6951
      Publisher
      American Institute of Physics
      Volume
      97
      Issue
      13
      Pages
      1 - 3
      Language
      English
      Type
      Article
      Item Usage Stats
      148
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      117
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      Abstract
      We investigate slow surface plasmon polaritons (SPPs) in plasmonic waveguiding bands formed by coupled plasmonic cavities on Moiŕ surfaces. We demonstrate controlling the group velocity and dispersion of the SPPs by varying the depth of the plasmonic Bragg grating groove. Changing the grating depth results in modification of coupling coefficients between the cavities and hence the SPPs group velocity is altered. Variation in the group velocity and dispersion of SPPs can be measured with polarization dependent spectroscopic reflection measurements. Dispersion of SPPs has been calculated by finite-difference time-domain method in agreement with the experimental data.
      Keywords
      Coupled cavity
      Coupling coefficient
      Experimental data
      Grating depths
      Group velocities
      Plasmonic
      Reflection measurements
      Surface plasmon polaritons
      Wave-guiding
      Finite difference time domain method
      Light velocity
      Phonons
      Photons
      Quantum theory
      Solids
      Surface plasmon resonance
      Plasmons
      Permalink
      http://hdl.handle.net/11693/22209
      Published Version (Please cite this version)
      http://dx.doi.org/10.1063/1.3495781
      Collections
      • Advanced Research Laboratories (ARL) 34
      • Department of Physics 2299
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