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Behavior of plasmonic nanoparticle array in near- and far-field coupling regimes for transverse electric and transverse magnetic polarizations

Shahmansouri, A ; Sharif University of Technology | 2013

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  1. Type of Document: Article
  2. DOI: 10.1364/JOSAB.30.002286
  3. Publisher: Optical Society of American (OSA) , 2013
  4. Abstract:
  5. We have previously reported the results of plasmonic behavior of an Au nanodisk array in the far-field coupling regime under oblique illumination with transverse electric polarization. In this paper, those results are studied in more detail. Here, results for transverse magnetic polarization are also presented and discussed. In addition to the far-field coupling regime, the results for the near-field coupling regime are also reported. Effects of different parameters, such as substrate thickness and array periodicity on the shape of plasmon spectra are discussed. It will be shown that in the far-field coupling regime, the diffractive grating orders can have a major role in the behavior of the structure
  6. Keywords:
  7. Plasmons ; Polarization ; Diffractive grating ; Near-field coupling ; Oblique illumination ; Plasmonic nanoparticle arrays ; Substrate thickness ; Transverse electric polarizations ; Transverse electrics ; Transverse magnetic polarization ; Nanomagnetics
  8. Source: Journal of the Optical Society of America B: Optical Physics ; Volume 30, Issue 8 , 2013 , Pages 2286-2291 ; 07403224 (ISSN)
  9. URL: https://www.osapublishing.org/josab/abstract.cfm?uri=josab-30-8-2286