In situ characterization of one-dimensional plasmonic Ag nanocluster arrays

R. Verre, K. Fleischer, R. G. S. Sofin, N. McAlinden, J. F. McGilp, I. V. Shvets

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

One-dimensional Ag nanoparticle arrays have been grown on step-bunched vicinal Al2O3 in ultrahigh vacuum using deposition at a glancing angle. The structures grown showed a strong optical anisotropy in the visible region of the spectrum. The optical anisotropy was measured in situ using reflection anisotropy spectroscopy. Relevant optical properties were determined as a function of deposition angle and Ag thickness. A simple phenomenological model was developed to reproduce the features seen in the spectra. With this model it was possible to use the inhomogeneous broadening as a guide to the nanoparticle dispersion.

Original languageEnglish
Article number125432
Pages (from-to)-
Number of pages9
JournalPhysical Review B
Volume83
Issue number12
DOIs
Publication statusPublished - 30 Mar 2011

Keywords

  • nanoparticle chain arrays
  • optical reflectance
  • anisotropy spectroscopy
  • silver nanoparticles
  • diffraction limit
  • alpha-alumina
  • resonance

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