In-situ characterisation of one-dimensional plasmonic Ag nanocluster arrays
MC GILP, JOHN FINLAY
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Citation:R. Verre, K. Fleischer, R. G. S. Sofin, N. McAlinden, J. F. McGilp, I. V. Shvets, In-situ characterisation of one-dimensional plasmonic Ag nanocluster arrays, Physical Review B, 83, 2011, 125432-
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.
Science Foundation Ireland
Series/Report no:Physical Review B