Plasmon dispersion relation of Au and Ag nanowires

G. Schider; J. R. Krenn; A. Hohenau; H. Ditlbacher; A. Leitner; F. R. Aussenegg; W. L. Schaich; I. Puscasu; B. Monacelli; G. Boreman

doi:10.1103/PhysRevB.68.155427

Plasmon dispersion relation of Au and Ag nanowires

G. Schider, J. R. Krenn, A. Hohenau, H. Ditlbacher, A. Leitner, F. R. Aussenegg, W. L. Schaich, I. Puscasu, B. Monacelli, and G. Boreman

Phys. Rev. B 68, 155427 – Published 28 October 2003

Abstract

We have studied surface plasmon modes on silver and gold nanowires of a fixed cross section and different lengths, produced by electron beam lithography. The optically excited modes are determined by extinction spectroscopy and can be interpreted in terms of standing plasmon polariton waves. The eigenfrequencies are found to follow a dispersion relation similar to that for a planar metal/dielectric interface.

Received 15 April 2003

DOI:https://doi.org/10.1103/PhysRevB.68.155427

Authors & Affiliations

G. Schider, J. R. Krenn, A. Hohenau, H. Ditlbacher, A. Leitner, and F. R. Aussenegg

Institute for Experimental Physics, Karl-Franzens-University Graz and Erwin Schrödinger Institute for Nanoscale Research, Universitätsplatz 5, A-8010 Graz, Austria

W. L. Schaich

Department of Physics, Indiana University, Bloomington, Indiana 47405, USA

I. Puscasu^*, B. Monacelli, and G. Boreman

School of Optics/CREOL, University of Central Florida, 4000 Central Florida Blvd., Orlando, Florida 32816, USA

^*Present address: Ion-Optics, 411 Waverly Oaks Rd., Suite 144, Waltham, MA 02452, USA.

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Vol. 68, Iss. 15 — 15 October 2003

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