Metal Nanoparticle Gratings: Influence of Dipolar Particle Interaction on the Plasmon Resonance

B. Lamprecht; G. Schider; R. T. Lechner; H. Ditlbacher; J. R. Krenn; A. Leitner; F. R. Aussenegg

doi:10.1103/PhysRevLett.84.4721

Metal Nanoparticle Gratings: Influence of Dipolar Particle Interaction on the Plasmon Resonance

B. Lamprecht, G. Schider, R. T. Lechner, H. Ditlbacher, J. R. Krenn, A. Leitner, and F. R. Aussenegg

Phys. Rev. Lett. 84, 4721 – Published 15 May 2000

Abstract

We probe the influence of grating effects on plasmon excitations in gold nanoparticles arranged in regular two-dimensional patterns. Samples produced by electron-beam lithography are investigated by femtosecond time-resolved and spectroscopic methods. We find a strong dependence of the plasmon lifetime and resonance wavelength on the grating constant.

Received 23 December 1999

DOI:https://doi.org/10.1103/PhysRevLett.84.4721

Authors & Affiliations

B. Lamprecht, G. Schider, R. T. Lechner, H. Ditlbacher, J. R. Krenn, 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