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Phys Rev Lett. 2000 May 15;84(20):4721-4.

Metal nanoparticle gratings: influence of dipolar particle interaction on the plasmon resonance

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Institute for Experimental Physics, Karl-Franzens-University Graz and Erwin Schrodinger Institute for Nanoscale Research, Universitatsplatz 5, A-8010 Graz, Austria.


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.

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