Electron-Energy-Loss Spectra of Plasmonic Nanoparticles

Ulrich Hohenester, Harald Ditlbacher, and Joachim R. Krenn
Phys. Rev. Lett. 103, 106801 – Published 31 August 2009

Abstract

We investigate electron-energy-loss spectroscopy (EELS) on metallic nanoparticles, through simulations, and provide a comprehensive comparison between EELS and the photonic local density of states (LDOS). Most importantly, we show that there is no direct link between EELS and LDOS maps, and that EELS can even be blind to hot spots in the gap between coupled nanoparticles. Although intimately related, the two quantities provide complementary information. This finding is in marked contrast to recently reported results.

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  • Received 21 January 2009

DOI:https://doi.org/10.1103/PhysRevLett.103.106801

©2009 American Physical Society

Authors & Affiliations

Ulrich Hohenester*, Harald Ditlbacher, and Joachim R. Krenn

  • Institut für Physik, Karl-Franzens-Universität Graz, Universitätsplatz 5, 8010 Graz, Austria

  • *http://nanooptics.uni-graz.at

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Issue

Vol. 103, Iss. 10 — 4 September 2009

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