Journal
PLASMONICS
Volume 1, Issue 2-4, Pages 135-140Publisher
SPRINGER
DOI: 10.1007/s11468-006-9014-7
Keywords
electron beam lithography; FDTD; metallic nanoparticles; surface plasmons
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Localized Surface Plasmons (LSP) on metallic nanoparticles of different shapes are investigated by extinction spectroscopy. Experimental results are compared to simulations by a Finite-Difference Time-Domain (FDTD) method. Three different shapes of nanoparticles are compared, oblates, prolates and ellipsoids, in terms of spectral tunability of the LSP resonance (LSPR). It is found that the complete geometry of the nanoparticle must be given to truly define the LSP resonance and that ellipsoids offer the widest spectral tunability.
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