Journal
OPTICS COMMUNICATIONS
Volume 281, Issue 4, Pages 855-864Publisher
ELSEVIER
DOI: 10.1016/j.optcom.2007.10.019
Keywords
plasmonic resonance; collective resonance; metal nanoparticle; optical response
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We study the optical response of strongly coupled metal nanoparticle chains using rigorous multiple scattering calculations. The collective resonant frequency of silver nanosphere chains and the coupling between chains are considered. The coupling between silver nanoparticle chains are understood by the transmission and reflection calculations of 2D periodic arrays of nanospheres. The results are in agreement with recent experiments. The splitting of plasmon resonance modes for different polarizations of the incident light are explored. Our results show that the transverse mode resonant wavelength is very sensitive to the inter-chain distance. Results on the effect of disorder are also presented. (C) 2007 Elsevier B.V. All rights reserved.
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