Quantum coherent plasmon in silver nanowires: a real-time TDDFT study

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dc.contributor.author Ding, Feizhi
dc.contributor.author Guidez, Emilie B.
dc.contributor.author Aikens, Christine M.
dc.contributor.author Li, Xiaosong
dc.date.accessioned 2014-11-04T20:08:29Z
dc.date.available 2014-11-04T20:08:29Z
dc.date.issued 2014-11-04
dc.identifier.uri http://hdl.handle.net/2097/18635
dc.description.abstract A plasmon-like phenomenon, arising from coinciding resonant excitations of different electronic characteristics in 1D silver nanowires, has been proposed based on theoretical linear absorption spectra. Such a molecular plasmon holds the potential for anisotropic nanoplasmonic applications. However, its dynamical nature remains unexplored. In this work, quantum dynamics of longitudinal and transverse excitations in 1D silver nanowires are carried out within the real-time time-dependent density functional theory framework. The anisotropic electron dynamics confirm that the transverse transitions of different electronic characteristics are collective in nature and oscillate in-phase with respect to each other. Analysis of the time evolutions of participating one-electron wave functions suggests that the transverse transitions form a coherent wave packet that gives rise to a strong plasmon resonance at the molecular level. en_US
dc.language.iso en_US en_US
dc.relation.uri http://scitation.aip.org/content/aip/journal/jcp/140/24/10.1063/1.4884388 en_US
dc.rights Copyright 2014 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. en_US
dc.subject Silver nanowires en_US
dc.subject Plasmon en_US
dc.subject Surface plasmon resonance en_US
dc.subject Anisotropic electron dynamics en_US
dc.title Quantum coherent plasmon in silver nanowires: a real-time TDDFT study en_US
dc.type Article (publisher version) en_US
dc.date.published 2014 en_US
dc.citation.doi doi:10.1063/1.4884388 en_US
dc.citation.epage 244705-7 en_US
dc.citation.issue 24 en_US
dc.citation.jtitle Journal of Chemical Physics en_US
dc.citation.spage 244705-1 en_US
dc.citation.volume 140 en_US
dc.contributor.authoreid cmaikens en_US

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