Journal Article

PUBDB-2016-03052

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Anisotropy Effects on the Plasmonic Response of Nanoparticle Dimers

Varas, A. (Corresponding author) ; García-González, P. ; García-Vidal, F. J. ; Rubio, A.CFEL*MPG*

2015
ACS Washington, DC

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Please use a persistent id in citations: doi:10.1021/acs.jpclett.5b00573

Abstract: We present an ab initio study of the anisotropy and atomic relaxation effects on the optical properties of nanoparticle dimers. Special emphasis is placed on the hybridization process of localized surface plasmons, plasmon-mediated photoinduced currents, and electric-field enhancement in the dimer junction. We show that there is a critical range of separations between the clusters (0.1–0.5 nm) in which the detailed atomic structure in the junction and the relative orientation of the nanoparticles have to be considered to obtain quantitative predictions for realistic nanoplasmonic devices. It is worth noting that this regime is characterized by the emergence of electron tunneling as a response to the driven electromagnetic field. The orientation of the particles not only modifies the attainable electric field enhancement but can lead to qualitative changes in the optical absorption spectrum of the system.

Note: (c) American Chemical Society

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Contributing Institute(s):

1. Forschungsgruppe für strukturelle Dynamik (MPSD)

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)
2. DYNAMO - Dynamical processes in open quantum systems: pushing the frontiers of theoretical spectroscopy (267374) (267374)

Experiment(s):

1. No specific instrument

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Database coverage:
; ; Current Contents - Physical, Chemical and Earth Sciences ; IF >= 5 ; JCR ; NCBI Molecular Biology Database ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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