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Proceedings Paper

Theory of energy transfer interactions near sphere and nanoshell based plasmonic nanostructures
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Paper Abstract

Theory of energy transfer interactions between a pair of two level molecules in the molecular nanojunction including surface plasmon (SP) dressed interaction of plasmonic nanostructure, replicating metallic leads is presented. Results on the modification of bare dipolar interaction, known to be responsible for molecular energy transfer processes, in the proximity of metallic nanosystem are presented. Specifically, the manuscript includes theoretical investigation of nanosphere (NSP) monomer, nanoshell (NSH) monomer, and coupled nanosphere pair (dimer) based nanosystems. Closed form analytical expressions for NSP and NSH structures tailored for molecular nanojunction geometry are derived in the theoretical framework of multipole spectral expansion (MSE) method, which is straightforwardly extendible to dimers and multimers. The role of size and dielectric environment on energy transfer is investigated and interpreted. Theory predicts that the monomer and dimer both enhance the dipolar interaction, yet, dimer geometry is favorable due to its spectral tuning potential originated from plasmon hybridization and true resemblance with typical molecular nanojunctions.

Paper Details

Date Published: 20 September 2011
PDF: 16 pages
Proc. SPIE 8096, Plasmonics: Metallic Nanostructures and Their Optical Properties IX, 80961G (20 September 2011); doi: 10.1117/12.892940
Show Author Affiliations
Manmohan S. Shishodia, Tel Aviv Univ. (Israel)
Holon Institute of Technology (Israel)
Boris D. Fainberg, Tel Aviv Univ. (Israel)
Holon Institute of Technology (Israel)
Abraham Nitzan, Tel Aviv Univ. (Israel)

Published in SPIE Proceedings Vol. 8096:
Plasmonics: Metallic Nanostructures and Their Optical Properties IX
Mark I. Stockman, Editor(s)

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