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

Manmohan S. Shishodia, Boris D. Fainberg, Abraham Nitzan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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.

Original languageEnglish
Title of host publicationPlasmonics
Subtitle of host publicationMetallic Nanostructures and Their Optical Properties IX
DOIs
StatePublished - 2011
EventPlasmonics: Metallic Nanostructures and Their Optical Properties IX - San Diego, CA, United States
Duration: 21 Aug 201125 Aug 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8096
ISSN (Print)0277-786X

Conference

ConferencePlasmonics: Metallic Nanostructures and Their Optical Properties IX
Country/TerritoryUnited States
CitySan Diego, CA
Period21/08/1125/08/11

Keywords

  • Dipole
  • Energy transfer
  • Exciton
  • Molecular nanojunction
  • Nanoparticle dimer
  • Nanoshell
  • Plasmonic nanostructure
  • Surface plasmon

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