Coupling between molecular and plasmonic resonances: Effect of molecular absorbance

Bala Krishna Juluri, Mengqian Lu, Yue Bing Zheng, Tony Jun Huang, Lasse Jensen

Research output: Contribution to journalArticle

49 Scopus citations

Abstract

In this work, we show using both experiments and classical electrodynamic simulations that plasmon splitting in resonant molecule-coated nanoparticles increases linearly as the square root of absorbance of the molecular layer. This linear relationship shows the same universal behavior established in analogous systems such as cavity-polariton and surface plasmon polariton systems. To explain this behavior, a simple physical mechanism based on linear dispersion and absorption is proposed. The insights obtained in this study can be used as a general principle for designing resonant molecule-coated nanoparticles for realizing tunable nanophotonic devices and molecular sensing.

Original languageEnglish (US)
Pages (from-to)18499-18503
Number of pages5
JournalJournal of Physical Chemistry C
Volume113
Issue number43
DOIs
StatePublished - Nov 20 2009

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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