Fano-induced spontaneous emission enhancement of molecule placed in a cluster of asymmetrically-arranged metallic nanoparticles

Khai Q. Le, Jing Bai, H. P.T. Nguyen

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

We demonstrate that plasmonic Fano resonance significantly boosts spontaneous emission rate of a single emitter, e.g. atom, molecule and quantum dot, over a moderately broad emission spectrum. An emission enhancement of up to 140 times compared to the system with no external inclusion at tunable frequencies is achieved, providing a new complementary enhancement mechanism. Fano resonance is induced in clusters of four asymmetric-arranged nanoparticles with ultra-small inter-particle gaps. It is shown to play a dominant role in light-emitting enhancement, mediated by combined localized surface plasmon resonances.

Original languageEnglish (US)
Pages (from-to)199-202
Number of pages4
JournalJournal of Luminescence
Volume173
DOIs
StatePublished - May 1 2016

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Biochemistry
  • Chemistry(all)
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

Keywords

  • Fano resonance
  • Plasmon enhanced spontaneous emission
  • Plasmonic Metamolecules

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