Bleach-imaged plasmon propagation (BlIPP) in single gold nanowires

David Solis, Wei Shun Chang, Bishnu P. Khanal, Kui Bao, Peter Nordlander, Eugene R. Zubarev, Stephan Link

Research output: Contribution to journalArticlepeer-review

Abstract

Here, we present a novel approach to visualize propagating surface plasmon polaritons through plasmon-exciton interactions between single gold nanowires and a thin film of a fluorescent polymer. A plasmon polariton was launched by exciting one end of a single gold nanowire with a 532 nm laser. The local near-field of the propagating plasmon modes caused bleaching of the polymer emission. The degree of photobleaching along the nanowire could be correlated with the propagation distance of the surface plasmon polaritons. Using this method of bleach-imaged plasmon propagation (BlIPP), we determined a plasmon propagation distance of 1.8 ± 0.4 μm at 532 nm for chemically grown gold nanowires. Our results are supported by finite difference time domain electromagnetic simulations.

Original languageEnglish (US)
Pages (from-to)3482-3485
Number of pages4
JournalNano letters
Volume10
Issue number9
DOIs
StatePublished - Sep 8 2010
Externally publishedYes

Keywords

  • fluorescence bleaching
  • fluorescence enhancement
  • gold nanowire
  • Plasmon propagation
  • plasmon-exciton coupling
  • surface plasmon polariton

ASJC Scopus subject areas

  • Bioengineering
  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics
  • Mechanical Engineering

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