Correlated optical measurements and plasmon mapping of silver nanorods

Beth S. Guiton*, Vighter Iberi, Shuzhou Li, Donovan N. Leonard, Chad M. Parish, Paul G. Kotula, Maria Varela, George C. Schatz, Stephen J. Pennycook, Jon P. Camden

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

121 Scopus citations

Abstract

Plasmonics is a rapidly growing field, yet imaging of the plasmonic modes in complex nanoscale architectures is extremely challenging. Here we obtain spatial maps of the localized surface plasmon modes of high-aspect-ratio silver nanorods using electron energy loss spectroscopy (EELS) and correlate to optical data and classical electrodynamics calculations from the exact same particles. EELS mapping is thus demonstrated to be an invaluable technique for elucidating complex and overlapping plasmon modes.

Original languageEnglish (US)
Pages (from-to)3482-3488
Number of pages7
JournalNano letters
Volume11
Issue number8
DOIs
StatePublished - Aug 10 2011

Keywords

  • EELS
  • Plasmonics
  • Rayleigh scattering
  • STEM
  • discrete dipole approximation
  • multivariate statistical analysis

ASJC Scopus subject areas

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

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