Electromagnetic field enhancement for wedge-shaped metal nanostructures

Ali M. Angulo, Cecilia Noguez, George C. Schatz

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

The role of localized surface plasmon resonances near the surface of a silver or gold wedge is discussed based on quasistatic theory. Strongly enhanced electromagnetic field intensities at moderate distances of 1 nm from the wedge are found by manipulating morphology and dielectric environment. The theory also shows that wedge structures can have high enhancements over a broad range of wavelengths, which is of relevance to surface-enhanced Raman scattering and tip-enhanced Raman scattering measurements and for improving plasmon enhanced photovoltaic devices.

Original languageEnglish
Pages (from-to)1978-1983
Number of pages6
JournalJournal of Physical Chemistry Letters
Volume2
Issue number16
DOIs
Publication statusPublished - Aug 18 2011

Keywords

  • Nanoparticles and Nanostructures

ASJC Scopus subject areas

  • Materials Science(all)
  • Physical and Theoretical Chemistry

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