Electromagnetic field enhancement for wedge-shaped metal nanostructures

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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


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 (US)
Pages (from-to)1978-1983
Number of pages6
JournalJournal of Physical Chemistry Letters
Issue number16
StatePublished - Aug 18 2011


  • Nanoparticles and Nanostructures

ASJC Scopus subject areas

  • General Materials Science


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