Silver nanoparticle array structures that produce giant enhancements in electromagnetic fields

Shengli Zou, George C Schatz*

*Corresponding author for this work

Research output: Contribution to journalArticle

296 Scopus citations

Abstract

We describe special silver nanoparticle array structures that lead to exceptionally large electromagnetic field enhancements (|E|2 > 107) at specific locations in the structure, thus providing a purely electromagnetic mechanism for producing single molecule surface enhanced Raman scattering (SMSERS) enhancements >1013 that are as large or larger than has been found in experiments. The arrays combine particle plasmon excitation with long range photonic interactions, leading to a combination of the two field enhancement mechanisms that not only gives large SMSERS, but also narrow peaks in extinction.

Original languageEnglish (US)
Pages (from-to)62-67
Number of pages6
JournalChemical Physics Letters
Volume403
Issue number1-3
DOIs
StatePublished - Feb 14 2005

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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