Silver nanoparticle array structures that produce giant enhancements in electromagnetic fields

Shengli Zou, George C Schatz

Research output: Contribution to journalArticle

275 Citations (Scopus)

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
Pages (from-to)62-67
Number of pages6
JournalChemical Physics Letters
Volume403
Issue number1-3
DOIs
Publication statusPublished - Feb 14 2005

Fingerprint

Silver
Electromagnetic fields
Raman scattering
electromagnetic fields
silver
Nanoparticles
Light extinction
nanoparticles
Molecules
augmentation
Photonics
Raman spectra
molecules
extinction
photonics
electromagnetism
Experiments
excitation
interactions

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics
  • Surfaces and Interfaces
  • Condensed Matter Physics

Cite this

Silver nanoparticle array structures that produce giant enhancements in electromagnetic fields. / Zou, Shengli; Schatz, George C.

In: Chemical Physics Letters, Vol. 403, No. 1-3, 14.02.2005, p. 62-67.

Research output: Contribution to journalArticle

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