Hyper-Rayleigh scattering studies of silver, copper, and platinum nanoparticle suspensions

Robert C. Johnson, Jiangtian Li, Joseph T. Hupp, George C. Schatz

Research output: Contribution to journalArticle

140 Citations (Scopus)

Abstract

The optical frequency doubling properties of silver, copper, and platinum nanoparticles in aqueous solution are studied via hyper-Rayleigh scattering (HRS) spectroscopy. Substantial HRS responses are observed for silver and copper particles. The response is attributed to enhancement due to resonance of the nonlinearly scattered light with the particles' surface plasmon absorption band. Platinum particles, which lack visible-region plasmon absorption, do not display detectable HRS signals. The largest signals from silver particles are observed under conditions of two-photon resonance, qualitatively consistent with the predictions of available theory; smaller yet still impressive signals are observed under pre- and post-resonant conditions.

Original languageEnglish
Pages (from-to)534-540
Number of pages7
JournalChemical Physics Letters
Volume356
Issue number5-6
DOIs
Publication statusPublished - Apr 26 2002

Fingerprint

Rayleigh scattering
Platinum
Silver
Copper
Suspensions
platinum
silver
Nanoparticles
copper
nanoparticles
Absorption spectra
Photons
Spectroscopy
aqueous solutions
absorption spectra
augmentation
photons
predictions
spectroscopy

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics

Cite this

Hyper-Rayleigh scattering studies of silver, copper, and platinum nanoparticle suspensions. / Johnson, Robert C.; Li, Jiangtian; Hupp, Joseph T.; Schatz, George C.

In: Chemical Physics Letters, Vol. 356, No. 5-6, 26.04.2002, p. 534-540.

Research output: Contribution to journalArticle

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