Polymer Composites of Nanostructured Gold and Their Third-Order Nonlinear Optical Properties

Kenneth E. Gonsalves, G. Carlson, J. Kumar, F. Aranda, M. Jose-Yacaman

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Using a phase-transfer reaction, 1-10 nm gold particles were synthesized. The particles, functionalized by dodecanethiol, were stable at room temperature over a period of months. The particles were characterized by UV-visible spectroscopy, and transmission electron microscopy (TEM). Composite films were prepared by dispersing the gold in polystyrene, poly(methyl methacrylate), and poly(phenylmethylsilane). Using degenerate four-wave mixing (DFWM), the third-order nonlinear optical susceptibilities of the materials was measured (λ = 532 run). The nonlinearity of the gold was found to be negative (i.e., opposite sign of CS2) with a magnitude of 1.0 × 10-10 e.s.u. for a film containing 4.4 mg gold particles per ml of PMMA.

Original languageEnglish (US)
Pages (from-to)151-161
Number of pages11
JournalACS Symposium Series
Volume622
DOIs
StatePublished - 1996
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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