Geometry dependent features of optically induced forces between silver nanoparticles

Vance Wong*, Mark A. Ratner

*Corresponding author for this work

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

A recently devised, discrete-dipole approximation (DDA) based method for computing optical forces is used to explore geometry dependent aspects of the light induced interactions between pairs of silver nanoparticles, including the influence of particle shape, relative positioning of the particles, and incident field orientation. The interactions are observed to have a large degree of generic character, independent of the details of the particle shape. The size of the optical forces is also compared to estimates for the van der Waals forces, and the results are used to assess the potential importance of radiation forces on recent experiments demonstrating photoinduced self-assembly of triangular silver nanoprisms.

Original languageEnglish (US)
Pages (from-to)19243-19253
Number of pages11
JournalJournal of Physical Chemistry B
Volume110
Issue number39
DOIs
StatePublished - Oct 5 2006

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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