Light-induced dynamics of metal aggregated nanoparticles

Sergey V. Perminov, Vladimir P. Drachev, Sergey G. Rautian

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

The light-induced forces in the aggregates of metal nanoparticles are studied with the Newton's and coupled dipole equations. The simulations imply a linear intrinsic optical response of the particles and host medium. Large and relatively fast third-order optical nonlinearity of such a nanocomposite is shown to originate from the light-induced motion of the particles. The nonlinear absorption coefficients of an artificial medium composed of 5-particles aggregates are simulated at different intensities and frequencies of the incident light. The calculated nonlinear absorption appears to be of the same order of magnitude as typically measured for the silver colloids.

Original languageEnglish
Title of host publicationLaser Optics 2006
Subtitle of host publicationWavefront Transformation and Laser Beam Control
DOIs
Publication statusPublished - 2007
Externally publishedYes
EventLaser Optics 2006: Wavefront Transformation and Laser Beam Control - St. Petersburg, Russian Federation
Duration: 26 Jun 200630 Jun 2006

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6613
ISSN (Print)0277-786X

Conference

ConferenceLaser Optics 2006: Wavefront Transformation and Laser Beam Control
Country/TerritoryRussian Federation
CitySt. Petersburg
Period26/06/0630/06/06

Keywords

  • Metal nanoparticles aggregates
  • Nanocomposite
  • Optical nonlinearity
  • Ponderomotive forces

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