Light-induced dynamics of metal aggregated nanoparticles

Sergey V. Perminov; Vladimir P. Drachev; Sergei G. Rautian

doi:10.1117/12.739998

10 April 2007 Light-induced dynamics of metal aggregated nanoparticles

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

Proceedings Volume 6613, Laser Optics 2006: Wavefront Transformation and Laser Beam Control; 66130J (2007) https://doi.org/10.1117/12.739998
Event: Laser Optics 2006, 2006, St. Petersburg, Russian Federation

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.

Citation Download Citation

Sergey V. Perminov, Vladimir P. Drachev, and Sergei G. Rautian "Light-induced dynamics of metal aggregated nanoparticles", Proc. SPIE 6613, Laser Optics 2006: Wavefront Transformation and Laser Beam Control, 66130J (10 April 2007); https://doi.org/10.1117/12.739998

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