Optics of metal nanoparticle aggregates with light induced motion

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

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

Light-induced forces between metal nanoparticles change the geometry of the aggregates and affect their optical properties. Light absorption, scattering and scattering of a probe beam are numerically studied with Newton's equations and the coupled dipole equations for penta-particle aggregates. The relative changes in optical responses are large compared with the linear, low-intensity limit and relatively fast with nanosecond characteristic times. Time and intensity dependencies are shown to be sensitive to the initial potential of the aggregation forces.

Original languageEnglish
Pages (from-to)8639-8648
Number of pages10
JournalOptics Express
Volume15
Issue number14
DOIs
Publication statusPublished - 9 Jul 2007
Externally publishedYes

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