Optics of metal nanoparticle aggregates with light induced motion

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.

Comments

Full text here: http://www.opticsinfobase.org/oe/abstract.cfm?URI=OPEX-15-14-8639

Citation

OPTICS EXPRESS 18 11698-11705 SEP 3

Date of this Version

July 2007

This document is currently not available here.

Share

COinS