Optical whirlpool near absorbing metallic nanoparticle
Other Condensed Matter
2009-11-11 v2
Abstract
The power-flow lines of light interacting with a metallic nanoparticle, in the proximity of its plasmon resonance, form whirlpool-like nanoscale optical vortices. Two different types of vortex have been detected. The outward vortex first penetrates the particle near its centerline then, on exiting the particle, the flow-lines turn away from the centerline and enter a spiral trajectory. Outward vortexes are seen for the wavelengths shorter then the plasmon resonance. For the wavelengths longer that the plasmon resonance the vortex is inward: the power-flow lines pass around the sides of the particle before turning towards the centerline and entering the particle to begin their spiral trajectory.
Cite
@article{arxiv.cond-mat/0505484,
title = {Optical whirlpool near absorbing metallic nanoparticle},
author = {M. V. Bashevoy and V. A. Fedotov and N. I. Zheludev},
journal= {arXiv preprint arXiv:cond-mat/0505484},
year = {2009}
}
Comments
4 pages, 3 figures