Optical nanotrapping using cloaking metamaterial.
We study the electromagnetic behavior of spherical semishell structures that have cloaking material properties proposed by Pendry, Schurig, and Smith [Science 312, 1780 (2006)]. We use three-dimensional full-wave time-harmonic field analysis to evaluate the field and dipolar force distribution produced by these structures in free-space under plane wave illumination. We show that the optical force in proximity to these structures is suitable for active and size-selective manipulation and trapping of neutral nanoscale particles.
Furlani
Edward P
EP
The Institute for Lasers, Photonics and Biophotonics, State University of New York at Buffalo, Buffalo, New York 14260, USA. efurlani@buffalo.edu
Baev
Alexander
A