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Advances in OptoElectronics
Volume 2012 (2012), Article ID 595646, 6 pages
http://dx.doi.org/10.1155/2012/595646
Research Article

Optical Manipulation with Plasmonic Beam Shaping Antenna Structures

1Center for Integrated Nanotechnologies (CINT), Sandia National Laboratories, Albuquerque, NM 87185, USA
2Sandia National Laboratories, Albuquerque, NM 87185, USA

Received 6 June 2012; Accepted 16 July 2012

Academic Editor: Alexandra E. Boltasseva

Copyright © 2012 Young Chul Jun and Igal Brener. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Near-field optical trapping of objects using plasmonic antenna structures has recently attracted great attention. However, metal nanostructures also provide a compact platform for general wavefront engineering of intermediate and far-field beams. Here, we analyze optical forces generated by plasmonic beam shaping antenna structures and show that they can be used for general optical manipulation such as guiding of a dielectric particle along a linear or curved trajectory. This removes the need for bulky diffractive optical components and facilitates the integration of optical force manipulation into a highly functional, compact system.