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Journal of Nanophotonics

Optical forces near a nanoantenna
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Paper Abstract

The Maxwell stress tensor method is used to calculate the optical forces acting upon a glass nanosphere in the proximity of optically excited gold nanoantenna structures. The dependence of optical forces over a full range of excitation angles is explored: the total internal reflection excitation does not bring any particular advantage to trapping efficiency when compared to the normal incidence excitation. Our calculations show multiple trapping sites with similar trapping properties for the normal and the total internal reflection cases, respectively; furthermore, the convective heating probably dominates over any optical forces in such systems.

Paper Details

Date Published: 1 February 2010
PDF: 13 pages
J. Nanophoton. 4(1) 041570 doi: 10.1117/1.3332850
Published in: Journal of Nanophotonics Volume 4, Issue 1
Show Author Affiliations
Martin Ploschner, Univ. of St. Andrews (United Kingdom)
Michael Mazilu, Univ. of St. Andrews (United Kingdom)
Thomas F. Krauss, Univ. of St. Andrews (United Kingdom)
Kishan Dholakia, Univ. of St. Andrews (United Kingdom)

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