Optical forces near a nanoantenna

Martin Ploschner; Michael Mazilu; Thomas F. Krauss; Kishan Dholakia

doi:10.1117/1.3332850

Optical forces near a nanoantenna

Martin Ploschner, Michael Mazilu, Thomas F. Krauss, Kishan Dholakia

Department of Physics

Research output: Contribution to journal › Article › peer-review

61 Citations (Scopus)

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.

Original language	English
Article number	041570
Journal	Journal of Nanophotonics
Volume	4
Issue number	1
DOIs	https://doi.org/10.1117/1.3332850
Publication status	Published - 2010

Bibliographical note

Funding Information:
We thank the UK Engineering and Physical Sciences Research Council for funding, KD is a Royal Society-Wolfson Merit Award Holder.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1117/1.3332850

Cite this

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Optical forces near a nanoantenna

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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