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Proceedings Paper

Radiation force exerted on subwavelenth particles near a nanoaperture
Author(s): Kenji Okamoto; Satoshi Kawata
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Paper Abstract

We investigate the possibility of optical trapping by evanescent photons localized near a subwavelength aperture. The radiation force exerted on a dielectric sphere near the aperture is numerically analyzed, and the result shows that the force on the sphere is attractive to the aperture. It is also found that the magnitude of the radiation force is larger than those of two other forces, the gravity and the force due to thermal fluctuation in water.

Paper Details

Date Published: 7 May 1999
PDF: 4 pages
Proc. SPIE 3740, Optical Engineering for Sensing and Nanotechnology (ICOSN '99), (7 May 1999); doi: 10.1117/12.347828
Show Author Affiliations
Kenji Okamoto, Osaka Univ. (Japan)
Satoshi Kawata, Osaka Univ. (Japan)

Published in SPIE Proceedings Vol. 3740:
Optical Engineering for Sensing and Nanotechnology (ICOSN '99)
Ichirou Yamaguchi, Editor(s)

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