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Proceedings Paper

Optical waveguide trapping forces on hollow glass spheres
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Paper Abstract

Three dimensional finite element method is employed to determine optical trapping forces on hollow glass spheres on an optical waveguide. The evanescent field from the waveguide interacts mostly with the shell of the hollow glass sphere. We describe how the optical forces vary with shell thickness and particle size, and find the minimum shell thickness allowing trapping and propulsion of hollow glass spheres. Hollow glass spheres with shell thickness less than the minimum are repelled away from the optical waveguide. The simulation results are compared with analytical Mie calculations and experimental data.

Paper Details

Date Published: 16 February 2011
PDF: 9 pages
Proc. SPIE 7950, Complex Light and Optical Forces V, 79500P (16 February 2011); doi: 10.1117/12.873772
Show Author Affiliations
Pål Løvhaugen, Univ. of Tromsø (Norway)
Balpreet S. Ahluwalia, Univ. of Tromsø (Norway)
Olav G. Hellesø, Univ. of Tromsø (Norway)

Published in SPIE Proceedings Vol. 7950:
Complex Light and Optical Forces V
David L. Andrews; Enrique J. Galvez; Jesper Glückstad, Editor(s)

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