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Proceedings Paper

New developments on the design and modeling of fiber optical tweezers
Author(s): R. S. Rodrigues Ribeiro; P. A. S. Jorge; A. Guerreiro
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Paper Abstract

The intensity profile of a focused beam of light can exert small drift forces on particles with a few microns and even smaller, which can be used to confine or manipulate them. Optical trapping has several applications, in particular it has been adopted as a powerful tool in biology, allowing, for instance to manipulate in vivo single cells. A wide variety of optical setups have been implemented to optically trap microscopic bodies, however, the single beam trap using a tightly focused Gaussian beam continues to be the most used. Recent developments introduced an alternative to bulk optical trapping systems based on lensed optical fibers. This work presents simulations showing new designs of fiber optic and 2D waveguide tweezers based on studies of the forces acting on dielectric particles immersed in media with a distinct refractive index, which take into account the refractive index and structure of the particles.

Paper Details

Date Published: 18 November 2013
PDF: 5 pages
Proc. SPIE 8785, 8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications, 8785F9 (18 November 2013); doi: 10.1117/12.2027443
Show Author Affiliations
R. S. Rodrigues Ribeiro, INESC Porto (Portugal)
Univ. do Porto (Portugal)
P. A. S. Jorge, Univ. do Porto (Portugal)
A. Guerreiro, INESC Porto (Portugal)
Univ. do Porto (Portugal)

Published in SPIE Proceedings Vol. 8785:
8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications
Manuel Filipe P. C. Martins Costa, Editor(s)

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