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Proceedings Paper

Optical forces on a spheroidal microparticle using a classical optics approximation
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Paper Abstract

In this study we report a detailed description of the trapping forces exerted on an arbitrary oriented micron-sized dielectric spheroid by means of a counterpropagating dual-beam optical trap with a Gaussian transverse field pattern, using a classical optics approximation. Our analysis includes the calculation of the transverse and axial trapping efficiencies as function of the normalized beam waist separation distance, normalized spheroid size, effective index of refraction of the microparticle and ellipticity of the spheroid. The trapping forces produced are compared with those obtained for spheres.

Paper Details

Date Published: 20 August 2009
PDF: 11 pages
Proc. SPIE 7400, Optical Trapping and Optical Micromanipulation VI, 74002B (20 August 2009); doi: 10.1117/12.825294
Show Author Affiliations
Héctor Sosa-Martínez, Tecnológico de Monterrey (Mexico)
Julio C. Gutiérrez-Vega, Tecnológico de Monterrey (Mexico)

Published in SPIE Proceedings Vol. 7400:
Optical Trapping and Optical Micromanipulation VI
Kishan Dholakia; Gabriel C. Spalding, Editor(s)

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