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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry Van Driel
  • Vol. 26, Iss. 11 — Nov. 1, 2009
  • pp: 2109–2116

Optical forces on a Mie spheroidal particle arbitrarily oriented in a counterpropagating trap

Héctor Sosa-Martínez and Julio C. Gutiérrez-Vega  »View Author Affiliations


JOSA B, Vol. 26, Issue 11, pp. 2109-2116 (2009)
http://dx.doi.org/10.1364/JOSAB.26.002109


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Abstract

The axial and transverse optical forces exerted by Gaussian beams on an arbitrarily oriented and homogeneous spheroid are calculated and studied within the framework of the Mie theory. The results are applied to study the behavior of the forces in a counterpropagating optical trap. We calculate the trapping efficiencies for a wide range of physical parameters, including the beam waist separation distance, the equivalent spheroid radius, the spheroid eccentricity, and the refractive index ratio between the particle and the surrounding medium.

© 2009 Optical Society of America

OCIS Codes
(140.7010) Lasers and laser optics : Laser trapping
(290.0290) Scattering : Scattering
(290.5850) Scattering : Scattering, particles

ToC Category:
Scattering

History
Original Manuscript: July 15, 2009
Manuscript Accepted: September 15, 2009
Published: October 19, 2009

Virtual Issues
Vol. 4, Iss. 13 Virtual Journal for Biomedical Optics

Citation
Héctor Sosa-Martínez and Julio C. Gutiérrez-Vega, "Optical forces on a Mie spheroidal particle arbitrarily oriented in a counterpropagating trap," J. Opt. Soc. Am. B 26, 2109-2116 (2009)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-26-11-2109

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