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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry M. Van Driel
  • Vol. 24, Iss. 7 — Jul. 1, 2007
  • pp: 1596–1602

Transverse trapping forces of focused Gaussian beam on ellipsoidal particles

Shaohui Yan and Baoli Yao  »View Author Affiliations


JOSA B, Vol. 24, Issue 7, pp. 1596-1602 (2007)
http://dx.doi.org/10.1364/JOSAB.24.001596


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Abstract

A modified T-matrix method is presented to compute the scattered fields of various realistically shaped particles; then the radiation forces on the particles can be calculated via the Maxwell stress tensor integral. Numerical results of transverse trapping efficiencies of a focused Gaussian beam on ellipsoidal and spherical particles with the same volume are compared, which show that the shape and orientation of particles affect the maximal transverse trapping force and the displacement corresponding to the maximum. The effect of the polarization direction of the incident beam on the transverse trapping forces is also revealed.

© 2007 Optical Society of America

OCIS Codes
(140.7010) Lasers and laser optics : Laser trapping
(260.2110) Physical optics : Electromagnetic optics
(290.0290) Scattering : Scattering

ToC Category:
Physical Optics

History
Original Manuscript: February 12, 2007
Manuscript Accepted: February 28, 2007
Published: June 15, 2007

Virtual Issues
Vol. 2, Iss. 8 Virtual Journal for Biomedical Optics

Citation
Shaohui Yan and Baoli Yao, "Transverse trapping forces of focused Gaussian beam on ellipsoidal particles," J. Opt. Soc. Am. B 24, 1596-1602 (2007)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-24-7-1596

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