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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 8, Iss. 2 — Mar. 4, 2013

Modeling highly focused laser beam in optical tweezers with the vector Gaussian beam in the T-matrix method

Paul B. Bareil and Yunlong Sheng  »View Author Affiliations


JOSA A, Vol. 30, Issue 1, pp. 1-6 (2013)
http://dx.doi.org/10.1364/JOSAA.30.000001


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Abstract

The vector Gaussian beam with high-order corrections is used to describe accurately the laser beam up to numerical aperture NA=1.20 in the optical tweezers for trapping nanoparticles. The beam is then expanded in the T-matrix method into the vector spherical wave function (VSWF) series using the point matching method with a new selection of the matching points. The errors in the beam description and in the VSWF expansion are much lower than those that occur in the paraxial Gaussian beam model.

© 2012 Optical Society of America

OCIS Codes
(140.7010) Lasers and laser optics : Laser trapping
(260.2110) Physical optics : Electromagnetic optics
(350.4855) Other areas of optics : Optical tweezers or optical manipulation

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: August 28, 2012
Manuscript Accepted: September 18, 2012
Published: December 4, 2012

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

Citation
Paul B. Bareil and Yunlong Sheng, "Modeling highly focused laser beam in optical tweezers with the vector Gaussian beam in the T-matrix method," J. Opt. Soc. Am. A 30, 1-6 (2013)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=josaa-30-1-1


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