Calculation of the Radiation Trapping Force for Laser Tweezers by Use of Generalized Lorenz-Mie Theory. I. Localized Model Description of an On-Axis Tightly Focused Laser Beam with Spherical Aberration
Applied Optics, Vol. 43, Issue 12, pp. 2532-2544 (2004)
http://dx.doi.org/10.1364/AO.43.002532
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Abstract
Calculation of the radiation trapping force in laser tweezers by use of generalized Lorenz-Mie theory requires knowledge of the shape coefficients of the incident laser beam. The localized version of these coefficients has been developed and justified only for a moderately focused Gaussian beam polarized in the x direction and traveling in the positive z direction. Here the localized model is extended to a beam tightly focused and truncated by a high-numerical-aperture lens, aberrated by its transmission through the wall of the sample cell, and incident upon a spherical particle whose center is on the beam axis. We also consider polarization of the beam in the y direction and propagation in the negative z direction to be able to describe circularly polarized beams and reflected beams.
© 2004 Optical Society of America
OCIS Codes
(140.7010) Lasers and laser optics : Laser trapping
(290.4020) Scattering : Mie theory
Citation
James A. Lock, "Calculation of the Radiation Trapping Force for Laser Tweezers by Use of Generalized Lorenz-Mie Theory. I. Localized Model Description of an On-Axis Tightly Focused Laser Beam with Spherical Aberration," Appl. Opt. 43, 2532-2544 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-12-2532
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