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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 12 — Jun. 14, 2004
  • pp: 2670–2675

Exact radiation trapping force calculation based on vectorial diffraction theory

Djenan Ganic, Xiaosong Gan, and Min Gu  »View Author Affiliations


Optics Express, Vol. 12, Issue 12, pp. 2670-2675 (2004)
http://dx.doi.org/10.1364/OPEX.12.002670


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Abstract

There has been an interest to understand the trapping performance produced by a laser beam with a complex wavefront structure because the current methods for calculating trapping force ignore the effect of diffraction by a vectorial electromagnetic wave. In this letter, we present a method for determining radiation trapping force on a micro-particle, based on the vectorial diffraction theory and the Maxwell stress tensor approach. This exact method enables one to deal with not only complex apodization, phase, and polarization structures of trapping laser beams but also the effect of spherical aberration present in the trapping system.

© 2004 Optical Society of America

OCIS Codes
(050.1960) Diffraction and gratings : Diffraction theory
(110.0180) Imaging systems : Microscopy
(140.7010) Lasers and laser optics : Laser trapping
(260.1960) Physical optics : Diffraction theory

ToC Category:
Research Papers

History
Original Manuscript: May 14, 2004
Revised Manuscript: May 30, 2004
Published: June 14, 2004

Citation
Djenan Ganic, Xiaosong Gan, and Min Gu, "Exact radiation trapping force calculation based on vectorial diffraction theory," Opt. Express 12, 2670-2675 (2004)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-12-12-2670


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