Dimensionless Parameters for the Design of Optical Traps and Laser Guidance Systems
Applied Optics, Vol. 43, Issue 20, pp. 3999-4006 (2004)
http://dx.doi.org/10.1364/AO.43.003999
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Abstract
Optical traps are routinely used for the manipulation of neutral particles. However, optical trap design is limited by the lack of an accurate theory. The generalized Lorenz-Mie theory (GLMT) solves the scattering problem for arbitrary particle size and predicts radial forces accurately. Here we show that the GLMT predicts the observed radial and axial forces in a variety of optical manipulators. We also present a dimensionless parameter β for the prediction of axial forces. Coupled with our correlation for radial escape forces, we now have a set of two simple correlations for the practical design of radiation-force-based systems.
© 2004 Optical Society of America
OCIS Codes
(000.1430) General : Biology and medicine
(140.7010) Lasers and laser optics : Laser trapping
(170.6930) Medical optics and biotechnology : Tissue
(220.4830) Optical design and fabrication : Systems design
(290.4020) Scattering : Mie theory
(290.5870) Scattering : Scattering, Rayleigh
Citation
Yaakov K. Nahmias, Bruce Zhi Gao, and David J. Odde, "Dimensionless Parameters for the Design of Optical Traps and Laser Guidance Systems," Appl. Opt. 43, 3999-4006 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-20-3999
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