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Trapping two types of particles using a focused partially coherent elegant Laguerre–Gaussian beam |
Optics Letters, Vol. 36, Issue 12, pp. 2251-2253 (2011)
http://dx.doi.org/10.1364/OL.36.002251
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Abstract
The radiation forces on a Rayleigh dielectric sphere induced by a focused partially coherent elegant Laguerre– Gaussian (ELG) beam are investigated by using the Rayleigh scattering theory. It is found that a focused partially coherent ELG beam with suitable mode orders can be used to trap a Rayleigh particle whose refractive index is larger or smaller than that of the ambient by varying its initial spatial coherence width. Therefore, one can use one optical–trap system to trap two types of particles with different refractive indices.
© 2011 Optical Society of America
OCIS Codes
(030.1670) Coherence and statistical optics : Coherent optical effects
(140.7010) Lasers and laser optics : Laser trapping
(290.5870) Scattering : Scattering, Rayleigh
(350.5500) Other areas of optics : Propagation
ToC Category:
Lasers and Laser Optics
History
Original Manuscript: April 6, 2011
Manuscript Accepted: May 7, 2011
Published: June 8, 2011
Virtual Issues
Vol. 6, Iss. 7 Virtual Journal for Biomedical Optics
Citation
Chengliang Zhao and Yangjian Cai, "Trapping two types of particles using a focused partially coherent elegant Laguerre–Gaussian beam," Opt. Lett. 36, 2251-2253 (2011)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-36-12-2251
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