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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 22 — Aug. 1, 2009
  • pp: 4291–4296

Nondimensional analysis of particle behavior during cross-type optical particle separation

Sang Bok Kim, Hyung Jin Sung, and Sang Soo Kim  »View Author Affiliations


Applied Optics, Vol. 48, Issue 22, pp. 4291-4296 (2009)
http://dx.doi.org/10.1364/AO.48.004291


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Abstract

A nondimensional analysis of particle behavior during cross-type optical particle separation was performed. A new dimensionless number, S, was defined as the ratio of the optical force to the viscous drag force, and the effects of varying S on particle motion were examined. For large S, the particles undergo acceleration, deceleration, and release as they pass through the laser beam. The retention distance is much longer for large S than for small S. In addition, the effects on particle behavior of varying the wavelength of the laser beam, the particle size, and the index of refraction of the particles were investigated. Furthermore, an analytical expression of the retention distance for large S was validated.

© 2009 Optical Society of America

OCIS Codes
(080.0080) Geometric optics : Geometric optics
(260.0260) Physical optics : Physical optics

ToC Category:
Physical Optics

History
Original Manuscript: May 14, 2009
Revised Manuscript: July 3, 2009
Manuscript Accepted: July 10, 2009
Published: July 21, 2009

Citation
Sang Bok Kim, Hyung Jin Sung, and Sang Soo Kim, "Nondimensional analysis of particle behavior during cross-type optical particle separation," Appl. Opt. 48, 4291-4296 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-22-4291

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