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Optics Express

Optics Express

  • Vol. 17, Iss. 7 — Mar. 30, 2009
  • pp: 5321–5329

Optical sorting of dielectric Rayleigh spherical particles with scattering and standing waves

Adrian Neild, Tuck Wah Ng, and Winston Ming Shen Yii  »View Author Affiliations

Optics Express, Vol. 17, Issue 7, pp. 5321-5329 (2009)

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An all optical method for dielectric Rayleigh particle sorting possesses significant advantages. Here, we describe an approach that applies optical scattering forces to translate varied sized particles differentially from a surface followed by the introduction of an optical standing wave to maintain and tighten the positional tolerance of the differentiated particles in the medium. Numerical simulation demonstrates the workability of this scheme; which is highly dependent on Brownian forces typically dominant at this length scale. It also shows the significant impact of temperature and medium viscosity on the operation of this technique.

© 2009 Optical Society of America

OCIS Codes
(140.7010) Lasers and laser optics : Laser trapping
(170.4520) Medical optics and biotechnology : Optical confinement and manipulation

ToC Category:
Optical Tweezers or Optical Manipulation

Original Manuscript: January 28, 2009
Revised Manuscript: February 24, 2009
Manuscript Accepted: March 10, 2009
Published: March 19, 2009

Virtual Issues
Vol. 4, Iss. 5 Virtual Journal for Biomedical Optics

Adrian Neild, Tuck Wah Ng, and Winston Ming Shen Yii, "Optical sorting of dielectric Rayleigh spherical particles with scattering and standing waves," Opt. Express 17, 5321-5329 (2009)

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