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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 1 — Jan. 10, 2005
  • pp: 1–7

Sorting of polystyrene microspheres using a Y-branched optical waveguide

K. Grujic, O. G. Hellesø, J. P. Hole, and J. S. Wilkinson  »View Author Affiliations


Optics Express, Vol. 13, Issue 1, pp. 1-7 (2005)
http://dx.doi.org/10.1364/OPEX.13.000001


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Abstract

We demonstrate how a Y-branched optical waveguide can be used for microparticle sorting. Polystyrene microparticles, optically guided in the waveguide’s evanescent field, are directed down the desired, more strongly illuminated, output branch. The output of a fibre laser at a wavelength of 1066 nm is coupled to the waveguide by direct butting. The power distribution between the two output branches is selected by the relative position of the fibre to the waveguide input facet. This provides a simple method for reliable particle sorting with very high probability of success under appropriate conditions. The method can be easily combined with other particle manipulation techniques of interest for micro total analysis systems of the future.

© 2005 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(140.7010) Lasers and laser optics : Laser trapping
(170.4520) Medical optics and biotechnology : Optical confinement and manipulation
(230.7380) Optical devices : Waveguides, channeled

ToC Category:
Research Papers

History
Original Manuscript: November 16, 2004
Revised Manuscript: December 17, 2004
Manuscript Accepted: December 17, 2004
Published: January 10, 2005

Citation
K. Grujic, O. G. Hellesø, J. P. Hole, and J. S. Wilkinson, "Sorting of polystyrene microspheres using a Y-branched optical waveguide," Opt. Express 13, 1-7 (2005)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-13-1-1


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References

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