Sorting of polystyrene microspheres using a Y-branched optical waveguide


Grujic, K., Helleso, O.G., Hole, J.P. and Wilkinson, J.S. (2005) Sorting of polystyrene microspheres using a Y-branched optical waveguide. Optics Express, 13, (1), 1-7.

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Description/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.

Item Type: Article
Related URLs:
Divisions: Faculty of Physical and Applied Science > Optoelectronics Research Centre
Item ID: 268132
Date Deposited: 27 Oct 2009 11:02
Last Modified: 29 Jan 2013 16:43
Contributors: Grujic, K. (Author)
Helleso, O.G. (Author)
Hole, J.P. (Author)
Wilkinson, J.S. (Author)
Date: 2005
Status: Published
URI: http://eprints.soton.ac.uk/id/eprint/268132

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