Sorting of polystyrene microspheres using a Y-branched optical waveguide
Sorting of polystyrene microspheres using a Y-branched optical waveguide
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.
1-7
Grujic, K.
31e79dff-33ca-4aa3-90d4-cc08d1fefaed
Hellesø, O.G.
79e9b15b-e42c-4a15-8465-d1838152a090
Hole, J.P.
97666e85-e127-436d-867a-27d1948f83d5
Wilkinson, J.S.
73483cf3-d9f2-4688-9b09-1c84257884ca
2005
Grujic, K.
31e79dff-33ca-4aa3-90d4-cc08d1fefaed
Hellesø, O.G.
79e9b15b-e42c-4a15-8465-d1838152a090
Hole, J.P.
97666e85-e127-436d-867a-27d1948f83d5
Wilkinson, J.S.
73483cf3-d9f2-4688-9b09-1c84257884ca
Grujic, K., Hellesø, O.G., Hole, J.P. and Wilkinson, J.S.
(2005)
Sorting of polystyrene microspheres using a Y-branched optical waveguide.
Optics Express, 13 (1), .
(doi:10.1364/OPEX.13.000001).
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.
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Published date: 2005
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Local EPrints ID: 15028
URI: http://eprints.soton.ac.uk/id/eprint/15028
ISSN: 1094-4087
PURE UUID: f0f0ae5e-46d5-4137-9308-e80c8e1c9940
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Date deposited: 10 May 2005
Last modified: 16 Mar 2024 02:33
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Author:
K. Grujic
Author:
O.G. Hellesø
Author:
J.P. Hole
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