OSA's Digital Library

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)

View Full Text Article

Enhanced HTML    Acrobat PDF (215 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



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

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

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)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. A.  Wolff, I. R.  Perch-Nielsen, U. D.  Larsen, P.  Friis, G.  Goranovic, C. R.  Poulsen, J. P.  Kutter, P.  Telleman, “Integrating advanced functionality in a microfabricated high-throughput fluorescent-activated cell sorter,” Lab Chip 3, 22–27 (2003). [CrossRef]
  2. T.  Ichiki, S.  Shinbashi, T.  Ujiie, Y.  Horiike, “Microchip technologies for the analysis of biological cells,” J. Photopolymer Science and Techn. 15, 487–492 (2002). [CrossRef]
  3. G.  Blankenstein, U. D.  Larsen, “Modular concept of a laboratory on a chip for chemical and biochemical analysis,” Biosensors & Bioelectronics 13, 427–438 (1997). [CrossRef]
  4. H.  Andersson, A.  van den Berg, “Microfluidic devices for cellomics: a review,” Sensors and Actuators B 92, 315–325 (2003). [CrossRef]
  5. S. R.  Quake, A.  Scherer, “From micro- to nanofabrication with soft materials,” Science 290, 1536–1540 (2000). [CrossRef] [PubMed]
  6. T.  Takahashi, S.  Ogata, M.  Nishizawa, T.  Matsue, “A valveless switch for microparticle sorting with laminar flow streams and electrophoresis perpendicular to the direction of fluid stream,” Electrochem. Commun. 5, 175–177 (2003). [CrossRef]
  7. S. K.  Sia, G. M.  Whitesides, “Microfluidic devices fabricated in poly(dimethylsiloxane) for biological studies,” Electrophoresis 24, 3563–3576 (2003). [CrossRef] [PubMed]
  8. P. J.  Rodrigo, R. L.  Eriksen, V. R.  Daria, J.  Glükstad, “Interactive light-powered lab-on-a-chip: simultaneous actuation of microstructures by optical manipulation,” Proceedings of SPIE 5119, 54–59 (2003). [CrossRef]
  9. M. P.  MacDonald, G. C.  Spalding, K.  Dholakia, “Microfluidic sorting in an optical lattice,” Nature 426, 421–424 (2003). [CrossRef] [PubMed]
  10. S.  Kawata, T.  Sugiura, “Movement of micrometer-sized particles in the evanescent field of a laser beam,” Opt. Lett. 17, 772–774 (1992). [CrossRef] [PubMed]
  11. S.  Kawata, T.  Tani, “Optically driven Mie particles in an evanescent field along a channeled waveguide,” Opt. Lett. 21, 1768–1770 (1996). [CrossRef] [PubMed]
  12. T.  Tanaka, S.  Yamamoto, “Optically induced propulsion of small particles in an evanescent field of higher propagation mode in a multimode channeled waveguide,” Appl. Phys. Lett. 77, 3131–3133 (2000). [CrossRef]
  13. L.N.  Ng, M.N.  Zervas, J.S.  Wilkinson, “Manipulation of colloidal gold nanoparticles in the evanescent field of a channel waveguide,” Appl. Phys. Lett. 76 1993–1995 (2000). [CrossRef]
  14. L.N.  Ng, B.J.  Luff, M.N.  Zervas, J.S.  Wilkinson, “Propulsion of gold nanoparticles on optical waveguides,” Opt. Commun. 208 117–124 (2002). [CrossRef]
  15. K.  Grujic, O. G.  Hellesø, J. S.  Wilkinson, J.P.  Hole, “Optical propulsion of microspheres along a channel waveguide produced by Cs+ ion-exchange in glass,” Opt. Commun. 239, 227–235 (2004). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

Supplementary Material

» Media 1: MPG (2042 KB)     

Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited