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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editor: Gregory W. Faris
  • Vol. 2, Iss. 6 — Jun. 13, 2007

Dielectric microsphere manipulation and chain assembly by counter-propagating waves in a channel waveguide

Katarina Grujic and Olav Gaute Hellesø  »View Author Affiliations

Optics Express, Vol. 15, Issue 10, pp. 6470-6477 (2007)

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We study the formation and the propulsion properties of chains of dielectric microspheres in the evanescent field of a channel waveguide made by Cs+ ion-exchange. Particle chains are shown to move faster than single particles. We exploit counter-propagating waves for axial positioning of single and chains of microspheres. The particles can be propelled back and forth at will, and trapped at a given point for several minutes. We demonstrate that this technique can also be used to assemble a long, one-particle wide, chain.

© 2007 Optical Society of America

OCIS Codes
(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:

Original Manuscript: February 22, 2007
Revised Manuscript: March 26, 2007
Manuscript Accepted: March 29, 2007
Published: May 11, 2007

Virtual Issues
Vol. 2, Iss. 6 Virtual Journal for Biomedical Optics

Katarina Grujic and Olav Gaute Hellesø, "Dielectric microsphere manipulation and chain assembly by counter-propagating waves in a channel waveguide," Opt. Express 15, 6470-6477 (2007)

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