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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 14 — Jul. 15, 2012
  • pp: 3000–3002

Planar optical tweezers using tapered-waveguide junctions

Hong Cai and Andrew W. Poon  »View Author Affiliations


Optics Letters, Vol. 37, Issue 14, pp. 3000-3002 (2012)
http://dx.doi.org/10.1364/OL.37.003000


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Abstract

We demonstrate planar optical tweezers using the evanescent field of a silicon nitride tapered-waveguide junction between a singlemode waveguide and a multimode waveguide. Our experiments show that the junction embedded in a fluidic channel holds up to one and two polystyrene particles of sizes of 2.2 μm and 1 μm, respectively. The trapped particles are successively substituted by the incoming particles. Our experiments and numerical modeling reveal that the junction particle trapping depends on particle size and number.

© 2012 Optical Society of America

OCIS Codes
(170.4520) Medical optics and biotechnology : Optical confinement and manipulation
(230.3120) Optical devices : Integrated optics devices
(230.7370) Optical devices : Waveguides

ToC Category:
Optical Devices

History
Original Manuscript: May 4, 2012
Revised Manuscript: June 8, 2012
Manuscript Accepted: June 8, 2012
Published: July 13, 2012

Virtual Issues
Vol. 7, Iss. 9 Virtual Journal for Biomedical Optics

Citation
Hong Cai and Andrew W. Poon, "Planar optical tweezers using tapered-waveguide junctions," Opt. Lett. 37, 3000-3002 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-14-3000


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