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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 10 — May. 16, 2005
  • pp: 3896–3901

Velocity distribution of Gold nanoparticles trapped on an optical waveguide

J. Patrick Hole, James S. Wilkinson, Katarina Grujic, and Olav Gaute Hellesø  »View Author Affiliations


Optics Express, Vol. 13, Issue 10, pp. 3896-3901 (2005)
http://dx.doi.org/10.1364/OPEX.13.003896


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Abstract

The velocity distributions of 250nm diameter gold nanospheres trapped in the evanescent fields of optical waveguides are studied. The automated analysis of a large number of particles and temporal frames is described. It is used to show that the envelope of the particles’ speed follows the mode intensity profile of the evanescent field along a length of the waveguide and across its width. Modal beating in a dual-moded waveguide is mapped by analysis of nanoparticle distributions above the waveguide. A modal power of ~150mW at l=1066nm in a Cs+ ion-exchanged monomode waveguide results in speeds of up to 500µm/s.

© 2005 Optical Society of America

OCIS Codes
(100.2960) Image processing : Image analysis
(130.3120) Integrated optics : Integrated optics devices
(140.7010) Lasers and laser optics : Laser trapping
(230.7380) Optical devices : Waveguides, channeled

ToC Category:
Research Papers

History
Original Manuscript: March 11, 2005
Revised Manuscript: May 11, 2005
Published: May 16, 2005

Citation
John Hole, James Wilkinson, Katarina Grujic, and Olav Hellesø, "Velocity distribution of Gold nanoparticles trapped on an optical waveguide," Opt. Express 13, 3896-3901 (2005)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-13-10-3896


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References

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