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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editor: Gregory W. Faris
  • Vol. 4, Iss. 2 — Feb. 10, 2009

Reversal of the optical force in a plasmonic trap

Lina Huang and Olivier J.F. Martin  »View Author Affiliations

Optics Letters, Vol. 33, Issue 24, pp. 3001-3003 (2008)

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We study in detail the optical forces generated by a plasmonic trap on a plasmonic nanoparticle. The permittivity of the trapped particle is tuned using a Drude model. The interplay between the plasmon resonances of the trap and of the particle can produce different regimes leading to attractive or repulsive forces. Hence a particle will be trapped or repulsed depending on its permittivity. Such a physical system should provide new functionalities for lab-on-the-chip applications.

© 2008 Optical Society of America

OCIS Codes
(020.7010) Atomic and molecular physics : Laser trapping
(240.6680) Optics at surfaces : Surface plasmons

ToC Category:
Optics at Surfaces

Original Manuscript: September 17, 2008
Manuscript Accepted: October 20, 2008
Published: December 12, 2008

Virtual Issues
Vol. 4, Iss. 2 Virtual Journal for Biomedical Optics

Lina Huang and Olivier J. F. Martin, "Reversal of the optical force in a plasmonic trap," Opt. Lett. 33, 3001-3003 (2008)

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