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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 2, Iss. 3 — Mar. 7, 2007

Large dielectrophoresis force and torque induced by localized surface plasmon resonance of Au nanoparticle array

Xiaoyu Miao and Lih Y. Lin  »View Author Affiliations


Optics Letters, Vol. 32, Issue 3, pp. 295-297 (2007)
http://dx.doi.org/10.1364/OL.32.000295


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Abstract

A new approach is proposed for manipulating and rotating micro- or nano-objects by using polarized laser light with low intensity. The polarized light excites resonant dipoles on a cap-shaped Au nanoparticle array, which generates a highly nonuniform radiation field that induces large dielectrophoresis force on dielectric objects. The orientation control of the objects is realized by adjusting the polarization direction of the incident light. Theoretical modeling, fabrication, and characterization results for the cap-shaped Au nanoparticle array, as well as preliminary trapping results, are reported.

© 2007 Optical Society of America

OCIS Codes
(140.7010) Lasers and laser optics : Laser trapping
(240.6680) Optics at surfaces : Surface plasmons
(260.3910) Physical optics : Metal optics

ToC Category:
Physical Optics

History
Original Manuscript: September 8, 2006
Revised Manuscript: October 19, 2006
Manuscript Accepted: October 20, 2006
Published: January 12, 2007

Virtual Issues
Vol. 2, Iss. 3 Virtual Journal for Biomedical Optics

Citation
Xiaoyu Miao and Lih Y. Lin, "Large dielectrophoresis force and torque induced by localized surface plasmon resonance of Au nanoparticle array," Opt. Lett. 32, 295-297 (2007)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-32-3-295


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References

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  8. X. Miao, H. Liao, and L. Y. Lin, in Proceedings of IEEE International Conference on Optical MEMS and Their Applications (IEEE, 2005), pp. 15-16. [CrossRef]

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