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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 16 — Aug. 11, 2014
  • pp: 19567–19572

Plasmonic graded nano-disks as nano-optical conveyor belt

Zhiwen Kang, Haifei Lu, Jiajie Chen, Kun Chen, Fang Xu, and Ho-Pui Ho  »View Author Affiliations

Optics Express, Vol. 22, Issue 16, pp. 19567-19572 (2014)

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We propose a plasmonic system consisting of nano-disks (NDs) with graded diameters for the realization of nano-optical conveyor belt. The system contains a couple of NDs with individual elements coded with different resonant wavelengths. By sequentially switching the wavelength and polarization of the excitation source, optically trapped target nano-particle can be transferred from one ND to another. The feasibility of such function is verified based on the three-dimensional finite-difference time-domain technique and the Maxwell stress tensor method. Our design may provide an alternative way to construct nano-optical conveyor belt with which target molecules can be delivered between trapping sites, thus enabling many on-chip optofluidic applications.

© 2014 Optical Society of America

OCIS Codes
(230.1150) Optical devices : All-optical devices
(240.6680) Optics at surfaces : Surface plasmons
(350.4855) Other areas of optics : Optical tweezers or optical manipulation
(310.6628) Thin films : Subwavelength structures, nanostructures

ToC Category:

Original Manuscript: July 22, 2014
Manuscript Accepted: July 24, 2014
Published: August 6, 2014

Virtual Issues
Vol. 9, Iss. 10 Virtual Journal for Biomedical Optics

Zhiwen Kang, Haifei Lu, Jiajie Chen, Kun Chen, Fang Xu, and Ho-Pui Ho, "Plasmonic graded nano-disks as nano-optical conveyor belt," Opt. Express 22, 19567-19572 (2014)

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