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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 36, Iss. 3 — Feb. 1, 2011
  • pp: 424–426

All-optical controllable trapping and transport of subwavelength particles on a tapered photonic crystal waveguide

Pin-Tso Lin and Po-Tsung Lee  »View Author Affiliations


Optics Letters, Vol. 36, Issue 3, pp. 424-426 (2011)
http://dx.doi.org/10.1364/OL.36.000424


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Abstract

We propose that a tapered photonic crystal waveguide design can unify optical trapping and transport functionalities to advance the controllability of optical manipulation. Subwavelength particles can be trapped by a resonance-enhanced field and transported to a specified position along the waveguide on demand by varying the input wavelength. A simulated transport ability as high as 148 (transport distance/wavelength variation) is obtained by the waveguide with 0.1 ° tilted angle. Stable trapping of a 50 nm polystyrene particle can be achieved with input power of 7 mW . We anticipate that this design would be beneficial for future life science research and optomech anical applications.

© 2011 Optical Society of America

OCIS Codes
(350.4238) Other areas of optics : Nanophotonics and photonic crystals
(350.4855) Other areas of optics : Optical tweezers or optical manipulation

ToC Category:
Nanophotonics

History
Original Manuscript: October 13, 2010
Revised Manuscript: January 4, 2011
Manuscript Accepted: January 7, 2011
Published: February 1, 2011

Virtual Issues
Vol. 6, Iss. 3 Virtual Journal for Biomedical Optics

Citation
Pin-Tso Lin and Po-Tsung Lee, "All-optical controllable trapping and transport of subwavelength particles on a tapered photonic crystal waveguide," Opt. Lett. 36, 424-426 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-3-424


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