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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 24 — Nov. 23, 2009
  • pp: 21680–21690

Multiple traps created with an inclined dual-fiber system

Yuxiang Liu and Miao Yu  »View Author Affiliations

Optics Express, Vol. 17, Issue 24, pp. 21680-21690 (2009)

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Multiple optical traps allow one to manipulate multiple particles simultaneously, to characterize interactions in colloidal systems, and to assemble particles into complex structures. Most of the current multiple optical traps are realized with microscope objective-based optical tweezers, which are bulky in size. In this article, we created multiple optical traps with an inclined dual-fiber optical tweezers setup. One 3D trap and two 2D traps were formed at different vertical levels with adjustable separations and positions. We demonstrated that this fiber-based trapping system can be used as a simple block to perform multiple functions, such as particle grouping, separation, and stacking. Moreover, we found that multiple beads can be trapped and stacked up in three dimensions. Compared with those formed with objective-based optical tweezers, the multiple traps presented here are small in size and independent of the objective or the substrate, and hence hold the promise to be integrated in microfluidic systems. This fiber-based multiple traps can be used for on-chip parallel manipulation, particle separation, and characterization of interactions of colloidal and biological systems.

© 2009 OSA

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(350.4855) Other areas of optics : Optical tweezers or optical manipulation

ToC Category:
Optical Trapping and Manipulation

Original Manuscript: September 4, 2009
Revised Manuscript: November 1, 2009
Manuscript Accepted: November 2, 2009
Published: November 11, 2009

Virtual Issues
Vol. 4, Iss. 13 Virtual Journal for Biomedical Optics

Yuxiang Liu and Miao Yu, "Multiple traps created with an inclined dual-fiber system," Opt. Express 17, 21680-21690 (2009)

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