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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 3 — Jan. 20, 2011
  • pp: 318–322

Microlens-array-enabled on-chip optical trapping and sorting

Xing Zhao, Yuyang Sun, Jing Bu, Siwei Zhu, and X.-C. Yuan  »View Author Affiliations

Applied Optics, Vol. 50, Issue 3, pp. 318-322 (2011)

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An on-chip optical trapping and sorting system composed of a microchamber and a microlens array (MLA) is demonstrated. The MLA focuses the incident light into multiple confocal spots to trap the particles within the microchamber. The SiO 2 / ZrO 2 solgel material is introduced in the fabrication of MLA for its unique optical and chemical characters. Moreover, in order to prove the effectiveness of the system, experimental demonstration of multibeam trapping and locked-in transport of micropolymer particles in the microchamber is implemented. The system may easily be integrated as microfluidic devices, offering a simple and efficient solution for optical trapping and sorting of biological particles in lab-on-a-chip technologies.

© 2011 Optical Society of America

OCIS Codes
(140.7010) Lasers and laser optics : Laser trapping
(160.6060) Materials : Solgel
(170.4520) Medical optics and biotechnology : Optical confinement and manipulation
(220.4000) Optical design and fabrication : Microstructure fabrication
(230.3120) Optical devices : Integrated optics devices
(350.4855) Other areas of optics : Optical tweezers or optical manipulation

ToC Category:
Optical Design and Fabrication

Original Manuscript: September 20, 2010
Revised Manuscript: November 9, 2010
Manuscript Accepted: December 5, 2010
Published: January 14, 2011

Virtual Issues
Vol. 6, Iss. 2 Virtual Journal for Biomedical Optics

Xing Zhao, Yuyang Sun, Jing Bu, Siwei Zhu, and X.-C. Yuan, "Microlens-array-enabled on-chip optical trapping and sorting," Appl. Opt. 50, 318-322 (2011)

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