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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 22 — Nov. 15, 2006
  • pp: 3375–3377

Size tunable three-dimensional annular laser trap based on axicons

Bing Shao, Sadik C. Esener, Jaclyn M. Nascimento, Michael W. Berns, Elliot L. Botvinick, and Mihrimah Ozkan  »View Author Affiliations

Optics Letters, Vol. 31, Issue 22, pp. 3375-3377 (2006)

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A three-dimensional (3D) ring-shaped laser trap has been built using axicons. The diameter of this laser trap ranges from 70 to 140 μ m and is adjusted by simply changing the position of one axicon in the optical path. Parallel 3D trapping of 5 μ m silica microspheres and 3D confinement of cells along the ring are demonstrated. In this system the special optical properties of axicons are used to create a continuous annular trap with high power efficiency and a constant numerical aperture. This new approach, without any mechanical scanning, offers significant potential for applications in cell motility analysis and biotropism studies.

© 2006 Optical Society of America

OCIS Codes
(140.7010) Lasers and laser optics : Laser trapping
(170.4520) Medical optics and biotechnology : Optical confinement and manipulation
(220.4830) Optical design and fabrication : Systems design

ToC Category:
Optical Trapping

Original Manuscript: July 11, 2006
Revised Manuscript: August 16, 2006
Manuscript Accepted: September 5, 2006
Published: October 26, 2006

Virtual Issues
Vol. 1, Iss. 12 Virtual Journal for Biomedical Optics

Bing Shao, Sadik C. Esener, Jaclyn M. Nascimento, Michael W. Berns, Elliot L. Botvinick, and Mihrimah Ozkan, "Size tunable three-dimensional annular laser trap based on axicons," Opt. Lett. 31, 3375-3377 (2006)

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