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Applied Optics

Applied Optics


  • Vol. 44, Iss. 19 — Jul. 1, 2005
  • pp: 3963–3968

Dynamics of multiple trapping by a single-beam laser tweezer

Daniel S. Kaputa, Andrey N. Kuzmin, Aliaksandr V. Kachynski, Alexander N. Cartwright, and Paras N. Prasad  »View Author Affiliations

Applied Optics, Vol. 44, Issue 19, pp. 3963-3968 (2005)

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A multiple-trap single-beam scanning laser tweezer system was developed and characterized. Different stationary and mobile multiple-trap modes were generated for polystyrene beads in a water environment. Trapping efficiency and stability were investigated for several dynamic parameters such as transition time between the sites, waiting time on a single site, number of trapping sites, and IR laser power. Optimal parameters for efficient generation of complex arrays and matrices were determined. We demonstrate an example of a single laser beam multiple-trap application by measuring the trap’s stiffness in water for our laser tweezer setup.

© 2005 Optical Society of America

OCIS Codes
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(140.7010) Lasers and laser optics : Laser trapping

Original Manuscript: September 22, 2004
Revised Manuscript: January 26, 2005
Manuscript Accepted: January 31, 2005
Published: July 1, 2005

Daniel S. Kaputa, Andrey N. Kuzmin, Aliaksandr V. Kachynski, Alexander N. Cartwright, and Paras N. Prasad, "Dynamics of multiple trapping by a single-beam laser tweezer," Appl. Opt. 44, 3963-3968 (2005)

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