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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 22 — Aug. 1, 2012
  • pp: 5522–5526

Force mapping of an optical trap using an acousto-optical deflector in a time-sharing regime

Ignacio A. Martínez and Dmitri Petrov  »View Author Affiliations

Applied Optics, Vol. 51, Issue 22, pp. 5522-5526 (2012)

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We suggest and study experimentally a time-sharing protocol for acousto-optical deflectors (AODs) that permits one to map the radial optical trapping force of optical tweezers without using a controllable flux control or an additional beam. Variations of the trapping potential due to modifications of the optical system are easily detected in terms of the force map. The protocol can be used in optical tweezers that already include an AOD without adding new elements in the existing optical system.

© 2012 Optical Society of America

OCIS Codes
(120.5800) Instrumentation, measurement, and metrology : Scanners
(290.5820) Scattering : Scattering measurements
(350.4855) Other areas of optics : Optical tweezers or optical manipulation

ToC Category:
Optical Tweezers or Optical Manipulation

Original Manuscript: April 23, 2012
Revised Manuscript: June 17, 2012
Manuscript Accepted: June 28, 2012
Published: July 30, 2012

Virtual Issues
Vol. 7, Iss. 10 Virtual Journal for Biomedical Optics

Ignacio A. Martínez and Dmitri Petrov, "Force mapping of an optical trap using an acousto-optical deflector in a time-sharing regime," Appl. Opt. 51, 5522-5526 (2012)

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