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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 8 — Apr. 15, 2013
  • pp: 1244–1246

Calibration of nonspherical particles in optical tweezers using only position measurement

Ann A. M. Bui, Alexander B. Stilgoe, Timo A. Nieminen, and Halina Rubinsztein-Dunlop  »View Author Affiliations

Optics Letters, Vol. 38, Issue 8, pp. 1244-1246 (2013)

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Nonspherical probe particles are an attractive choice for optically-trapped scanning probe microscopy. We show that it is possible to calibrate a trap with a nonspherical particle using only position measurements, without requiring measurement of orientation, using a pseudopotential based on the position occupation probability. It is not necessary to assume the force is linear with displacement.

© 2013 Optical Society of America

OCIS Codes
(170.5810) Medical optics and biotechnology : Scanning microscopy
(350.4855) Other areas of optics : Optical tweezers or optical manipulation

ToC Category:
Medical Optics and Biotechnology

Original Manuscript: January 25, 2013
Revised Manuscript: March 7, 2013
Manuscript Accepted: March 7, 2013
Published: April 3, 2013

Virtual Issues
Vol. 8, Iss. 5 Virtual Journal for Biomedical Optics

Ann A. M. Bui, Alexander B. Stilgoe, Timo A. Nieminen, and Halina Rubinsztein-Dunlop, "Calibration of nonspherical particles in optical tweezers using only position measurement," Opt. Lett. 38, 1244-1246 (2013)

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