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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 7 — Apr. 7, 2014
  • pp: 7953–7961

Mechanical analysis of the optical tweezers in time-sharing regime

Lingyao Yu and Yunlong Sheng  »View Author Affiliations


Optics Express, Vol. 22, Issue 7, pp. 7953-7961 (2014)
http://dx.doi.org/10.1364/OE.22.007953


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Abstract

Time-sharing optical tweezers is a versatile technique to realize multiple traps for manipulating biological cells and macromolecules. It has been based on an intuitive hypothesis that the trapped viscoelastic object does not “sense” blinking of the optical beam. We present a quantitative analysis using mechanical modeling and numerical simulation, showing that the local stress and strain are jumping all the time and at all locations with the jumping amplitude independent of the recovery time of the viscoelastic material and the jumping frequency. Effects of the stress and strain jumping on the object deformation and the internal energy dissipation are analyzed.

© 2014 Optical Society of America

OCIS Codes
(160.1435) Materials : Biomaterials
(350.4855) Other areas of optics : Optical tweezers or optical manipulation

ToC Category:
Optical Trapping and Manipulation

History
Original Manuscript: December 19, 2013
Revised Manuscript: March 9, 2014
Manuscript Accepted: March 21, 2014
Published: March 28, 2014

Virtual Issues
Vol. 9, Iss. 6 Virtual Journal for Biomedical Optics

Citation
Lingyao Yu and Yunlong Sheng, "Mechanical analysis of the optical tweezers in time-sharing regime," Opt. Express 22, 7953-7961 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-7-7953


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