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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editor: Gregory W. Faris
  • Vol. 5, Iss. 7 — Apr. 26, 2010

Polarization gradient: exploring an original route for optical trapping and manipulation

Gabriella Cipparrone, Ibis Ricardez-Vargas, Pasquale Pagliusi, and Clementina Provenzano  »View Author Affiliations

Optics Express, Vol. 18, Issue 6, pp. 6008-6013 (2010)

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We report a study of the capabilities of an optical tweezer based on polarization gradient. We use a light polarization pattern that is able to simultaneously exert forces and torques in opposite directions depending on the particle’s position. It allows to perform oscillatory displacements and control the sense of rotation of several particles inside a uniformly illuminated region. Unconventional trapping of spinning particles in circularly polarized fringes has been observed, which suggests the involvement of hydrodynamic forces.

© 2010 OSA

OCIS Codes
(090.2880) Holography : Holographic interferometry
(160.3710) Materials : Liquid crystals
(350.4855) Other areas of optics : Optical tweezers or optical manipulation

ToC Category:
Optical Trapping and Manipulation

Original Manuscript: November 2, 2009
Revised Manuscript: December 10, 2009
Manuscript Accepted: February 7, 2010
Published: March 11, 2010

Virtual Issues
Vol. 5, Iss. 7 Virtual Journal for Biomedical Optics

Gabriella Cipparrone, Ibis Ricardez-Vargas, Pasquale Pagliusi, and Clementina Provenzano, "Polarization gradient: exploring an original route for optical trapping and manipulation," Opt. Express 18, 6008-6013 (2010)

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