Rotational control within optical tweezers by use of a rotating aperture
Optics Letters, Vol. 27, Issue 9, pp. 743-745 (2002)
http://dx.doi.org/10.1364/OL.27.000743
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Abstract
We demonstrate a simplified method of rotational control of objects trapped within optical tweezers that does not require high-order modes, interferometric precision, or computer-controlled optical modulators. Inserting a rectangular aperture into the optical beam results in a focused spot that also has rectangular symmetry. We show that an asymmetric object trapped in the beam has its angular orientation fixed such that rotation of the aperture results in a direct rotation of the particle.
© 2002 Optical Society of America
[Optical Society of America ]
OCIS Codes
(140.7010) Lasers and laser optics : Laser trapping
(350.0350) Other areas of optics : Other areas of optics
Citation
Anna T. O'Neil and Miles J. Padgett, "Rotational control within optical tweezers by use of a rotating aperture," Opt. Lett. 27, 743-745 (2002)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-27-9-743
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