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Optical trapping of nanotubes with cylindrical vector beams |
Optics Letters, Vol. 37, Issue 16, pp. 3381-3383 (2012)
http://dx.doi.org/10.1364/OL.37.003381
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Abstract
We use laser beams with radial and azimuthal polarization to optically trap carbon nanotubes. We measure force constants and trap parameters as a function of power showing improved axial trapping efficiency with respect to linearly polarized beams. The analysis of the thermal fluctuations highlights a significant change in the optical trapping potential when using cylindrical vector beams. This enables the use of polarization states to shape optical traps according to the particle geometry, as well as paving the way to nanoprobe-based photonic force microscopy with increased performance compared to a standard linearly polarized configuration.
© 2012 Optical Society of America
OCIS Codes
(140.7010) Lasers and laser optics : Laser trapping
(350.4855) Other areas of optics : Optical tweezers or optical manipulation
ToC Category:
Optical Tweezers or Optical Manipulation
History
Original Manuscript: June 12, 2012
Revised Manuscript: July 4, 2012
Manuscript Accepted: July 4, 2012
Published: August 8, 2012
Virtual Issues
Vol. 7, Iss. 10 Virtual Journal for Biomedical Optics
Citation
M. G. Donato, S. Vasi, R. Sayed, P. H. Jones, F. Bonaccorso, A. C. Ferrari, P. G. Gucciardi, and O. M. Maragò, "Optical trapping of nanotubes with cylindrical vector beams," Opt. Lett. 37, 3381-3383 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-16-3381
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