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Ensemble method to measure the potential energy of nanoparticles in an optical trap |
Optics Letters, Vol. 36, Issue 8, pp. 1497-1499 (2011)
http://dx.doi.org/10.1364/OL.36.001497
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Abstract
A method is described for measuring the potential energy of nanoparticles in an optical trap by trapping an ensemble of particles with a focused laser beam. The force balance between repulsive osmotic and confining gradient-force pressures determines the single-particle trapping potential independent of interactions between the particles. The ensemble nature of the measurement permits evaluation of single-particle trapping energies much smaller than
© 2011 Optical Society of America
OCIS Codes
(350.4990) Other areas of optics : Particles
(350.4855) Other areas of optics : Optical tweezers or optical manipulation
ToC Category:
Optical Tweezers or Optical Manipulation
History
Original Manuscript: November 9, 2010
Revised Manuscript: March 4, 2011
Manuscript Accepted: March 5, 2011
Published: April 15, 2011
Virtual Issues
Vol. 6, Iss. 5 Virtual Journal for Biomedical Optics
Citation
Joseph Junio, Jack Ng, Joel A. Cohen, Zhifang Lin, and H. Daniel Ou-Yang, "Ensemble method to measure the potential energy of nanoparticles in an optical trap," Opt. Lett. 36, 1497-1499 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-8-1497
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