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Proceedings Paper

Mapping two-dimension trapping potential of nanoparticles in an optical trap
Author(s): Jinxin Fu; Yi Hu; Liangcheng Zhou; Min Yao Lim; Melissa Goleb; Qiwen Zhan; H. Daniel Ou-Yang
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Paper Abstract

Combining confocal microscopy and optical tweezers, we map out the spatial distribution of the particle concentrations of quantum dots, fluorescent HIV pseudo virus particles and polystyrene nanospheres in an optical trap. By analyzing the Boltzmann distribution of local particle concentrations, we obtain the two-dimension single particle trapping potential profile at the center of the optical trap in the direction perpendicular to the beam propagation. We compare the trapping potential energies of pseudo HIV vesicles and same-sized polystyrene spheres. We also compare the trapping potential energy of polystyrene spheres of a focused Gaussian beam and two modes of cylindrical vector beams.

Paper Details

Date Published: 7 June 2013
PDF: 5 pages
Proc. SPIE 8883, ICPS 2013: International Conference on Photonics Solutions, 88830J (7 June 2013); doi: 10.1117/12.2027057
Show Author Affiliations
Jinxin Fu, Lehigh Univ. (United States)
Yi Hu, Lehigh Univ. (United States)
Liangcheng Zhou, Lehigh Univ. (United States)
Min Yao Lim, Lehigh Univ. (United States)
Melissa Goleb, Lehigh Univ. (United States)
Qiwen Zhan, Univ. of Dayton (United States)
H. Daniel Ou-Yang, Lehigh Univ. (United States)

Published in SPIE Proceedings Vol. 8883:
ICPS 2013: International Conference on Photonics Solutions
Prathan Buranasiri; Sarun Sumriddetchkajorn, Editor(s)

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