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Proceedings Paper

Transverse optical trapping of spherical particle with strong absorption in a focused Gaussian beam
Author(s): Yanfeng Zhang; Yudong Li; Guoxin Cui; Hongbing Liu; Jing Chen; Jingjun Xu; Qian Sun
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Paper Abstract

In this work, the transverse optical trapping of spherical particle with strong absorption is studied in geometrical optics model by numerical simulation. In our work, the exact expressions of wave vector are used instead of traditional approximate expressions, and the transverse optical trapping force acting on a spherical particle due to strong absorption is calculated when the particle is illuminated by a focused Gaussian beam of TEM00 mode. The calculated results show that stable transverse optical trapping positions only exist when the center of the spherical particle is located in front of the focus of the beam. Our results also reveal that the trapping positions are decided by the radius of the beam waist ω0. The magnitude of transverse optical trapping force and the stiffness of optical trapping decrease with the increase in ω0.

Paper Details

Date Published: 4 January 2008
PDF: 8 pages
Proc. SPIE 6832, Holography and Diffractive Optics III, 68320K (4 January 2008); doi: 10.1117/12.755516
Show Author Affiliations
Yanfeng Zhang, Nankai Univ. (China)
Yudong Li, Nankai Univ. (China)
Guoxin Cui, Nankai Univ. (China)
Hongbing Liu, Nankai Univ. (China)
Jing Chen, Nankai Univ. (China)
Jingjun Xu, Nankai Univ. (China)
Qian Sun, Nankai Univ. (China)

Published in SPIE Proceedings Vol. 6832:
Holography and Diffractive Optics III
Yunlong Sheng; Dahsiung Hsu; Chongxiu Yu, Editor(s)

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