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Proceedings Paper

Theoretical analysis on particle manipulation of the optical tweezers arrays system
Author(s): Qin Li; Wanli Feng; Chu Wang; Qun Cao; Xiaoming Hu; Dingguo Sha; Jiaming Lin; Dejun Zhu
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Paper Abstract

In biological scientific research, separating biological macromolecules or cells in liquid is always a challenging job. Optical tweezers have been a valuable research tool since their invention in the 1980s. One of the most important developments in optical tweezers in recent years has been the creation of two-dimensional arrays of optical traps. In this paper, a method based on interference is discussed to form the gradient laser fields, which may cause spatial modulation of the concentration of particles. The parameters related with the optical tweezers array are discussed in detail and simulated by Matlab software to show the impact factor of the important parameters for the concentration distribution of the particles. The spatial redistribution of particles in a laser interference field could be also predicted according the theoretical analysis.

Paper Details

Date Published: 1 May 2007
PDF: 9 pages
Proc. SPIE 6534, Fifth International Conference on Photonics and Imaging in Biology and Medicine, 653415 (1 May 2007); doi: 10.1117/12.741477
Show Author Affiliations
Qin Li, Beijing Institute of Technology (China)
Wanli Feng, Beijing Institute of Technology (China)
Chu Wang, Beijing Institute of Technology (China)
Qun Cao, Beijing Institute of Technology (China)
Xiaoming Hu, Beijing Institute of Technology (China)
Dingguo Sha, Beijing Institute of Technology (China)
Jiaming Lin, Beijing Institute of Technology (China)
Dejun Zhu, Beijing Institute of Technology (China)

Published in SPIE Proceedings Vol. 6534:
Fifth International Conference on Photonics and Imaging in Biology and Medicine

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