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Proceedings Paper

Theoretical calculation of light-induced forces and torques on complex microrotors
Author(s): Yuxiang Liu; Anding Zhu; Wenhao Huang
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Paper Abstract

In this letter, we propose the new theoretical investigation on the optical forces and torques on complex microrotors. On the basis of R. C. Gauthier’s hybrid ray-wave model, the optical forces and toques on two complex asymmetric micro-objects, the conical microrotor and the helical microrotor, are analyzed. The viscous drag torque is estimated by Stokes flow to obtain the rotational speed. The results of our computation agree well with the previously published experimental results, which indicates that our approach of the optical torque calculation is suitable for other complex microrotors and that the theoretical calculation is very helpful to optimum design of light-driven microrotors.

Paper Details

Date Published: 30 December 2004
PDF: 9 pages
Proc. SPIE 5641, MEMS/MOEMS Technologies and Applications II, (30 December 2004); doi: 10.1117/12.575262
Show Author Affiliations
Yuxiang Liu, Univ. of Science and Technology of China (China)
Anding Zhu, Univ. of Science and Technology of China (China)
Wenhao Huang, Univ. of Science and Technology of China (China)


Published in SPIE Proceedings Vol. 5641:
MEMS/MOEMS Technologies and Applications II
Zhichun Ma; Guofan Jin; Xuyuan Chen, Editor(s)

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