Theoretical calculation of light-induced forces and torques on complex microrotors

Yuxiang Liu; Anding Zhu; Wenhao Huang

doi:10.1117/12.575262

30 December 2004 Theoretical calculation of light-induced forces and torques on complex microrotors

Yuxiang Liu, Anding Zhu, Wenhao Huang

Proceedings Volume 5641, MEMS/MOEMS Technologies and Applications II; (2004) https://doi.org/10.1117/12.575262
Event: Photonics Asia, 2004, Beijing, China

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.

Citation Download Citation

Yuxiang Liu, Anding Zhu, and Wenhao Huang "Theoretical calculation of light-induced forces and torques on complex microrotors", Proc. SPIE 5641, MEMS/MOEMS Technologies and Applications II, (30 December 2004); https://doi.org/10.1117/12.575262

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