Optimal analysis of thickness of crystal particles based on optical drive motor

WEI Yong; ZHU Yanying; XIAO Changjiang

doi:10.7510/jgjs.issn.1001-3806.2015.02.010

In order to improve the rotational frequency of a CaCO3 crystal rotor, based on optical rotation caused by the transfer of spin angular momentum from the laser beam to birefringence crystal particles, an experimental system of optical tweezers was designed and further improved with the circular polarized light beam. The relation between the rotation frequency of a calcium carbonate rotor and the thickness was simulated under different laser power. The rotation frequency of the calcium carbonate rotor with different thickness was measured in the experiment. The primary affecting factors of rotation frequency, such as thickness, radius, and orientation of the optic axis were analyzed. The results show that experimental curve of rotation frequency and thickness is periodic cosine function meanwhile the rotation frequency of the crystal rotor is proportional to the effective power. The maximum frequency of the crystal rotor can reach 8.9Hz in the experiment when effective power is 10mW, which is consistent with the theoretical simulation result. The conclusion supply the theoretical basis and technological guarantee for the classification of living biological cells, the study on properties of micro-mechanical rotor in the microscopic fields.

Optimal analysis of thickness of crystal particles based on optical drive motor

1. College of Liren, Yanshan University, Qinhuangdao 066004, China;

2. College of Science, Yanshan University, Qinhuangdao 066004, China

Received Date: 2014-05-27

Accepted Date: 2014-06-13

Available Online: 2015-03-25

Abstract: In order to improve the rotational frequency of a CaCO3 crystal rotor, based on optical rotation caused by the transfer of spin angular momentum from the laser beam to birefringence crystal particles, an experimental system of optical tweezers was designed and further improved with the circular polarized light beam. The relation between the rotation frequency of a calcium carbonate rotor and the thickness was simulated under different laser power. The rotation frequency of the calcium carbonate rotor with different thickness was measured in the experiment. The primary affecting factors of rotation frequency, such as thickness, radius, and orientation of the optic axis were analyzed. The results show that experimental curve of rotation frequency and thickness is periodic cosine function meanwhile the rotation frequency of the crystal rotor is proportional to the effective power. The maximum frequency of the crystal rotor can reach 8.9Hz in the experiment when effective power is 10mW, which is consistent with the theoretical simulation result. The conclusion supply the theoretical basis and technological guarantee for the classification of living biological cells, the study on properties of micro-mechanical rotor in the microscopic fields.

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Reference (13)

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Optimal analysis of thickness of crystal particles based on optical drive motor

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