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Cycloid-structured optical tweezers

Wenjun Wei, Liuhao Zhu, Yuping Tai, and Xinzhong Li

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Abstract

We designed novel cycloid-structured optical tweezers based on a modified cycloid and holographic shaping techniques. The optical tweezers realize all the dynamic characteristics of the trapped particles, including start, stop, and variable-velocity motions along versatile trajectories. The superiority of the tweezers is experimentally verified using polystyrene micro-sphere manipulation. This work provides a novel platform for more complex manipulations of particles.

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Supplementary Material (5)

NameDescription
Visualization 1       The particle’s motion gradually slows down with an increase in curvature n. Finally, it stops at the cusp when the curvature increases to 0.6.
Visualization 2       The particle was properly confined and propelled along the trajectory of the COVBs and its velocity increased gradually with an increase in m2.
Visualization 3       Particle manipulation via deltoid COVBs
Visualization 4       Particle manipulation via gourd COVBs
Visualization 5       Particle manipulation via spiral COVBs

Data availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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Figures (6)

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Equations (7)

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