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Particle manipulation with twisted circle Pearcey vortex beams

Yongzheng Yang, You Wu, Xinqing Zheng, Jingyi Shi, Yingjun Luo, Jinghuan Huang, and Dongmei Deng

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Abstract

In this Letter, we present an approach for particle manipulation utilizing twisted circle Pearcey vortex beams. These beams are modulated by a noncanonical spiral phase, which allows for flexible adjustment of rotation characteristics and spiral patterns. Consequently, particles can be rotated around the beam’s axis and trapped with a protective barrier to avoid perturbation. Our proposed system can quickly de-gather and re-gather multiple particles, enabling a swift and thorough cleaning of small areas. This innovation opens up new possibilities in particle cleaning and creates a new platform for further study.

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Supplementary Material (4)

NameDescription
Supplement 1       Details in experiment.
Visualization 1       Demonstration of stable trapping and protective barrier. The white circles represent the particles that are stably trapped by inner light spots, while the white squares are used as reference points for the trapped particles when the sample is moved i
Visualization 2       Demonstration of particle rotation.
Visualization 3       Demonstration of de-gathered and re-gathered particles for particle cleaning. The trapped and gathered particles are represented by white circles, while the cleaning area is marked by a red dashed circle.

Data availability

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

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Equations (4)

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