Study on optical hierarchical sorting of particles based on the Fraunhofer diffraction field of spiral phase plate array

Wang, Kaimin; Shi, Bingguo; Dai, Bo; Zhang, Leihong; Han, Zhaoxia; Xu, Xiaoyang; Xu, Min; Xin, Xiangjun; Zhang, Dawei

doi:10.1117/1.oe.59.11.115104

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2022

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“…The visible or invisible 'tweezers' can apply an operation on particles, and the operation is mild, non-destructive, and precise. Based on the above advantages, optical tweezer and optical tweezer array attract much attention from scientists and engineers, especially in the following areas [6][7][8][9][10][11]: cell biology, single molecular biology, colloid science, and physics, etc. The generation method of optical vortex (OV) has been studied relatively early and has been constantly improving in recent years.…”

Section: Introductionmentioning

confidence: 99%

A particle sorting scheme based on an optical vortex array

Xu¹,

Shuai²,

Wang³

et al. 2022

Laser Phys.

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In recent years, the research and application of optical tweezers and their corresponding particle sorting has been constantly improving, and the application field is becoming more and more extensive. However, there are few reports regarding the theoretical and simulation study of particle sorting via optical vortex (OV). In this paper, we proposed an OV array (OVA) based particle sorting scheme. In this scheme, we utilized an OVA to act on the chamber filled with particle solution, and the key to successful particle sorting lies in different trapping capability among different row/column of OVA. The proposed scheme can provide a theoretical and simulation reference for practical experimental study and applications.

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