Metallic particle manipulation with adjustable trapping range through customized field

Journal article (2020)

Authors

Zhidong Bai Shandong University of Technology
Shuoshuo Zhang Shandong University of Technology
Yudong Lyu Shandong University of Technology
Rui Zhao Shandong University of Technology
Xifu Yue Shandong University of Technology
Xiaolu Ge Shandong University of Technology
Shenggui Fu Shandong University of Technology
Z. Man ImPhys/Optics - AS , Shandong University of Technology, Shandong Normal University
Research Group
ImPhys/Optics (AS) (TU Delft)
Nanoparticles Optical tweezers Optical trapping Trapping range
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Published Date

2020

Language

English

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Faculty

Applied Sciences

Department

ImPhys/Imaging Physics

Research Group

ImPhys/Optics

Abstract

Since the invention of optical tweezers, optical manipulation has advanced significantly in many applications, including atomic physics, biochemistry and soft matter physics. Here, we propose a method to trap metallic particles with adjustable trapping range in the transverse plane with the help of customized field. By tailoring the polarization state of the incident field, the focal field with elongation in the direction perpendicular to optical axis can be turned in the 4π focusing system. As a result, optical trapping with tunable trapping range is possible when the metallic particle is interacted with such customized field.