An approach for improving the distorted structured light in holographic optical tweezers

TL;DR

This paper analyzes the distortion issues in holographic optical tweezers, providing theoretical, numerical, and experimental insights, and proposes an effective correction method to enhance optical manipulation performance.

Contribution

It introduces a novel approach to reduce structured light distortion in holographic optical tweezers, improving their accuracy and effectiveness.

Findings

Simulation results match experimental measurements

The proposed correction significantly reduces light distortion

Enhanced optical manipulation capabilities achieved

Abstract

Optical tweezers have been widely used for optical manipulation of various particles. At present, there are different type of optical tweezers. Among them, holographic optical tweezers have attracted growing attention as a powerful tools for optical trapping, optical transportation and optical sorting in many fields, due to its excellent properties including great flexibility and high convenience. Experimentally, however, the structured light has been easily distorted, which would lead to serious degradation of optical manipulation performance. In this work, the distortion of structured light is theoretically analyzed. In the following, the distortion of structured light are numerically simulated and experimentally measured. It shows that the simulated results are in consistent with the experimental ones. Then, an approach for decreasing its optical distortion is proposed, and the results reveal that the distortion of structured light can be effectively corrected. Accordingly, our study provides a way for improving the distorted structured light, which is useful for optically manipulating various particles in optical tweezers.