华东师范大学学报（自然科学版）Issue(3)：61-71,11.DOI:10.3969/j.issn.1000-5641.2025.03.008
基于空间光调制器的可移动光镊的产生及其在粒子囚禁中的应用
Spatial light modulator-based movable optical tweezer generated for particle trapping applications
摘要
Abstract
Optical tweezers provide an effective non-contact and non-damaging method for precise manipulation of microscopic particles,which is of great significance in the development and application of optical micromanipulation technology.In this paper,a scheme is proposed for generating a one-dimensional movable optical potential trap(optical tweezers)using a spatial light modulator,thereby demonstrating it and discussing its application in particle trapping.The phase holograms of the two beams loaded on a space light modulator were dynamically tuned continuously to produce focused Gaussian and vortex hollow beams.The propagation characteristics of the two kinds of beams in free space,the relationship to the maximum intensity of the beam,size of the spot,and focal length were further studied.The optical potential,gradient force,and scattering force of particles in focused Gaussian and vortex hollow optical tweezers were calculated.The feasibility of constructing tunable one-dimensional moving optical tweezers is further discussed.This scheme has important application prospects in laser trapping and manipulation of microscopic particles.关键词
光镊/高斯光束/涡旋空心光束/空间光调制器/粒子囚禁Key words
optical tweezers/Gaussian beam/vortex hollow beam/spatial light modulator/particle trapping分类
物理学引用本文复制引用
孔晨莹,周婧雯,汤继鸿,郭超修,尹亚玲..基于空间光调制器的可移动光镊的产生及其在粒子囚禁中的应用[J].华东师范大学学报（自然科学版）,2025,(3):61-71,11.基金项目
国家自然科学基金(12174115) （12174115）
