摘要
为了探究涡旋光束对酵母菌细胞的操纵技术,基于计算全息技术,在实验中实现了涡旋光束的生成。发现涡旋光束光环半径随拓扑荷值线性增大。力场分析表明涡旋光束的梯度力确保粒子被捕获在光环上,轨道角动量实现粒子的旋转。最后,进一步实现了涡旋光束对酵母菌细胞的微操纵实验,发现酵母菌细胞捕获规律符合上述理论分析,且随着拓扑荷值增大,酵母菌细胞平均速度增加。该结果为涡旋光束光操纵在生物光子学中的应用提供了实验支撑。
In order to explore the manipulation technique of yeast cells by vortex beams,this paper based on computational holography technology,the generation of vortex beam is realized in the experiment.It is found that the radius of vortex beam increases linearly with topological charge value.Through the force field analysis,it is found that the particles are captured on the halo with the gradient force of the vortex beam,and the orbital angular momentum realizes the rotation of the particles.Finally,the micro-manipulation experiment of vortex beam on yeast cells is further realized.It is found that the yeast cell capture law accorded with the above theoretical analysis,and the yeast cell average speed increased with the increase of topological charge.This result provides experimental support for the application of vortex beam light manipulation in biophotonics.
作者
李懋
高文禹
马鑫
郭亚帅
刘悦
朱爽
陈德禄
李新忠
LI Mao;GAO Wenyu;MA Xin;GUYashuai;LIU Yue;ZHU Shuang;CHEN Delu;LI Xinzhong(School of physics and Engineering,Henan University of Science and Technology,Luoyang Henan 471023,China;Henan Key Laboratory of Electromagnetic Transformation and Detection,Luoyang Normal University,Luoyang Henan 471934,China)
出处
《激光杂志》
北大核心
2019年第12期35-38,共4页
Laser Journal
基金
国家自然科学基金(No.61775052)
河南科技大学实验技术开发基金项目(No.SY1819014)
河南科技大学大学生研究训练计划(SRTP)基金项目(No.201810464035)
关键词
光镊
涡旋光束
计算全息
光扳手
optical tweezers
vortex beam
computational holography
optical wrench
