多平面波干涉的光学涡旋晶格特性研究  

Properties of Optical Vortex Lattice Generated via Multiple Plane Wave Interference

作　　者：秦雪云 朱刘昊 台玉萍[3] 汤洁[2] 李新忠 Qin Xueyun;Zhu Liuhao;Tai Yuping;Tang Jie;Li Xinzhong(School of Physics and Engineering,Henan University of Science and Technology,Luoyang,Henan 471023,China;State Key Laboratory of Transient Optics and Photonics,Xi'an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences,Xi'an,Shaanxi 710119,China;School of Chemical Engineering and Pharmaceutics,Henan University of Science and Technology,Luoyang,Henan 471023,China)

机构地区：[1]河南科技大学物理工程学院,河南洛阳471023 [2]中国科学院西安光学精密机械研究所瞬态光学与光子技术国家重点实验室,陕西西安710119 [3]河南科技大学化工与制药学院,河南洛阳471023

出　　处：《光学学报》2021年第21期185-192,共8页Acta Optica Sinica

基　　金：国家自然科学基金(11974102);瞬态光学与光子技术国家重点实验室开放基金(SKLST201901);河南省高等学校重点科研项目(21zx002)。

摘　　要：多平面波干涉(MPWI)是产生光学涡旋晶格(OVL)的一种经典方式。通过定义波矢空间坐标系,提出了一种基于MPWI的OVL调控方法,模拟生成了四个平面波和五个平面波干涉产生的OVL,计算了其梯度力和能流分布,分析了其在微粒操纵领域中的应用。然后,通过调控其部分波矢大小和旋转波矢角度,得到了更加丰富灵活的光场分布。最终,通过分析其梯度力和能流分布,发现该调控方法可以定制适合粒子操纵的特殊光场。该研究丰富了基于MPWI的OVL的空间模式,为OVL的应用提供了新思路。Multiple plane wave interference(MPWI)is a typical method to produce an optical vortex lattice(OVL).In this letter,via defining the wave vector space coordinate system,a modulating method of OVL with MPWI is proposed,the OVLs generated by four plane wave and five plane wave interference are simulated,the gradient force and energy flow of the OVL are calculated,and its application in the field of particle manipulation is analyzed.Accordingly,a more flexible and richer optical field distribution is obtained via adjusting the size of the partial wave vector and the angle of the rotation wave vector.Finally,by analyzing the gradient force and energy flow,it is found that the light field with a specific purpose can be generated by this method when manipulating particles.This study enriches the diversity of modes of OVL generated by MPWI and provides a novel idea for the study of OVL based on MPWI.

关 键 词：物理光学 多平面波干涉 光学涡旋晶格 微粒操纵 

分 类 号：O436[机械工程—光学工程]