涡旋光场相干调控及拓扑荷测量  

Coherence modulation and topological charge measurement of vortex field

作　　者：王卓异 曾军 张浩 卢兴园 赵承良 蔡阳健[1,2,3] WANG Zhuoyi;ZENG Jun;ZHANG Hao;LU Xingyuan;ZHAO Chengliang;CAI Yangjian(School of Physical Science and Technology,Soochow University,Suzhou 215006,China;School of Physics and Electronics,Shandong Normal University,Jinan 250358,China;Shandong Provincial Engineering and Technical Center of Light Manipulations&Shandong Provincial Key Laboratory of Optics and Photonic Devices,Jinan 250358,China)

机构地区：[1]苏州大学物理科学与技术学院,江苏苏州215006 [2]山东师范大学物理与电子科学学院,山东济南250358 [3]山东省光场调控工程技术中心,山东省光学与光子器件技术重点实验室,山东济南250358

出　　处：《量子电子学报》2022年第2期225-250,共26页Chinese Journal of Quantum Electronics

基　　金：国家重点研发计划,2019YFA0705000;国家自然科学基金,11774250,12174280,11974218,91750201;济南创新团队,2018GXRC010;中央政府地方科技开发项目,YDZX20203700001766;苏州大学仲英青年学者;江苏省现代光学技术重点实验室资助项目,KJS2138。

摘　　要：涡旋光场是一类具有螺旋型波前的特殊结构光场,因其携带相位奇点、轨道角动量以及拥有中央暗核结构等物理特性,被广泛应用于光学微操纵、大容量光通信、超分辨成像等领域。通过对涡旋光场传统的物理维度(振幅、偏振、频率)进行调控,可以得到模式更加丰富、应用领域更广泛的新型涡旋光场。此外,涡旋光场还有一个非常重要的调控维度,即相干性。近年来,研究人员通过对涡旋光场的相干性进行调控得到了一类新型涡旋光场,即部分相干涡旋光场。相比于完全相干涡旋光场,部分相干涡旋光场在某些领域更具优势,如具有较高的抗湍流大气干扰性、更丰富的光束整形、更高的自修复能力和更强的微粒捕获能力等。本综述介绍了近年来整数阶和分数阶涡旋光场相干性调控方面的研究进展,重点对部分相干涡旋光场的理论模型、产生方法、传输特性、拓扑荷测量、应用等方面进行了详细阐述。Vortex field is a kind of special structured light field with spiral wavefront, which is widely used in optical micromanipulation, large-capacity optical communication and super-resolution imaging due to its physical properties such as phase singularity, orbital angular momentum and central dark core structure. By modulating the traditional physical dimensions of vortex field(amplitude, polarization and frequency), the novel vortex fields with richer modes and wider application can be obtained. In addition,there is a very important regulation dimension of vortex field, that is coherence. Recently, researchers have obtained a novel type of vortex field, namely partially coherent vortex beam, by adjusting the coherence of vortex beam. Compared with fully coherent vortex beam, partially coherent vortex beam has more advantages in some fields, such as higher disturbance resistance to turbulent atmosphere, richer beam shaping, higher self-reconstruction ability and stronger particles trapping ability. In this paper,the research progress of the partially coherent integer vortex beams and the partially coherent fractional vortex beams in recent years is reviewed, and the theoretical model, generation method, transmission characteristics, topological charge measurement and application of partially coherent vortex beam are described in detail.

关 键 词：物理光学 奇点光学 涡旋光场 相干调控 部分相干 拓扑荷测量 

分 类 号：TN011[电子电信—物理电子学]