摘要
相干性是激光束的一个重要特性,具有低空间相干性的激光束称为部分相干光束;关联结构(函数)是部分相干光束的一个特有参量,通过调控相干性可构建具有特殊关联结构的部分相干光束。在湍流大气中,特殊关联结构部分相干光束不仅展现出诸多奇特传输性质,而且能够进一步有效抑制大气湍流引起的光强及相干度分布退化、光斑漂移和光强闪烁等各种湍流负面效应,在自由空间光通信、激光雷达和激光遥感等方面有重要应用前景。近年来特殊关联结构部分相干光束大气传输研究受到越来越多学者的关注。回顾了特殊关联结构部分相干光束大气传输研究方法和发展历程,举例展示了厄米系列特殊关联结构部分相干光束的大气传输研究成果。
Coherence is an important property of laser beam,and laser beam with low spatial coherence is called partially coherent beam.Coherence structure is an unique parameter of partially coherent beams,and partially coherent beams with special coherence structure can be generated by manipulating their coherence properties.Partially coherent beams with special coherence structure not only exhibit many interesting propagation properties,but also can suppress the negative effects of atmospheric turbulence,such as degradation of intensity and coherence distribution,beam wander and scintillation,which have many application prospects in free-space optical communications,remote sensing,active laser radar systems,and so on.Recently,more and more attention is being paid to the propagation of partially coherent beams with special coherence structure in turbulent atmosphere.The research methods and development of partially coherent beams with special correlation structure are reviewed,and the propagation properties of partially coherent beams with Hermite series coherence structure in turbulent atmosphere are illustrated as examples.
作者
余佳益
蔺淑琴
徐颖
朱新蕾
王飞
蔡阳健
YU Jiayi;LIN Shuqin;XU Ying;ZHU Xinlei;WANG Fei;CAI Yangian(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 Device,Jinan 250358,China;School of Physical Science and Technology,Soochow University,Suzhou 215006,China)
出处
《量子电子学报》
CAS
CSCD
北大核心
2020年第4期392-408,共17页
Chinese Journal of Quantum Electronics
基金
国家重点研发计划项目,2019YFA0705000
国家杰出青年科学基金,11525418
国家自然科学基金,11947240,11974218,11874046,91750201
济南市创新团队,2018GXRC010
江苏省研究生科研与实践创新计划项目,KYCX20-2647。
关键词
大气光学
抗湍流能力
广义惠更斯-菲涅尔原理
关联结构
部分相干光束
atmospheric optics
turbulence resistance
generalized Huygens-Fresnel principle
coherence structure
partially coherent beam
