加载光学涡旋的多光束圆形Airy光束的产生与传输

通过对具有加载光学涡旋的圆形Airy光束传输性质的研究,理论分析了笛卡尔坐标系下,利用分区域法加载光学涡旋的多光束圆形Airy光束的产生,并通过傅里叶变换与角谱传输定理,理论模拟了该光束的传输特性,讨论了加载不同拓扑荷数光学涡旋对光束传输特性的影响。结果表明:拓扑荷数的大小对聚焦位置影响不大,但随着拓扑荷数的增加,焦平面上光束中心处的空心尺寸变大,并且光束的突然自聚焦强度降低。由于该研究具有同时产生并在多光束上加载不同拓扑荷数光学涡旋的优点,在光操控多微粒领域及激光治疗等领域具有潜在的应用价值。

Generation and transmission of multi-beam circular Airy beams loaded with optical vortex

Through studying the transmission properties of a circular Airy beam with loaded optical vortex,the generation of multi-beam circular Airy beam with optical vortex is theoretically analyzed by using the sub-region method in Cartesian coordinate system.The transformation and angular spectrum transfer theorem is used to simulate the transmission characteristics of the beam.The effects of loading optical vortex with different topological loads on the transmission characteristics of the beam are discussed.The results show that the size of the topological charge has little effect on the focus position,but as the topological charge increases,the hollow size at the center of the beam on the focal plane becomes larger,and the sudden self-focusing intensity of the beam decreases.Due to the advantages of simultaneously generating and loading different topological charge optical vortices on multiple beams,the study has potential application value in the field of light-controlled multi-particles and laser treatment.