光学
光学(聚焦)
光束
连贯性(哲学赌博策略)
梁(结构)
光学镊子
空间相干性
职位(财务)
物理
影子(心理学)
相干理论
激光束
障碍物
相干长度
激光器
超导电性
量子力学
心理学
财务
政治学
法学
经济
心理治疗师
作者
Ying Xu,Yadi Guan,Yulu Liu,Shuqin Lin,Xinlei Zhu,Yangjian Cai,Jiayi Yu,Greg Gbur
出处
期刊:Optics Letters
[The Optical Society]
日期:2023-04-20
卷期号:48 (10): 2631-2631
被引量:10
摘要
We introduce a class of structured light beams, named multi-focus beams, which exhibit self-focusing at multiple propagation distances. We show that the proposed beams not only have the ability to produce multiple longitudinal focal spots, but also that the number, intensity, and position of the foci can be controlled by adjusting the initial beam parameters. Furthermore, we demonstrate that these beams still exhibit self-focusing in the shadow of an obstacle. We have experimentally generated such beams and the results are consistent with the theoretical predictions. Our studies may find application where fine control of the longitudinal spectral density is needed, such as longitudinal optical trapping and manipulation of multiple particles, and transparent material cutting.
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