Focusing behavior of the fractal vector optical fields designed by fractal lattice growth model

被引:23
作者
Gao, Xu-Zhen [1 ,2 ]
Pan, Yue [1 ,2 ]
Zhao, Meng-Dan [1 ,2 ]
Zhang, Guan-Lin [1 ,2 ]
Zhang, Yu [1 ,2 ]
Tu, Chenghou [1 ,2 ]
Li, Yongnan [1 ,2 ]
Wang, Hui-Tian [1 ,2 ,3 ,4 ]
机构
[1] Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China
[2] Nankai Univ, Key Lab Weak Light Nonlinear Photon, Tianjin 300071, Peoples R China
[3] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China
[4] Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China
基金
中国国家自然科学基金; 国家重点研发计划;
关键词
ZONE PLATES; DIFFRACTION; BEAMS; LIGHT; SCATTERING; GENERATION; GRATINGS; CREATION;
D O I
10.1364/OE.26.001597
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We introduce a general fractal lattice growth model, significantly expanding the application scope of the fractal in the realm of optics. This model can be applied to construct various kinds of fractal "lattices" and then to achieve the design of a great diversity of fractal vector optical fields (F-VOFs) combinating with various "bases". We also experimentally generate the F-VOFs and explore their universal focusing behaviors. Multiple focal spots can be flexibly enginnered, and the optical tweezers experiment validates the simulated tight focusing fields, which means that this model allows the diversity of the focal patterns to flexibly trap and manipulate micrometer-sized particles. Furthermore, the recovery performance of the F-VOFs is also studied when the input fields and spatial frequency spectrum are obstructed, and the results confirm the robustness of the F-VOFs in both focusing and imaging processes, which is very useful in information transmission. (c) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码:1597 / 1614
页数:18
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