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

PLUTO / PLUTO-2 Spatial Light Modulators
Beam Shaping / Beam Steering Digital-/ Computer Holography/ CGH Optical Trapping /-Tweezers
Published on:
Authors: Gao, Xu-Zhen; Pan, Yue; Zhao, Meng-Dan; Zhang, Guan-Lin; Zhang, Yu; Tu, Chenghou; Li, Yongnan & Wang, Hui-Tian
Abstract:

“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”

Open Access

Publication: Optics Express
Issue/Year: Optics Express, Volume 26; Number 2; Pages 1597; 2018
DOI: 10.1364/oe.26.001597
Link: https://doi.org/10.1364/oe.26.001597

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