Structured-Light 3D Imaging Based on Vector Iterative Fourier Transform Algorithm

Quasi-continuous-phase metasurfaces overcome the side effects imposed by high-order diffraction on imaging and can impart optical parameters such as amplitude, phase, polarization, and frequency to incident light at sub-wavelength scales with high efficiency. Structured-light three-dimensional (3D)...

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Bibliographic Details
Published in:Nanomaterials (Basel, Switzerland) Switzerland), 2024-05, Vol.14 (11), p.929
Main Authors: Zhang, Runzhe, Qiao, Siyuan, Luo, Yixiong, Guo, Yinghui, Li, Xiaoyin, Zhang, Qi, Fan, Yulong, Zhao, Zeyu, Luo, Xiangang
Format: Article
Language:English
Subjects:
Algorithms
Analysis
Design optimization
Diffractive optical elements
Efficiency
Fourier transforms
Image reconstruction
Incident light
iterative Fourier transform algorithm
Lasers
Light
Metasurfaces
Methods
Optical components
Optics
quasi-continuous-phase metasurface
Side effects
structured-light 3D imaging
Three dimensional imaging
Vertical cavity surface emission lasers
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Summary:Quasi-continuous-phase metasurfaces overcome the side effects imposed by high-order diffraction on imaging and can impart optical parameters such as amplitude, phase, polarization, and frequency to incident light at sub-wavelength scales with high efficiency. Structured-light three-dimensional (3D) imaging is a hot topic in the field of 3D imaging because of its advantages of low computation cost, high imaging accuracy, fast imaging speed, and cost-effectiveness. Structured-light 3D imaging requires uniform diffractive optical elements (DOEs), which could be realized by quasi-continuous-phase metasurfaces. In this paper, we design a quasi-continuous-phase metasurface beam splitter through a vector iterative Fourier transform algorithm and utilize this device to realize structured-light 3D imaging of a target object with subsequent target reconstruction. A structured-light 3D imaging system is then experimentally implemented by combining the fabricated quasi-continuous-phase metasurface illuminated by the vertical-cavity surface-emitting laser and a binocular recognition system, which eventually provides a new technological path for the 3D imaging field.
ISSN:2079-4991
2079-4991
DOI:10.3390/nano14110929