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  • Received: Jul. 11, 2019

    Accepted: Sep. 2, 2019

    Posted: Oct. 1, 2019

    Published Online: Oct. 22, 2019

    The Author Email: Xiao Shiyi (phxiao@shu.edu.cn)

    DOI: 10.3788/LOP56.202408

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    Zhong Hu, Tao Xu, Rong Tang, Huijie Guo, Shiyi Xiao. Geometric-Phase Metasurfaces: from Physics to Applications[J]. Laser & Optoelectronics Progress, 2019, 56(20): 202408

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Laser & Optoelectronics Progress, Vol. 56, Issue 20, 202408 (2019)

Geometric-Phase Metasurfaces: from Physics to Applications

Hu Zhong1, Xu Tao1, Tang Rong1, Guo Huijie2, and Xiao Shiyi1,*

Author Affiliations

  • 1Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai University, Shanghai 200444, China
  • 2State Key Laboratory of Surface Physics, Department of Physics, Fudan University, Shanghai 200433, China

Abstract

According to the generation mechanism of electromagnetic (EM) phase, electromagnetic metasurfaces can be divided into resonance-based metasurfaces using resonance response of microstructures and geometric-phase metasurfaces using anisotropic response of microstructures. In comparison with the resonance-based metasurfaces, geometric-phase metasurfaces have attracted much attention in recent years because of their non-dispersion, polarization dependence, and easy fabrication. This study presents an overview of the development of geometric-phase metasurfaces from the principle and method of their free modulation of EM waves to their extraordinary wavefront manipulation abilities in both the far- and near-field regions. Finally, we also present three typical applications enabled by geometric-phase metasurfaces, including highly efficient meta-hologram, vortex beam generator/detector, and flat achromatic metalens.

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