Laser & Optoelectronics Progress, Volume. 58, Issue 1, 108001(2021)

Design of Hook-Typed Metasurface for Vortex Beams Generation

Luo Meng*
Author Affiliations
  • Department of Engineering Physics, Tsinghua University, Beijing 100084, China
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    The vortex beam is a kind of special beam with orbital angular momentum. In recent years, it has been widely used in optical information transmission and encryption, astronomy detection, microscopic particle manipulation, and biomedicine. Traditional vortex beam generation methods have certain limitations, such as specific wavelength generation, large component size, and low degree of integration. The development of metasurface micro-nano technology provides a new possibility for the generation and control of vortex beams. In view of this, a vortex beam generation method based on a hook-shaped metasurface array is proposed. The metasurface structure can effectively reduce the size of the vortex beam generator and realize the integration of the device. Moreover, the supersurface structure does not depend on the circular polarization characteristic, wavelength and polarization direction of the specific incident light, so it can realize the generation of the vortex beam with high topological charge.

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    Luo Meng. Design of Hook-Typed Metasurface for Vortex Beams Generation[J]. Laser & Optoelectronics Progress, 2021, 58(1): 108001

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    Paper Information

    Category: Geometric Optics

    Received: Apr. 30, 2020

    Accepted: --

    Published Online: Jan. 28, 2021

    The Author Email: Meng Luo (410058593@qq.com)

    DOI:10.3788/LOP202158.0108001

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