PhotoniX, Volume. 2, Issue 1, 10(2021)

Dielectric metasurface zone plate for the generation of focusing vortex beams

Yufeng Hu1、†, Xuan Liu2,3、†,*, Mingke Jin4、†, Yutao Tang4, Xuecai Zhang4, King Fai Li4, Yan Zhao2,3, Guixin Li4,5、**, and Jing Zhou1、***
Author Affiliations
  • 1Applied Optics Beijing Area Major Laboratory, Department of Physics, Beijing Normal University, Beijing 100875, China
  • 2Institute of Laser Engineering, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
  • 3Key Laboratory of Trans-scale Laser Manufacturing Technology, Beijing University of Technology, Ministry of Education, Beijing 100124, China
  • 4Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
  • 5Shenzhen Engineering Research Center for Novel Electronic Information Materials and Devices, Southern University of Science and Technology, Shenzhen 518055, China
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    Vortex beams carrying orbital angular momentum have important applications in high dimensional optical information processing, manipulations of tiny particles, super-resolution imaging and so on. Among various optical components, metasurface represents an ideal platform for realizing vortex beams with multiple optical functionalities due to its strong ability in manipulating the phase, polarization and amplitude of light. A metasurface combing the functions of a lens and a vortex beam generator can greatly shrink the size of many optical systems. Here, we alternatively propose a new metasurface design based on the concept of a Fresnel zone plate to generate, focus the vortex beams, and perform on-axis interference between different vortex beams. These functions are experimentally demonstrated through encoding the spiral phase profiles into the odd and even zones of a dielectric metasurface. The proposed vortex beam generation strategy employs the advantages of both the Fresnel zone plate and the metasurface, and may open new routes for high-dimensional optical information processing.

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    Yufeng Hu, Xuan Liu, Mingke Jin, Yutao Tang, Xuecai Zhang, King Fai Li, Yan Zhao, Guixin Li, Jing Zhou. Dielectric metasurface zone plate for the generation of focusing vortex beams[J]. PhotoniX, 2021, 2(1): 10

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    Paper Information

    Category: Research Articles

    Received: Apr. 27, 2021

    Accepted: Jun. 11, 2021

    Published Online: Jul. 10, 2023

    The Author Email: Liu Xuan (liuxuan@bjut.edu.cn), Li Guixin (ligx@sustech.edu.cn), Zhou Jing (jzhou@bnu.edu.cn)

    DOI:10.1186/s43074-021-00035-z

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