Multiplexed manipulation of orbital angular momentum and wavelength in metasurfaces based on arbitrary complex-amplitude control

Guoli He; Yaqin Zheng; Changda Zhou; Siyang Li; Zhonghong Shi; Yanhui Deng; Zhang-Kai Zhou

doi:10.1038/s41377-024-01420-6

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Multiplexed manipulation of orbital angular momentum and wavelength in metasurfaces based on arbitrary complex-amplitude control

Original Articles

- Multiplexed manipulation of orbital angular momentum and wavelength in metasurfaces based on arbitrary complex-amplitude control
- Light: Science & Applications Vol. 13, Issue 5, Pages: 930-940(2024)
- Affiliations：
  
  State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics, Sun Yat-sen University, Guangzhou 510275, China
- Author bio：
  
  Zhang-Kai Zhou (zhouzhk@mail.sysu.edu.cn)
- Funds：
- DOI：10.1038/s41377-024-01420-6
  CLC：
- Received：25 November 2023，
  
  Revised：2024-02-19，
  
  Accepted：10 March 2024，
  
  Published Online：28 April 2024，
  
  Published：31 May 2024
- Accepted：
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He, G. L. et al. Multiplexed manipulation of orbital angular momentum and wavelength in metasurfaces based on arbitrary complex-amplitude control.,Light: Science & Applications, 13, 930-940 (2024).
DOI：

He, G. L. et al. Multiplexed manipulation of orbital angular momentum and wavelength in metasurfaces based on arbitrary complex-amplitude control.,Light: Science & Applications, 13, 930-940 (2024). DOI： 10.1038/s41377-024-01420-6.

摘要

Abstract

Due to its unbounded and orthogonal modes

the orbital angular momentum (OAM) is regarded as a key optical degree of freedom (DoF) for future information processing with ultra-high capacity and speed. Although the manipulation of OAM based on metasurfaces has brought about great achievements in various fields

such manipulation currently remains at single-DoF level

which means the multiplexed manipulation of OAM with other optical DoFs is still lacking

greatly hampering the application of OAM beams and advancement of metasurfaces. In order to overcome this challenge

we propose the idea of multiplexed coherent pixel (MCP) for metasurfaces. This approach enables the manipulation of arbitrary complex-amplitude under incident lights of both plane and OAM waves

on the basis of which we have realized the multiplexed DoF control of OAM and wavelength. As a result

the MCP method expands the types of incident lights which can be simultaneously responded by metasurfaces

enriches the information processing capability of metasurfaces

and creates applications of information encryption and OAM demultiplexer. Our findings not only provide means for the design of high-security and high-capacity metasurfaces

but also raise the control and application level of OAM

offering great potential for multifunctional nanophotonic devices in the future.

关键词

Keywords

references

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