Angular momentum holography via a minimalist metasurface for optical nested encryption

Hui Yang; Peng He; Kai Ou; Yueqiang Hu; Yuting Jiang; Xiangnian Ou; Honghui Jia; Zhenwei Xie; Xiaocong Yuan; Huigao Duan

doi:10.1038/s41377-023-01125-2

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Angular momentum holography via a minimalist metasurface for optical nested encryption

Original Articles

- Angular momentum holography via a minimalist metasurface for optical nested encryption
- Light: Science & Applications Vol. 12, Issue 4, Pages: 646-656(2023)
- Affiliations：
  
  1.National Research Center for High-Efficiency Grinding, College of Mechanical and Vehicle Engineering, Hunan University, Changsha, 410082, China
  2.Nanophotonics Research Center, Shenzhen Key Laboratory of Micro-scale Optical Information Technology, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, Guangdong, China
  3.Institute of Precision Optical Engineering, School of Physics Science and Engineering, Tongji University, Shanghai, 200092, China
  4.Greater Bay Area Institute for Innovation, Hunan University, Guangzhou, 511300, Guangdong Province, China
- Author bio：
  
  Yueqiang Hu (huyq@hnu.edu.cn)
  Zhenwei Xie (ayst3_1415926@sina.com)
  Huigao Duan (duanhg@hnu.edu.cn)
- Funds：
- DOI：10.1038/s41377-023-01125-2
  CLC：
- Published：30 April 2023，
  
  Published Online：28 March 2023，
  
  Received：13 September 2022，
  
  Revised：23 February 2023，
  
  Accepted：6 March 2023
Scan for full text
Yang, H.et al. Angular momentum holography via a minimalist metasurface for optical nested encryption.Light: Science & Applications,12, 646-656 (2023).
DOI：

Yang, H.et al. Angular momentum holography via a minimalist metasurface for optical nested encryption.Light: Science & Applications,12, 646-656 (2023). DOI： 10.1038/s41377-023-01125-2.

摘要

Abstract

Metasurfaces can perform high-performance multi-functional integration by manipulating the abundant physical dimensions of light

demonstrating great potential in high-capacity information technologies. The orbital angular momentum (OAM) and spin angular momentum (SAM) dimensions have been respectively explored as the independent carrier for information multiplexing. However

fully managing these two intrinsic properties in information multiplexing remains elusive. Here

we propose the concept of angular momentum (AM) holography which can fully synergize these two fundamental dimensions to act as the information carrier

via a single-layer

noninterleaved metasurface. The underlying mechanism relies on independently controlling the two spin eigenstates and arbitrary overlaying them in each operation channel

thereby spatially modulating the resulting waveform at will. As a proof of concept

we demonstrate an AM meta-hologram allowing the reconstruction of two sets of holographic images

i.e.

the spin-orbital locked and the spin-superimposed ones. Remarkably

leveraging the designed dualfunctional AM meta-hologram

we demonstrate a novel optical nested encryption scheme

which is able to achieve parallel information transmission with ultra-high capacity and security. Our work opens a new avenue for optionally manipulating the AM

holding promising applications in the fields of optical communication

information security and quantum science.

关键词

Keywords

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