---
_id: '66870'
abstract:
- lang: eng
  text: Janus metasurfaces have attracted considerable attention in encrypted communication,
    imaging, and display due to their unusual bidirectional asymmetric optical manipulation
    characteristics. Particularly, their multifunctionalization is of great significance
    for enhancing the compactness and integration of optical systems. However, the
    realization of multifunctional Janus metasurfaces in the optical band still faces
    enormous difficulties and challenges, which are essentially limited by the anti-error
    design and processing methods of multi-layer cascade metasurfaces. Here, a triple-layer
    Janus metasurface based on cascaded plasmonic nano-antenna arrays fully buried
    in SiO2 is constructed. Among them, the cascaded plasma nano-antenna consists
    of two types of enantiomers for each wavelength. Each enantiomer is fabricated
    with two layers of L-shaped nanostructures with phase modulation and one layer
    of dimer nanostructures with polarization selection stacked alternately along
    the optical axis. We experimentally show that the Janus metasurface achieves bidirectional
    asymmetric multi-channel holographic encryption, simultaneously using propagation
    direction, phase, polarization, and wavelength for the first time in the near-infrared
    band, which is expected to provide a frontier route for multifunctional optical
    displays, high-level optical information encryption, and large-capacity full-duplex
    communication.
article_type: original
author:
- first_name: Guocui
  full_name: Wang, Guocui
  last_name: Wang
- first_name: René
  full_name: Geromel, René
  last_name: Geromel
- first_name: Qunshuo
  full_name: Wei, Qunshuo
  last_name: Wei
- first_name: Ruizhe
  full_name: Zhao, Ruizhe
  last_name: Zhao
- first_name: Xiaowei
  full_name: Li, Xiaowei
  last_name: Li
- first_name: Thomas
  full_name: Zentgraf, Thomas
  id: '30525'
  last_name: Zentgraf
  orcid: 0000-0002-8662-1101
- first_name: Lingling
  full_name: Huang, Lingling
  last_name: Huang
citation:
  ama: Wang G, Geromel R, Wei Q, et al. Asymmetric multi-channel holography by cascaded
    plasmonic Janus metasurfaces. <i>Advanced Photonics</i>. 2026;8(05):1-11. doi:<a
    href="https://doi.org/10.1117/1.ap.8.5.056006">10.1117/1.ap.8.5.056006</a>
  apa: Wang, G., Geromel, R., Wei, Q., Zhao, R., Li, X., Zentgraf, T., &#38; Huang,
    L. (2026). Asymmetric multi-channel holography by cascaded plasmonic Janus metasurfaces.
    <i>Advanced Photonics</i>, <i>8</i>(05), 1–11. <a href="https://doi.org/10.1117/1.ap.8.5.056006">https://doi.org/10.1117/1.ap.8.5.056006</a>
  bibtex: '@article{Wang_Geromel_Wei_Zhao_Li_Zentgraf_Huang_2026, title={Asymmetric
    multi-channel holography by cascaded plasmonic Janus metasurfaces}, volume={8},
    DOI={<a href="https://doi.org/10.1117/1.ap.8.5.056006">10.1117/1.ap.8.5.056006</a>},
    number={05}, journal={Advanced Photonics}, publisher={SPIE-Intl Soc Optical Eng},
    author={Wang, Guocui and Geromel, René and Wei, Qunshuo and Zhao, Ruizhe and Li,
    Xiaowei and Zentgraf, Thomas and Huang, Lingling}, year={2026}, pages={1–11} }'
  chicago: 'Wang, Guocui, René Geromel, Qunshuo Wei, Ruizhe Zhao, Xiaowei Li, Thomas
    Zentgraf, and Lingling Huang. “Asymmetric Multi-Channel Holography by Cascaded
    Plasmonic Janus Metasurfaces.” <i>Advanced Photonics</i> 8, no. 05 (2026): 1–11.
    <a href="https://doi.org/10.1117/1.ap.8.5.056006">https://doi.org/10.1117/1.ap.8.5.056006</a>.'
  ieee: 'G. Wang <i>et al.</i>, “Asymmetric multi-channel holography by cascaded plasmonic
    Janus metasurfaces,” <i>Advanced Photonics</i>, vol. 8, no. 05, pp. 1–11, 2026,
    doi: <a href="https://doi.org/10.1117/1.ap.8.5.056006">10.1117/1.ap.8.5.056006</a>.'
  mla: Wang, Guocui, et al. “Asymmetric Multi-Channel Holography by Cascaded Plasmonic
    Janus Metasurfaces.” <i>Advanced Photonics</i>, vol. 8, no. 05, SPIE-Intl Soc
    Optical Eng, 2026, pp. 1–11, doi:<a href="https://doi.org/10.1117/1.ap.8.5.056006">10.1117/1.ap.8.5.056006</a>.
  short: G. Wang, R. Geromel, Q. Wei, R. Zhao, X. Li, T. Zentgraf, L. Huang, Advanced
    Photonics 8 (2026) 1–11.
date_created: 2026-08-31T05:44:11Z
date_updated: 2026-08-31T05:48:43Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1117/1.ap.8.5.056006
intvolume: '         8'
issue: '05'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.researching.cn/Articles/OJf9b235a7c5a0a3bf
oa: '1'
page: 1-11
publication: Advanced Photonics
publication_identifier:
  issn:
  - 2577-5421
  - 2577-5421
publication_status: published
publisher: SPIE-Intl Soc Optical Eng
quality_controlled: '1'
status: public
title: Asymmetric multi-channel holography by cascaded plasmonic Janus metasurfaces
type: journal_article
user_id: '30525'
volume: 8
year: '2026'
...