---
res:
  bibo_abstract:
  - 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.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Guocui
      foaf_name: Wang, Guocui
      foaf_surname: Wang
  - foaf_Person:
      foaf_givenName: René
      foaf_name: Geromel, René
      foaf_surname: Geromel
  - foaf_Person:
      foaf_givenName: Qunshuo
      foaf_name: Wei, Qunshuo
      foaf_surname: Wei
  - foaf_Person:
      foaf_givenName: Ruizhe
      foaf_name: Zhao, Ruizhe
      foaf_surname: Zhao
  - foaf_Person:
      foaf_givenName: Xiaowei
      foaf_name: Li, Xiaowei
      foaf_surname: Li
  - foaf_Person:
      foaf_givenName: Thomas
      foaf_name: Zentgraf, Thomas
      foaf_surname: Zentgraf
      foaf_workInfoHomepage: http://www.librecat.org/personId=30525
    orcid: 0000-0002-8662-1101
  - foaf_Person:
      foaf_givenName: Lingling
      foaf_name: Huang, Lingling
      foaf_surname: Huang
  bibo_doi: 10.1117/1.ap.8.5.056006
  bibo_issue: '05'
  bibo_volume: 8
  dct_date: 2026^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/2577-5421
  - http://id.crossref.org/issn/2577-5421
  dct_language: eng
  dct_publisher: SPIE-Intl Soc Optical Eng@
  dct_title: Asymmetric multi-channel holography by cascaded plasmonic Janus metasurfaces@
...