Spin-Selective Angular Dispersion Control in Dielectric Metasurfaces for Multichannel Meta-Holographic Displays

Sabiha Latif, Joohoon Kim, Hafiz Saad Khaliq, Nasir Mahmood, Muhammad Afnan Ansari, Xianzhong Chen, Jehan Akbar, Trevon Badloe, Muhammad Zubair*, Yehia Massoud*, Muhammad Qasim Mehmood*, Junsuk Rho*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Angle-dependent next-generation displays have potential applications in 3D stereoscopic and head-mounted displays, image combiners, and encryption for augmented reality (AR) and security. Metasurfaces enable such exceptional functionalities with groundbreaking achievements in efficient displays over the past decades. However, limitations in angular dispersion control make them unfit for numerous nanophotonic applications. Here, we propose a spin-selective angle-dependent all-dielectric metasurface with a unique design strategy to manifest distinct phase information at different incident angles of light. As a proof of concept, the phase masks of two images are encoded into the metasurface and projected at the desired focal plane under different angles of left circularly polarized (LCP) light. Specifically, the proposed multifunctional metasurface generates two distinct holographic images under LCP illumination at angles of +35 and −35°. The presented holographic displays may provide a feasible route toward multifunctional meta-devices for potential AR displays, encrypted imaging, and information storage applications.

Original languageEnglish
Pages (from-to)708–714
Number of pages7
JournalNano Letters
Volume24
Issue number2
Early online date2 Jan 2024
DOIs
Publication statusPublished - 17 Jan 2024

Keywords

  • angular dispersion
  • displays
  • meta-hologram
  • multichannel hologram
  • multiplexing

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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