Broadband Chiro-Optical Effects for Futuristic Meta-Holographic Displays

Hafiz Saad Khaliq, Joohoon Kim, Taimoor Naeem, Kashif Riaz, Trevon Badloe, Junhwa Seong, Jehan Akbar, Muhammad Zubair*, Muhammad Qasim Mehmood*, Yehia Massoud*, Junsuk Rho*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

53 Scopus citations

Abstract

Futuristic holographic displays will essentially require broadband chiro-optical effects for medical imaging, virtual reality, smart security, and optical encryption. However, conventional metasurfaces cannot provide such on-chip realization of broadband chiro-optical effects. Moreover, the simultaneous conversion of amplitude, polarization, and phase (APP) at optical wavelengths to introduce giant chirality has not been realized yet. In this paper, a planar all-dielectric metasurface is proposed incorporating extra degrees of freedom to comprehend the conversion of APP with broadband chiro-optical effects in terms of giant asymmetric transmission with maximum efficiency of ≈77% at the wavelength of 567 nm. The underlying mechanism behind induced chiro-optical effects is also investigated using higher-order multipolar dielectric resonances. Moreover, experimental validation is performed using the reproduced polarization-encrypted meta-holograms at broadband visible wavelengths. This work expands the scope of meta-nanophotonics with potential applications in bioimaging and polarization-encrypted displays for healthcare and smart security applications.

Original languageEnglish (US)
Article number2201175
JournalAdvanced Optical Materials
Volume10
Issue number22
DOIs
StatePublished - Nov 18 2022

Bibliographical note

Publisher Copyright:
© 2022 Wiley-VCH GmbH.

Keywords

  • broadband
  • chiral imaging
  • chiro-optical effect
  • healthcare
  • holographic display

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

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