Dual-Mode Chiral Meta-Holography through All-Dielectric Nano-Surfaces in Visible Regime

Hafiz Saad Khaliq, Taimoor Naeem, Kashif Riaz, Muhammad Zubair, Muhammad Qasim Mehmood, Yehia Massoud

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

Chiro-optical effects have numerous applications in optical displays, chiral sensing, and chiral imaging. The simultaneous control of amplitude, phase, and polarization with chirality in metasurfaces provides a compact and cost-effective solution for these applications. Here, we propose a planar all-dielectric metasurface based on anisotropic nano-bars instead of conventional chiral structures to avoid the fabrication complexities and the narrow bandwidth at the nanoscale. The fundamental meta-atom of the proposed metasurface contains a pair of nano-bars introducing giant chiro-optical effects in dual transmission mode at wide bandwidth of visible regime. The proposed meta-nano-surface provides the maximum asymmetric transmission of 77%. For the proof of concept, the phase mask of an image is encoded into the meta-nano-surface to reproduce chiral meta-hologram for circularly polarized light at RGB wavelengths. The demonstrated design provides a route to realize giant chiro-optical effects for promising application in optical displays, circular dichroism spectroscopy, circular polarizers, security, and imaging.

Original languageEnglish (US)
Title of host publication2022 IEEE 22nd International Conference on Nanotechnology, NANO 2022
PublisherIEEE Computer Society
Pages194-197
Number of pages4
ISBN (Electronic)9781665452250
DOIs
StatePublished - 2022
Event22nd IEEE International Conference on Nanotechnology, NANO 2022 - Palma de Mallorca, Spain
Duration: Jul 4 2022Jul 8 2022

Publication series

NameProceedings of the IEEE Conference on Nanotechnology
Volume2022-July
ISSN (Print)1944-9399
ISSN (Electronic)1944-9380

Conference

Conference22nd IEEE International Conference on Nanotechnology, NANO 2022
Country/TerritorySpain
CityPalma de Mallorca
Period07/4/2207/8/22

Bibliographical note

Publisher Copyright:
© 2022 IEEE.

Keywords

  • All-dielectric
  • Asymmetric Transmission
  • Chiral Imaging
  • Chiral Metasurfaces
  • Chiral Sensing
  • Chiro-Optical effects

ASJC Scopus subject areas

  • Bioengineering
  • Electrical and Electronic Engineering
  • Materials Chemistry
  • Condensed Matter Physics

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