TY - GEN
T1 - Dual-Mode Chiral Meta-Holography through All-Dielectric Nano-Surfaces in Visible Regime
AU - Khaliq, Hafiz Saad
AU - Naeem, Taimoor
AU - Riaz, Kashif
AU - Zubair, Muhammad
AU - Mehmood, Muhammad Qasim
AU - Massoud, Yehia
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - 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.
AB - 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.
KW - All-dielectric
KW - Asymmetric Transmission
KW - Chiral Imaging
KW - Chiral Metasurfaces
KW - Chiral Sensing
KW - Chiro-Optical effects
UR - http://www.scopus.com/inward/record.url?scp=85142927903&partnerID=8YFLogxK
U2 - 10.1109/NANO54668.2022.9928670
DO - 10.1109/NANO54668.2022.9928670
M3 - Conference contribution
AN - SCOPUS:85142927903
T3 - Proceedings of the IEEE Conference on Nanotechnology
SP - 194
EP - 197
BT - 2022 IEEE 22nd International Conference on Nanotechnology, NANO 2022
PB - IEEE Computer Society
T2 - 22nd IEEE International Conference on Nanotechnology, NANO 2022
Y2 - 4 July 2022 through 8 July 2022
ER -