Terahertz dynamic multichannel holograms generated by spin-multiplexing reflective metasurface

Z Du, C He, J Xin, Z Song - Optics Express, 2024 - opg.optica.org
In recent years, metasurfaces have attracted considerable interest for their unprecedented
capabilities to manipulate intensity, phase, and polarization of an electromagnetic wave …

[HTML][HTML] Terahertz spin-selective metasurface for multichannel switching of OAM

K Guo, M Zhang, Z Du, Z Song - Results in Physics, 2024 - Elsevier
Thanks to switchable wavefronts, design methods of diverse functions are greatly enriched.
However, less attention has been paid to multichannel switchable orbital angular …

Broadband metasurface based on metallic stereo split-ring structure for full-space terahertz beam deflection and focusing effect

L Dong, Y Cheng, H Luo, F Chen, X Li - Materials Today Communications, 2023 - Elsevier
In this paper, we proposed an all-metal metasurface that enables circular polarization (CP)
conversion and wavefront manipulation of the both transmitted and reflected terahertz (THz) …

Thermally switchable metal-free THz electromagnetic shield using phase change material

A Kumar, G Varshney - Materials Today Communications, 2024 - Elsevier
A thermally switchable ultrathin terahertz (THz) metal-free electromagnetic shield can be
developed with the help of phase change material, vanadium oxide (VO 2). The thermal …

Gallium nitride-based geometric and propagation metasurfaces for vortex beam emissions

MH Chen, YL Liu, VC Su - Heliyon, 2024 - cell.com
This work experimentally demonstrates the highly-efficient geometric and propagation
metasurfaces for vortex beam emissions. These metasurfaces are respectively composed of …

Broadband Airy Beam for Mid‐Infrared Wave Enabled by Ge3Sb2Te6 Metasurface

Z Chen, R Zhang, Z Zhou, R Nie, Z Pan… - Annalen der …, 2024 - Wiley Online Library
As a novel phase change material, germanium antimony telluride (Ge3Sb2Te6) possesses
the potential in the field of metasurface to dynamically manipulate wavefront and …

[HTML][HTML] Terahertz four-channel polarization-multiplexed vortex beams based on vanadium dioxide integrated metasurfaces

R Zhang, R Nie, Z Chen, J Chen, Z Song - Results in Physics, 2024 - Elsevier
In recent years, vanadium dioxide (VO 2) has drawn enormous attention in dynamic
electromagnetic (EM) manipulation, owing to its mild phase change condition and prominent …

Novel digital terahertz device for three-state logic gate and phase coding based on graphene and Schottky barrier junctions

Z Li, K Yin, J Zhao, R Xu, T Zhang, L Xu, P Zhou… - Optics and Lasers in …, 2024 - Elsevier
Terahertz technology, III-V group semiconductor devices, and graphene have great potential
for broad applications in 6 G wireless communications. A novel digital terahertz device with …

Strong circular dichroism absorbers using chiral metamaterials with circular polarization

H Yang, H Sun, Y Yang, Q He, X Gongli, B Wang… - Optics …, 2024 - Elsevier
We designed and characterized a chiral metamaterial circularly polarized strong circular
dichroism absorber with dynamic tuning capabilities using graphene. The synergistic …

High-efficiency terahertz wavefront manipulation based on optimized catenary metasurface

M Zhang, Y Wu, P Dong, B Wang, L Yang… - Optics Communications, 2024 - Elsevier
Catenary optics, as a new development object in the field of subwavelength optics, has been
paid close attention and studied by scientists since it was proposed. As a two-dimensional …