Recent advances in terahertz photonic technologies based on graphene and their applications

T Guo, C Argyropoulos - Advanced Photonics Research, 2021 - Wiley Online Library
Graphene is a unique 2D material that has been extensively investigated due to its
extraordinary photonic, electronic, thermal, and mechanical properties. Excited plasmons …

Broadband coherent perfect absorption employing an inverse-designed metasurface via genetic algorithm

P Luo, G Lan, J Nong, X Zhang, T Xu, W Wei - Optics Express, 2022 - opg.optica.org
Coherent perfect absorption (CPA) possesses the unique characteristics of flexibly and
actively molding the flow of light. However, restricted by the low design efficiency and limited …

[HTML][HTML] Dynamically manipulation of anisotropic coherent perfect absorption in borophene metasurface

P Luo, L Yang, G Lan, Y Wang, X Wu, X Du, A Guo… - Physics Letters A, 2024 - Elsevier
This paper proposed a borophene-based metamaterial device to achieve the anisotropic
coherent perfect absorption (CPA) effect in the two-port device. By simply adjusting the …

Hybrid graphene-plasmon gratings

T Guo, C Argyropoulos - Journal of Applied Physics, 2023 - pubs.aip.org
Graphene can support surface plasmons with higher confinement, lower propagation loss,
and substantially more tunable response compared to usual metal-based plasmonic …

Dynamic switching from coherent perfect absorption to parametric amplification in a nonlinear spoof plasmonic waveguide

WY Cui, J Zhang, Y Luo, X Gao, TJ Cui - Nature Communications, 2024 - nature.com
Coherent perfect absorption (CPA) and amplification of electromagnetic waves are converse
phenomena, where incoming radiations are coherently dissipated or amplified by structured …

Nonreciprocal transmission of electromagnetic waves with nonlinear active plasmonic metasurfaces

T Guo, C Argyropoulos - Physical Review B, 2022 - APS
Nonreciprocity is important for optical information processing, full-duplex communications,
and protection of sensitive laser equipment from unwanted reflections. However, it is very …

Broadband coherent perfect absorption by cavity coupled to three-level atoms in linear and nonlinear regimes

L Wang, J Hu, J Du, K Di - New Journal of Physics, 2021 - iopscience.iop.org
A broadband coherent perfect absorption (CPA) scheme consisting of an optical resonator
coupled with three-level atoms excited by single cavity mode is proposed and analyzed. We …

Chiral phase modulation and a tunable broadband perfect absorber using a coherent cold atomic ensemble

YX Wang, Y Zhang, L Du, JH Wu - Physical Review A, 2023 - APS
We investigate the two-channel nonreciprocal scattering of a coherent atomic ensemble
under the linear spatial Kramers-Kronig modulation, which has potential applications in …

[HTML][HTML] Switchable Vanadium Dioxide Metasurface for Terahertz Ultra-Broadband Absorption and Reflective Polarization Conversion

W Zou, C Zhong, L Hong, J Lei, Y Shen, X Deng… - Micromachines, 2024 - mdpi.com
Based on the unique insulator-metal phase transition property of vanadium dioxide (VO2),
we propose an integrated metasurface with a switchable mechanism between ultra …

Ultra-sensitive, graphene metasurface sensor integrated with the nonradiative anapole mode for detecting and differentiating two preservatives

GF Wu, FP Yan, X Yan, W Wang, T Li, ZH Li… - …, 2024 - degruyter.com
Graphene-based metamaterial sensors are of significant research value for detecting food
preservatives at low concentrations due to their extremely high sensitivity levels. In this work …