Active broadband absorber based on phase-change materials optimized via evolutionary algorithm

J Ma, Y Tian, J Cheng, S Cheng, B Tang, J Chen, Y Yi… - Coatings, 2023 - mdpi.com
This article proposes a temperature-controlled absorber based on VO2, which consists of
five layers: a disk-shaped VO2 layer array, a dielectric layer, a circular hole VO2 array, a …

Reconfigurable intelligent surfaces as the key-enabling technology for smart electromagnetic environments

F Bilotti, M Barbuto, Z Hamzavi-Zarghani… - … in Physics: X, 2024 - Taylor & Francis
Future wireless systems integrating communication and sensing will require handling an
enormous amount of data with extremely low latency. Intense video streaming data traffic …

In-memory computing integrated structure circuit based on nonvolatile flash memory unit

P Xu, D Lan, F Wang, I Shin - Electronics, 2023 - mdpi.com
Artificial intelligence has made people's demands for computer computing efficiency
increasingly high. The traditional hardware circuit simulation method for neural morphology …

Frequency-hopping wave engineering with metasurfaces

H Takeshita, AA Fathnan, D Nita, A Nagata… - Nature …, 2024 - nature.com
Wave phenomena can be artificially engineered by scattering from metasurfaces, which aids
in the design of radio-frequency and optical devices for wireless communication, sensing …

Multistability in coupled nonlinear metasurfaces

C Valagiannopoulos - IEEE Transactions on Antennas and …, 2022 - ieeexplore.ieee.org
Multistability, namely, the property of obtaining different outputs depending on the past
values of the input, is the key effect behind memory components in a variety of electronic …

Exact multistability and dissipative time crystals in interacting fermionic lattices

H Alaeian, B Buča - Communications Physics, 2022 - nature.com
The existence of multistability in quantum systems beyond the mean-field approximation
remains an intensely debated open question. Quantum fluctuations are finite-size …

Multiharmonic resonances of coupled time-modulated resistive metasurfaces

TT Koutserimpas, C Valagiannopoulos - Physical Review Applied, 2023 - APS
Temporally varying electromagnetic materials have recently attracted substantial attention
as a platform for building tunable devices, being directly controlled by the developed waves …

Bistability in dissipatively coupled cavity magnonics

H Pan, Y Yang, ZH An, CM Hu - Physical Review B, 2022 - APS
Dissipative coupling of resonators arising from their cooperative dampings to a common
reservoir induces intriguingly new physics such as energy level attraction. In this study, we …

Electromagnetic analog to magic angles in twisted bilayers of two-dimensional media

C Valagiannopoulos - Physical Review Applied, 2022 - APS
Magic angles, namely, relative rotations between two parallel graphene flakes that create
bigger periodic superlattices, are recently found to inherit the bilayer structure with exotic …

Design of reconfigurable Huygens metasurfaces based on Drude-like scatterers operating in the epsilon-negative regime

A Monti, S Vellucci, M Barbuto, L Stefanini… - Optics …, 2024 - opg.optica.org
In this study, we investigate the feasibility of designing reconfigurable transmitting
metasurfaces through the use of Drude-like scatterers with purely electric response …