633 citations · 2.7k across the 39 of their papers we have counts for
19 papers · 1 filter
Active Su-Schrieffer-Heeger-like System
Mathieu Padlewski, Maxime Volery, Romain Fleury +2
An acoustic dimer composed of two electronically controlled electro-acoustic resonators is presented in view of exploring one-dimensional topological phenomena.
Scattering from Time-modulated Transmission Line Loads: Theory and Experiments in Acoustics
Matthieu Malléjac, Romain Fleury
Scattering wave systems that are periodically modulated in time offer many new degrees of freedom to control waves both in spatial and frequency domains. Such systems, albeit linea…
Anomalous topological waves in strongly amorphous scattering networks
Zhe Zhang, Pierre Delplace, Romain Fleury
Topological insulators are crystalline materials that have revolutionized our ability to control wave transport. They provide us with unidirectional channels that are immune to obs…
Ultrabroadband sound control with deep-subwavelength plasmacoustic metalayers
Stanislav Sergeev, Hervé Lissek, Romain Fleury
Controlling audible sound requires inherently broadband and subwavelength acoustic solutions, which are to date, crucially missing. This includes current noise absorption methods,…
Extreme Spatial Dispersion in Nonlocally-Resonant Elastic Metamaterials
Aleksi Bossart, Romain Fleury
To date, the vast majority of architected materials have leveraged two physical principles to control wave behavior, namely Bragg interference and local resonances. Here, we descri…
Subwavelength Meta-Waveguide Filters and Meta-Ports
Maliheh Khatibi Moghaddam, Romain Fleury
This paper proposes a novel technique for the design of miniaturized waveguide filters based on locally resonant metamaterials (LRMs). We implement ultra-small metamaterial filters…
Switchable and Simultaneous Spatiotemporal Analog Computing
Ali Momeni, Kasra Rouhi, Romain Fleury
Optical wave-based computing has enabled the realization of real-time information processing in both space and time domains. In the past few years, analog computing has experienced…
Time-varying components for enhancing wireless transfer of power and information
Prasad Jayathurathnage, Fu Liu, Mohammad S. Mirmoosa +3
Temporal modulation of components of electromagnetic systems provides an exceptional opportunity to engineer the response of those systems in a desired fashion, both in the time an…
Disorder-induced signal filtering with topological metamaterials
Farzad Zangeneh-Nejad, Romain Fleury
Disorder, ubiquitously present in realistic structures, is generally thought to disturb the performance of analog wave devices, as it often causes strong multiple scattering effect…
Zero-index Weyl metamaterials
Farzad Zangeneh-Nejad, Romain Fleury
Depending on the geometry of their Fermi surfaces, Weyl semimetals and their analogues in classical systems have been classified into two types. In type I Weyl semimetals (WSMs), t…
Dipole polarizability of time-varying particles
M. S. Mirmoosa, T. T. Koutserimpas, G. A. Ptitcyn +2
Invariance under time translation (or stationarity) is probably one of the most important assumptions made when investigating electromagnetic phenomena. Breaking this assumption is…
Far-field subwavelength acoustic imaging by deep learning
Bakhtiyar Orazbayev, Romain Fleury
Seeing and recognizing an object whose size is much smaller than the illumination wavelength is a challenging task for an observer placed in the far field, due to the diffraction l…
Improving sound absorption through nonlinear active electroacoustic resonators
Xinxin Guo, Romain Fleury, Hervé Lissek
Absorbing airborne noise at frequencies below 300 Hz is a particularly vexing problem due to the absence of natural sound absorbing materials at these frequencies. The prevailing s…
Topological Fano Resonances
Farzad Zangeneh Nejad, Romain Fleury
The Fano resonance is a widespread wave scattering phenomenon associated with a peculiar asymmetric and ultra-sharp line shape, which has found applications in a large variety of p…
Constant-pressure sound waves in non-Hermitian disordered media
Etienne Rivet, Andre Brandstötter, Konstantinos G. Makris +3
When waves impinge on a disordered material they are back-scattered and form a highly complex interference pattern. Suppressing any such distortions in the free propagation of a wa…
Acoustic Birefringence via Non-Eulerian Metamaterials
Farzad Zangeneh-Nejad, Romain Fleury
The recently proposed concept of metamaterials has opened exciting venues to control wave-matter interaction in unprecedented ways. Here we demonstrate the relevance of metamateria…
Performing Mathematical Operations using High-Index Acoustic Metamaterials
Farzad Zangeneh-Nejad, Romain Fleury
The recent breakthrough in metamaterial-based optical computing devices [Science 343, 160 (2014)] has inspired a quest for similar systems in acoustics, performing mathematical ope…
Acoustic Analogues of High-Index Optical Waveguide Devices
Farzad Zangeneh-Nejad, Romain Fleury
High index optical waveguide devices such as slab waveguides, strip waveguides and fibers play extremely important roles in a wide range of modern applications including telecommun…
Zero refractive index in space-time acoustic metamaterials
Theodoros Koutserimpas, Romain Fleury
New scientific investigations of artificially structured materials and experiments have exhibit wave manipulation to the extreme. In particular, zero refractive index metamaterials…