193 citations · 708 across the 17 of their papers we have counts for
17 papers
Reflector-Free, Highly Confined Love-Like SAWs Enabled by a Phononic Metasurface for Real-Time Monitoring of Cell Dynamics
Jessica Monaldi, Francis Kosior, Julio A. Iglesias Martínez +4
Surface acoustic wave (SAW) devices are widely used in sensing and biosensing but generally suffer from strong attenuation in liquid environments. Conventional approaches rely on r…
Acoustic scattering singularities via quasi-Bound states in the continuum
Anis Maddi, Mourad Oudich, Aurelien Merkel +2
Non-Hermitian systems enable advanced control of wave propagation by exploiting engineered losses. This introduces an additional degree of freedom that permits the emergence of exc…
Higher-order Skin Effect through a Hermitian-non-Hermitian Correspondence and Its Observation in an Acoustic Kagome Lattice
Jia-Xin Zhong, Pedro Fittipaldi de Castro, Tianhong Lu +8
The non-Hermitian skin effect (NHSE) is a distinctive topological phenomenon observed in nonHermitian systems. Recently, there has been considerable interest in exploring higher-or…
Inverse designing metamaterials with programmable nonlinear functional responses in graph space
Marco Maurizi, Derek Xu, Yu-Tong Wang +9
Material responses to static and dynamic stimuli, represented as nonlinear curves, are design targets for engineering functionalities like structural support, impact protection, an…
Localized interfacial Phonon Modes at the Electronic Axion Domain Wall
Abhinava Chatterjee, Mourad Oudich, Yun Jing +1
The most salient feature of electronic topological states of matter is the existence of exotic electronic modes localized at the surface or interface of a sample. In this work, in…
Hybrid ultrathin metasurface for broadband sound absorption
Marnix P. Abrahams, Mourad Oudich, Yann Revalor +2
To this day, achieving broadband low-frequency sound absorption remains a challenge even with the possibilities promised by the advent of metamaterials and metasurfaces, especially…
Engineering Moiré Meta-crystals with Conventional Photonic and Phononic Structures
Mourad Oudich, Xianghong Kong, Tan Zhang +2
Recent discoveries on Mott insulating and unconventional superconducting states in twisted bilayer graphene with Moiré superlattices have reshaped the landscape of ''twistronics''…
Realization of a Z classified chiral-symmetric higher-order topological insulator in a coupling-inversion acoustic crystal
Dongyi Wang, Yuanchen Deng, Mourad Oudich +3
Higher-order topological band theory has transformed the landscape of topological phases in quantum and classical systems. Here, we experimentally demonstrate a two-dimensional (2D…
Tailoring Structure-borne Sound Through Bandgap Engineering in Phononic Crystals and Metamaterials: A Comprehensive Review
Mourad Oudich, Nikhil JRK Gerard, Yuanchen Deng +1
In solid state physics, a bandgap (BG) refers to a range of energies where no electronic states can exist. This concept was extended to classical waves, spawning the entire fields…
Observation of degenerate zero-energy topological states at disclinations in an acoustic lattice
Yuanchen Deng, Wladimir A. Benalcazar, Ze-Guo Chen +3
Building upon the bulk-boundary correspondence in topological phases of matter, disclinations have recently been harnessed to trap fractionally quantized density of states (DoS) in…
Bilayer Photonic Graphene
Mourad Oudich, Guangxu Su, Yuanchen Deng +6
Drawing inspiration from bilayer graphene, this paper introduces its photonic analog comprising two stacked graphene-like photonic crystals, that are coupled in the near-field thro…
Magic-angle Bilayer Phononic Graphene
Yuanchen Deng, Mourad Oudich, Nikhil JRK Gerard +3
Thanks to the recent discovery on the magic-angle bilayer graphene, twistronics is quickly becom11 ing a burgeoning field in condensed matter physics. This letter expands the realm…
Omnidirectional elastic wave attenuation via an isotoxal-star-based auxetic micro-lattice
Nikhil JRK Gerard, Mourad Oudich, Yun Jing
This paper introduces a micro-lattice based metamaterial for low frequency wide-band vibration attenuation, that is enabled by engineering the metamaterial's building blocks to ind…
Study of tantalum and iridium as adhesion layers for Pt/LGS high temperature SAW devices
Thierry Aubert, Omar Elmazria, Badreddine Assouar +6
In this paper, we report on the use of tantalum and iridium as adhesion layers for platinum electrodes used in high temperature SAW devices based on langasite substrates (LGS). Unl…
Space-Time Phononic Crystals with Anomalous Topological Edge States
Mourad Oudich, Yuanchen Deng, Molei Tao +1
It is well known that an interface created by two topologically distinct structures could host nontrivial edge states that are immune to defects. In this letter, we introduce a one…
Bending sound around sharp corners without using topological edge states
Liting Wu, Mourad Oudich, Wenkang Cao +8
Routing and guiding acoustic waves around sharp corners without backscattering losses is of great interest in the acoustics community. Sonic crystals have been primarily utilized t…
A 1D Optomechanical crystal with a complete phononic band gap
J. Gomis-Bresco, D. Navarro-Urrios, M. Oudich +9
Recent years have witnessed the boom of cavity optomechanics, which exploits the confinement and coupling of optical and mechanical waves at the nanoscale. Amongst their physical i…