Research focus
Finite-amplitude acoustic waves in phononic crystals and nonlinear lattices, with numerical studies of wave propagation in structured media.
The dynamics of the acoustic waves travelling through periodic structures show very special properties, e.g. anisotropic dispersion. In addition, when intense waves are considered, the interaction of nonlinear waves with the material dispersion lead to the emergence of a wide range of intrinsically nonlinear phenomena. I'm working on nonlinear localized waves in different media: supersonic excitations in lattices, solitons and nonlinear waves in layered acoustic media, sonic crystals and macroscopic lattices of oscillators.
Lines:
Nonlinear waves in phononic crystals
I'm studying nonlinear wave processes in spatially modulated media such as multilayered acoustic media, phononic crystals or sonic crystals. The rich nonlinear dynamics of these system are characterized by its strong dispersion. Here, harmonic generation processes and its relation with their band structure are explored. We found that the nonlinear processes can be enhanced, strongly minimized or simply modified by tuning the material dispersion relation. Thus, the combined action of nonlinearity (harmonic generation) and periodicity (different propagation velocities and attenuation for the different harmonics) results in novel and unexpected phenomena with respect to the linear counterpart, and opens the door to new mechanisms of acoustic wave control and manipulation.
Related publications
- 2016 · Journal article
Asymmetric propagation using enhanced self-demodulation in a chirped phononic crystal
AIP Advances, 6, 121601, 2016
- 2016 · Journal article
Nonlinear propagation and control of acoustic waves in phononic superlattices
Comptes Rendus Physique, 17 (5), 543 - 554, 2016
- 2015 · Journal article
Nonlinear self-collimated sound beams in sonic crystals
Physical Review B, 92, 054302, 2015
Nonlinear waves in lattices
I'm also exploring intense nonlinear waves in lattices of coupled oscillators. An example are strain waves in a chain of cations coupled by realistic interatomic potentials. In this case, the nonlinear ionic interactions and lattice dispersion lead to the formation of supersonic kinks. These intrinsically-nonlinear localized dislocations travel long distances without changing its properties and can explain the formation of dark traces found in muscovite-mica crystals.
Related publications
- 2017 · Journal article
Nonlinear dispersive waves in repulsive lattices
Physical Review E, 96 (1), 012208, 2017
- 2015 · Journal article
Macroscopic acousto-mechanical analogy of a microbubble
The Journal of the Acoustical Society of America, 138 (6), 3600-3606, 2015
2015 · Edited bookQuodons in Mica: Nonlinear Localized Travelling Excitations in Crystals
Springer International Publishing, 2015
- 2015 · Journal article
Ultradiscrete kinks with supersonic speed in a layered crystal with realistic potentials
Physical Review E, 91 (2), 022912, 2015
More publications in this research area
- 2025 · Journal article
The 2024 Acoustic Metamaterials Roadmap
Journal of Physics D: Applied Physics, 58 (43), 433001, 2025
- 2025 · Journal article
Bidirectional Lambertian scatterers using acoustic holograms for the simultaneous control of reflected and transmitted wavefronts
Advanced Functional Materials, 2423715, 2025
- 2024 · Book chapter
Acoustic Metamaterials for Sub-wavelength, Broadband, and Perfect Absorption in Ventilated Problems
In: Acoustic Metamaterials, Springer Nature Switzerland, pp. 343–372, 2024
- 2023 · Journal article
Emerging topics in nanophononics and elastic, acoustic, and mechanical metamaterials: an overview
Nanophotonics, 12 (4), 659-686, 2023
- 2023 · Book chapter
Materials for Acoustic Wave Generation and Modulation
In: Acoustic Technologies in Biology and Medicine, Wiley-VCH Verlag GmbH, pp. 317-331, 2023
2021 · Edited bookAcoustic Waves in Periodic Structures, Metamaterials, and Porous Media
Springer International Publishing, 2021
- 2021 · Journal article
Scattering Evaluation of Equivalent Surface Impedances of Acoustic Metamaterials in Large FDTD Volumes Using RLC Circuit Modelling
Applied Sciences, 11 (17), 8084, 2021
- 2021 · Journal article
Metadiffusers for quasi-perfect and broadband sound diffusion
Applied Physics Letters, 119, 044101, 2021
- 2021 · Journal article
Spiral sound-diffusing metasurfaces based on holographic vortices
Scientific Reports, 11, 10217, 2021
- 2021 · Journal article
Natural sonic crystal absorber constituted of seagrass (Posidonia Oceanica) fibrous spheres
Scientific Reports, 11, 711, 2021
- 2020 · Journal article
Metamateriaux pour l'acoustique audible : Absorption parfaite et diffusion sublongueur d'onde
Acoustique et Techniques, 94-95, 33-39, 2020
- 2020 · Journal article
Design of acoustic metamaterials made of Helmholtz resonators for perfect absorption by using the complex frequency plane
Comptes Rendus Physique, 21 (7-8), 713-749, 2020
- 2020 · Journal article
Perfect absorption in mirror-symmetric acoustic metascreens
Physical Review Applied, 14 (5), 054055, 2020
- 2019 · Journal article
Experimental validation of deep-subwavelength diffusion by metadiffusers
Applied Physics Letters, 115 (8), 081901, 2019
- 2019 · Journal article
Aerogel-based metasurfaces for perfect acoustic energy absorption
Applied Physics Letters, 115 (6), 061901, 2019
- 2019 · Book chapter
Slow Sound and Critical Coupling to Design Deep Subwavelength Acoustic Metamaterials for Perfect Absorption and Efficient Diffusion
In: Fundamentals and Applications of Acoustic Metamaterials: From Seismic to Radio Frequency, John Wiley & Sons, Ltd, pp. 47-72, 2019
- 2018 · Journal article
Perfect Absorption of Sound by Rigidly-Backed High-Porous Materials
Acta Acustica united with Acustica, 104 (3), 396-409, 2018
- 2018 · Journal article
Broadband reduction of the specular reflections by using sonic crystals: a proof of concept for noise mitigation in aerospace applications
Aerospace Science and Technology, 73, 300-308, 2018
- 2017 · Journal article
Rainbow-trapping absorbers: Broadband, perfect and asymmetric sound absorption by subwavelength panels for transmission problems
Scientific Reports, 7, 13595, 2017
- 2017 · Journal article
Metadiffusers: Deep-subwavelength sound diffusers
Scientific Reports, 7 (1), 5389, 2017
- 2017 · Journal article
Iridescent Perfect Absorption in Critically-Coupled Acoustic Metamaterials Using the Transfer Matrix Method
Applied Sciences, 7 (6), 618, 2017
- 2017 · Journal article
Quasi-perfect absorption by sub-wavelength acoustic panels in transmission using accumulation of resonances due to slow sound
Physical Review B, 95, 014205, 2017
- 2016 · Journal article
Broadband quasi perfect absorption using chirped multi-layer porous materials
AIP Advances, 6, 121605, 2016
- 2016 · Journal article
Ultra-thin metamaterial for perfect and quasi-omnidirectional sound absorption
Applied Physics Letters, 109 (12), 121902, 2016
- 2015 · Journal article
Nonlinear focusing of ultrasonic waves by an axisymmetric diffraction grating embedded in water
Applied Physics Letters, 107, 204103, 2015
Related conference contributions (6)
- 2018 · Conference contribution
Perceptual evaluation of metamaterials as insulation partitions: A listening test within the COST action DENORMS (CA15125)
ISMA 2018: 28th International Conference on Noise and Vibration Engineering. Leuven, Belgium. 17-19 September, Oral, 2018
- 2016 · Conference contribution
Ultra Thin Acoustic Metamaterial Panels Based on Resonant Bricks for Perfect Absorption
METAMATERIALS 2016: 10th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics. Crete, Greece. 17-22 September, Oral, 2016
- 2016 · Conference contribution
Design of sub-wavelength acoustic absorbing panels using accumulation of resonances due to slow sound
METAMATERIALS 2016: 10th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics. Crete, Greece. 17-22 September, Oral, 2016
- 2016 · Conference contribution
Perfect sub-wavelength absorption in reflection and transmission problems
Metamaterials beyond photonics. Edinburgh, UK. 20 - 24 June, Invited, 2016
- 2016 · Conference contribution
Fentes minces chargées par des résonateurs de Helmholtz pour l'absorption du son dans l'audible
CFA 2016: 13ème Congrès Français d'Acoustique. Le Mans, France. 11-15 April, Oral, 2016
- 2016 · Conference contribution
Absorption quasi-parfaite du son par un métamatériau acoustique suite à l'accumulation de résonances due à une propagation lente
CFA 2016: 13ème Congrès Français d'Acoustique. Le Mans, France. 11-15 April, Oral, 2016