Topological acoustic polaritons: robust sound manipulation at the subwavelength scale

S Yves, R Fleury, F Lemoult, M Fink… - New Journal of …, 2017 - iopscience.iop.org
Topological insulators, a hallmark of condensed matter physics, have recently reached the
classical realm of acoustic waves. A remarkable property of time-reversal invariant …

Spatial information coding with artificially engineered structures for acoustic and elastic wave sensing

T Jiang, Q He - Frontiers in Physics, 2022 - frontiersin.org
Acoustic and elastic waves carry a wealth of useful physical information in real world.
Sensing acoustic and elastic waves is very important for discovering knowledge in various …

Homogenization and design of acoustic Willis metasurfaces

H Esfahlani, Y Mazor, A Alù - Physical Review B, 2021 - APS
Metasurfaces are ultrathin planar arrays of carefully tailored subwavelength particles that
enable agile and flexible manipulation of the impinging waves. Originally introduced in …

Enhancing the sound absorption of small-scale 3-D printed acoustic metamaterials based on Helmholtz resonators

C Casarini, B Tiller, C Mineo, CN MacLeod… - IEEE Sensors …, 2018 - ieeexplore.ieee.org
Acoustic metamaterials have recently become of interest for their ability to attenuate sound
by breaking the mass-density law. In this paper, acoustic metamaterials based on Helmholtz …

Design of a one-dimensional underwater acoustic leaky wave antenna using an elastic metamaterial waveguide

CW Broadman, CJ Naify, MJ Lee… - Journal of Applied …, 2021 - pubs.aip.org
Acoustic imaging in water traditionally relies on phased arrays of active electro-acoustic
transducers to steer acoustic energy in specific directions. One potential alternative …

Directional enhancement of triangular holographic acoustic leaky-wave antennas with reflectors

MT Akram, JY Jang, K Song - International Journal of Mechanical Sciences, 2024 - Elsevier
Triangular acoustic leaky-wave antennas, designed with holographic acoustic metasurfaces,
represent an efficient approach for manipulating surface waves and achieving directional …

Toward wideband steerable acoustic metasurfaces with arrays of active electroacoustic resonators

H Lissek, E Rivet, T Laurence, R Fleury - Journal of Applied Physics, 2018 - pubs.aip.org
We introduce an active concept for achieving acoustic metasurfaces with steerable reflection
properties, effective over a wide frequency band. The proposed active acoustic metasurface …

Educational open source kit for the evaluation of acoustic leaky wave antennas with metamaterials

E Romero-Vivas, J Romero-Vivas… - The Journal of the …, 2022 - pubs.aip.org
There is a growing interest in the field of acoustic metamaterials. These materials use
periodic structures to exhibit properties not usually found in nature, such as negative mass …

[HTML][HTML] Acoustic supercoupling in a zero-compressibility waveguide

H Esfahlani, MS Byrne, M McDermott, A Alù - Research, 2019 - spj.science.org
Funneling acoustic waves through largely mismatched channels is of fundamental
importance to tailor and transmit sound for a variety of applications. In electromagnetics …

Acoustic spoof surface plasmon polaritons for filtering, isolation and sensing

N Janković, S Ilić, V Bengin, S Birgermajer, V Radonić… - Results in Physics, 2021 - Elsevier
We study a waveguide structure supporting acoustic spoof plasmon polaritons (aSSPPs)
perturbed by a defect, whose specifically tailored geometry enables controllable …