[Otros] Dans cette revue, nous présentons des résultats sur l'absorption acoustique parfaite sub-longueur
d'onde faisant appel à des métamatériaux acoustiques avec des résonateurs Helmholtz pour différentes
configurations. ...
Malléjac, M.; Merkel, A.; Sánchez-Dehesa Moreno-Cid, José; Christensen, J.; Tournat, V.; Romero-García, V.; Groby, J.-P.(American Institute of Physics, 2021-04-14)
[EN] This paper examines the feasibility of cloaking an obstacle using Plate-type Acoustic Metamaterials (PAMs). We present two distinct strategies
to cloak this obstacle, using either the near-zero-density regime of a ...
[EN] Mirror-symmetric acoustic metascreens producing perfect absorption independently of the incidence side are theoretically and experimentally reported in this work. The mirror-symmetric resonant building blocks of the ...
Malléjac, M.; Sheng, P.; Tournat, V.; Romero-García, Vicente; Groby, J. P.(American Physical Society, 2022-04-19)
[EN] Periodic structures composed of quarter-wavelength or Helmholtz resonators have been widely used in the design of acoustic metamaterials. An interesting phenomenon achievable through hybridization in such structures ...
Malléjac, M.; Merkel, A.; Sánchez-Dehesa Moreno-Cid, José; Christensen, J.; Tournat, V.; Groby, Jean-Philippe; Romero García, Vicente(American Institute of Physics, 2019-09-23)
[EN] We theoretically, numerically, and experimentally analyze the Density-Near-Zero (DNZ) regime of a one-dimensional acoustic metamaterial. This acoustic metamaterial is composed of thin elastic plates periodically clamped ...