3 papers
physics.app-ph2019
Aerogel-based metasurfaces for perfect acoustic energy absorption
Antonio A. Fernández-Marín, Noé Jiménez, Jean-Philippe Groby +2
The unusual viscoelastic properties of silica aerogel plates are efficiently used to design subwavelength perfect sound absorbers. We theoretically, numerically and experimentally…
physics.comp-ph2018
General method to retrieve all effective acoustic properties of fully-anisotropic fluid materials in three dimensional space
Arthur Terroir, Logan Schwan, Théo Cavalieri +3
Anisotropic fluid materials are of growing interest with the development of metamaterials and transformation acoustics. In the general three-dimensional case, such materials are ch…
physics.app-ph2018
Unidirectional zero sonic reflection in passive symmetric Willis media
Aurélien Merkel, Vicent Romero-García, Jean-Philippe Groby +2
In an effective medium description of acoustic metamaterials, the Willis coupling plays the same role as the bianisotropy in electromagnetism. Willis media can be described by a co…