Acoustics and Mechanics of Porous Materials

This research operation studies the acoustic and mechanical properties of porous and metaporous materials used in various acoustic applications. It includes different topics of study: anisotropic porous materials with gradient properties, numerical methods for porous and metaporous, experimental characterization methods, (e.g. SLATCoW method, Spatial LAplace Transform for Complex Wavenumber recovery), phononic crystals and hyperuniform media, plates/zero density and doping, critical coupling, slow wave and perfect absorption, metadiffusers and thin structures for sound diffusion, nonlocal acoustic description of properties inspired by nonlocal electromagnetism.  

SLATCoW method : (Geslain et al., J. Appl. Phys. 120: 135107, (2016))

Metasurfaces : (N Jiménez, TJ Cox, V Romero-García, JP Groby, Metadiffusers: Deep-subwavelength sound diffusers, Sci. Rep. 7: 5389, (2017))