Localized interface modes in one-dimensional hyperuniform acoustic materials

We theoretically, numerically and experimentally report the localization of an acoustic wave at the interface between two one-dimensional hyperuniform materials of different geometrical representations. These materials suppress the acoustic scattering in the long wavelength regime, being rather disordered and degenerate, while possessing a wide band gap. In this work, these hyperuniform materials are made of an air-filled acoustic waveguide with rigid diaphragms acting as scatterers. A wide band gap and the emergence of the edge modes provide promising applications in wave control devices.

Automated summary

We report the localization of an acoustic wave at the interface between two one-dimensional hyperuniform materials of different geometrical representations, which suppress acoustic scattering in the long wavelength regime and possess a wide band gap. These materials are made of an air-filled acoustic waveguide with rigid diaphragms acting as scatterers, offering promising applications in wave control devices with wide band gap and emergence of edge modes.