49 citations · 74 across the 4 of their papers we have counts for
13 papers
Wave-packet spreading in disordered soft architected structures
Arnold Ngapasare, Georgios Theocharis, Olivier Richoux +2
We study the dynamical and chaotic behavior of a disordered one-dimensional elastic mechanical lattice which supports translational and rotational waves. The model used in this wor…
Topological two-dimensional Su-Schrieffer-Heeger analogue acoustic networks: Total reflection at corners and corner induced modes
Antonin Coutant, Vassos Achilleos, Olivier Richoux +2
In this work, we investigate some aspects of an acoustic analogue of the two-dimensional Su-Schrieffer-Heeger model. The system is composed of alternating cross-section tubes conne…
Perfect absorption in mirror-symmetric acoustic metascreens
V. Romero-García, N. Jiménez, J. -P. Groby +5
Mirror-symmetric acoustic metascreens producing perfect absorption independently of the incidence side are theoretically and experimentally reported in this work. The mirror-symmet…
Robustness of topological corner modes against disorder and application to acoustic networks
Antonin Coutant, Vassos Achilleos, Olivier Richoux +2
We study the two-dimensional extension of the Su-Schrieffer-Heeger model in its higher order topological insulator phase, which is known to host corner states. Using the separabili…
Wave propagation in a strongly disordered 1D phononic lattice supporting rotational waves
A. Ngapasare, G. Theocharis, O. Richoux +2
We investigate the dynamical properties of a strongly disordered micropolar lattice made up of cubic block units. This phononic lattice model supports both transverse and rotationa…
Multi-functional resonant acoustic networks for wave routing
Olivier Richoux, Vassos Achilleos, Georgios Theocharis +2
We demonstrate that asymmetric 3-port devices can be used to design a multi-functional set-up operating as a symmetric combiner and splitter at the same frequency. For a concrete i…