141 citations · 197 across the 4 of their papers we have counts for
4 papers
Acoustic wave scattering by spatio-temporal interfaces
J. Galiana, J. Redondo, R. Picó +1
Space-time materials are obtained by modulating a physical medium with a traveling-wave perturbation of one or several of its constitutive parameters, such as the density or the bu…
Floquet breathers in a modulated nonlinear lattice
Masayuki Kimura, Juan F. R. Archilla, Yusuke Doi +1
In this work, we study a space-time modulated electro-mechanical system, consisting of an array of coupled cantilevers with their on-site potential provided by electromagnets drive…
Formation of high-order acoustic Bessel beams by spiral diffraction gratings
Noé Jiménez, Rubén Picó, Víctor Sánchez-Morcillo +3
The formation of high-order Bessel beams by a passive acoustic device consisting of an Archimedes' spiral diffraction grating is theoretically, numerically and experimentally repor…
Extraordinary absorption of sound in porous lamella-crystals
J. Christensen, V. Romero-García, R. Picó +5
We present the design of a structured material supporting complete absorption of sound with a broadband response and functional for any direction of incident radiation. The structu…