Jimenez, Noe; Huang, Weichung; Romero García, Vicente; Pagneux, Vincent; Groby, J.P.(American Institute of Physics, 2016)
[EN] Using the concepts of slow sound and critical coupling, an ultra-thin acoustic metamaterial panel for perfect and quasi-omnidirectional absorption is theoretically and experimentally conceived in this work. The system ...
Qu, Sichao; Gao, Nan; Tinel, Alain; Morvan, Bruno; Romero-García, Vicente; Groby, Jean-Philippe; Sheng, Ping(American Association for the Advancement of Science, 2022-05-20)
[EN] By using a structured tungsten-polyurethane composite that is impedance matched to water while simultaneously having a much slower longitudinal sound speed, we have theoretically designed and experimentally realized ...
We predict the existence of evanescent modes with unlocked phases in two-dimensional (2D) dielectric periodic structures. Contrary to what is known for one-dimensional structures, where evanescent fields lock to the host ...
Herrero-Durá, Iván; Picó Vila, Rubén; Sánchez Morcillo, Víctor José; García-Raffi, L. M.; Romero García, Vicente(Universidade do Porto, 2016-06-15)
[EN] A resonant sonic crystal made of solid elastic clamped beams is experimentally analysed in this work. The sonic crystal studied in this work has three characteristics: (i) a low filling fraction, (ii) a high frequency ...
Romero García, Vicente; Cebrecos Ruiz, Alejandro; Picó Vila, Rubén; Sánchez Morcillo, Víctor José; García-Raffi, L. M.; Sánchez Pérez, Juan Vicente(American Institute of Physics (AIP), 2013-12-23)
The symmetry matching between the source and the lens results in fundamental interest for lensing applications. In this work, we have modeled an axisymmetric gradient index (GRIN) lens made of rigid toroidal scatterers ...
[EN] Stealthy hyperuniform point patterns are characterized by a vanishing spatial Fourier transform around the origin of the reciprocal vector space. The long-range point density fluctuations are suppressed as well in ...
Chéron, Élie; Simon, Felix; Groby, Jean Philippe; Pagneux, Vincent; Romero-García, Vicente(American Institute of Physics, 2022-08-08)
[EN] By varying the degree of correlation in stealthy hyperuniform (SHU) materials, the continuous evolution from uncorrelated disorder to periodic media is possible and allows us, as such, to study the fate of the bimodal ...
Malléjac, M.; Merkel, A.; Sánchez-Dehesa Moreno-Cid, José; Christensen, J.; Tournat, V.; Groby, Jean-Philippe; Romero García, Vicente(American Institute of Physics, 2019-09-23)
[EN] We theoretically, numerically, and experimentally analyze the Density-Near-Zero (DNZ) regime of a one-dimensional acoustic metamaterial. This acoustic metamaterial is composed of thin elastic plates periodically clamped ...