Artificial resonant crystals for hydroelastic waves
| Autor: | Lucie Domino, Antonin Eddi, Marc Fermigier |
|---|---|
| Přispěvatelé: | Physique et mécanique des milieux hétérogenes (UMR 7636) (PMMH), Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP) |
| Rok vydání: | 2020 |
| Předmět: |
[PHYS]Physics [physics]
010302 applied physics Physics Physics and Astronomy (miscellaneous) Scale (ratio) Field (physics) Acoustics Complex system Metamaterial 02 engineering and technology Condensed matter physics Surface waves 021001 nanoscience & nanotechnology 01 natural sciences Resonator Surface wave Metamaterials Wave mechanics 0103 physical sciences 0210 nano-technology Electronic band structure Wave power |
| Zdroj: | Applied Physics Letters Applied Physics Letters, American Institute of Physics, 2020, 117 (6), pp.063701. ⟨10.1063/5.0018823⟩ |
| ISSN: | 1077-3118 0003-6951 |
| DOI: | 10.1063/5.0018823 |
| Popis: | International audience; Engineering the propagation of water waves is a crucial challenge for potential applications at oceanic scale. Despite their apparent complexity, they do not fundamentally differ from any other kind of physical wave. Similar to recent approaches in optics or acoustics, we propose to artificially manufacture materials at the sub-wavelength scale to modify the propagation characteristics at will. We demonstrate that hydroelastic waves allow for the straightforward control of the medium properties, as well as the quantitative measurement of the full wave field. We investigate propagation in hydroelastic metamaterials made from periodic arrays of tunable resonators. We fully characterize the band structures of such materials, revealing the coexistence of Bragg and hybridization bandgaps. We also introduce a theoretical approach to model this complex system and predict its band structure. These unprecedented experimental and theoretical results reveal the possibility to efficiently control water waves at the laboratory scale. |
| Databáze: | OpenAIRE |
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