Observation of two-dimensional acoustic bound states in the continuum
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Otros documentos de la autoría: Martí-Sabaté, Marc; Li, Junfei; Djafari Rouhani, Bahram; Cummer, Steven; Torrent, Daniel
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Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
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Observation of two-dimensional acoustic bound states in the continuumFecha de publicación
2024-04-09Editor
Springer NatureCita bibliográfica
Martí-Sabaté, M., Li, J., Djafari-Rouhani, B. et al. Observation of two-dimensional acoustic bound states in the continuum. Commun Phys 7, 122 (2024). https://doi.org/10.1038/s42005-024-01615-8Tipo de documento
info:eu-repo/semantics/articleVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
The design of devices based on acoustic or optical fields requires the fabrication of cavities and structures capable of efficiently trapping these waves. A special type of cavity can be designed to support resonances ... [+]
The design of devices based on acoustic or optical fields requires the fabrication of cavities and structures capable of efficiently trapping these waves. A special type of cavity can be designed to support resonances with a theoretically infinite quality factor, named bound states in the continuum or BICs. The experimental measurement of such modes is still a challenging problem, as they are, by definition, not accessible from external perturbations. Here we report on the theoretical design and experimental realization of a two-dimensional, fully open acoustic resonator supporting BICs. This accidental BIC, whose symmetry is chosen during design by properly tailoring the geometrical properties of the system, is completely accessible and allows for the direct measurement of the whole pressure field and properties. We experimentally demonstrate its existence with high quality factor and field enhancement properties. [-]
Entidad financiadora
European Union | MCIN/AEI/10.13039/501100011033
Código del proyecto o subvención
101046489 | FPU18/02725 | PID2021-124814NB-C22
Título del proyecto o subvención
DYNAMO project | FEDER A way of making Europe
Derechos de acceso
© The Author(s) 2024
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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