Broadband Asymmetric Propagation in Pillared Meta-Plates
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Título
Broadband Asymmetric Propagation in Pillared Meta-PlatesFecha de publicación
2020Editor
MDPIISSN
2073-4352Cita bibliográfica
Chen, L.; Wang, W.; Nie, G.; Jin, Y.; Torrent, D.; Djafari-Rouhani, B. Broadband Asymmetric Propagation in Pillared Meta-Plates. Crystals 2020, 10, 702Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://www.mdpi.com/2073-4352/10/8/702/htmVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
The asymmetric propagation of mechanical energy across interfaces is a challenging problem with a wide range of applications. In this work, we present a novel structure presenting the asymmetric propagation of elastic ... [+]
The asymmetric propagation of mechanical energy across interfaces is a challenging problem with a wide range of applications. In this work, we present a novel structure presenting the asymmetric propagation of elastic waves in thin plates in a broadband range. The structure consists of a combination of symmetrically and asymmetrically distributed pillars, so that the former decouple the different Lamb modes and the latter mix all of them. We show that a combination in tandem with these two structures can realize an efficient broadband asymmetric propagation at the subwavelength range and achieve a transmission difference larger than 200 dB between forward and backward directions. The proposed pillared meta-plate brings a new way for subwavelength and broadband wave manipulation in the fields of wave isolation, sensing and communication, among others. [-]
Publicado en
Crystals, 2020, vol. 10, no 8Proyecto de investigación
National Natural Science Foundation of China (NSFC): 11902223; Shanghai Pujiang Program: 19PJ1410100; Program for professor of special appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning; Fundamental Research Funds for the Central Universities; Spanish Government: RYC-2016-21188; Ministry of Science, Innovation and Universities: RTI2018- 093921-A-C42Derechos de acceso
info:eu-repo/semantics/openAccess
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