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Journal articles
Broadband Asymmetric Propagation in Pillared Meta-Plates
Abstract : 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.
Cited literature [41 references]
https://hal.sorbonne-universite.fr/hal-02941995
Contributor : Hal Sorbonne Université Gestionnaire <>
Submitted on : Thursday, September 17, 2020 - 2:59:30 PM
Last modification on : Tuesday, December 8, 2020 - 3:36:48 AM
Long-term archiving on: : Friday, December 4, 2020 - 5:42:00 PM
Contributor : Hal Sorbonne Université Gestionnaire <>
Submitted on : Thursday, September 17, 2020 - 2:59:30 PM
Last modification on : Tuesday, December 8, 2020 - 3:36:48 AM
Long-term archiving on: : Friday, December 4, 2020 - 5:42:00 PM
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crystals-10-00702-v2.pdf
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