Issue |
EPL
Volume 145, Number 4, February 2024
|
|
---|---|---|
Article Number | 46001 | |
Number of page(s) | 4 | |
Section | Condensed matter and materials physics | |
DOI | https://doi.org/10.1209/0295-5075/ad26af | |
Published online | 26 February 2024 |
Reflective mode conversions between extensional and flexural waves by ultrathin oblique anisotropic tri-component resonators
School of Mathematics and Physics, China University of Geosciences - Wuhan 430074, Hubei, China
Received: 4 December 2023
Accepted: 6 February 2024
In this letter, we report a theoretical study for the conversions between extensional and flexural modes for Lamb waves. The incident extensional waves can be completely converted into reflected flexural waves, or vice versa. The used structure is oblique anisotropic tri-component resonators with locally dipolar resonators. Without special optimization designs, the thickness of conversion device is much smaller than the working wavelengths (1/150 and 1/15 for the extensional and flexural waves, respectively). Our proposed design is more feasible for low-frequency application scenarios.
© 2024 EPLA
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