| Issue |
EPL
Volume 125, Number 5, March 2019
|
|
|---|---|---|
| Article Number | 54003 | |
| Number of page(s) | 5 | |
| Section | Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics | |
| DOI | https://doi.org/10.1209/0295-5075/125/54003 | |
| Published online | 16 April 2019 | |
Elastic conformal transparency
Institute of Electromagnetics and Acoustics and Key Laboratory of Electromagnetic Wave Science and Detection Technology, Xiamen University - Xiamen 361005, China
Received: 27 December 2018
Accepted: 3 March 2019
In this letter we find that a two-dimensional elastic wave equation could be decoupled into longitudinal and transverse modes for specific Lamé coefficient profiles. Based on previous electromagnetic conformal invisible devices, we propose the first elastic conformal transparent device in two dimensions without thin-plate approximations (an elastic transparent device is an object that is “invisible” for both longitudinal and transverse waves in a solid background). Numerical simulations are performed to verify the transparent functionalities.
PACS: 45.30.+s – General linear dynamical systems / 43.20.+g – General linear acoustics
© EPLA, 2019
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