Multi-functional resonant acoustic wave router
- 21 February 2020
- journal article
- research article
- Published by IOP Publishing in Journal of Physics D: Applied Physics
- Vol. 53 (23), 235101
- https://doi.org/10.1088/1361-6463/ab78d9
Abstract
Routing wave at subwavelenght scale remains an important scientific and technological challenge highly related to a variety of applications as information processing, energy harvesting and communication devices. We construct a compact multi-functional four-port system using as building blocks three-port acoustic devices. These latter act as splitter and combiner operating at the same frequency in the subwavelength regime. We start by experimentally demonstrating the splitter/combiner function of the three-port acoustic device composed of waveguides side loaded by Helmholtz resonators. Then, we optimize this device to achieve in addition perfect transmission. Finally, we propose a four-port system interconnecting the optimized three-port devices and we show various wave routing features with almost perfect transmission depending on the phase of the inputs.Keywords
Funding Information
- Etoiles Montantes of the Pays de la Loire French Region (CS.MICRO)
- Le Mans Acoustique (APAMAS)
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