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Phononic graded meta-MEMS for elastic wave amplification and filtering by Maspero, Federico; De Ponti, Jacopo Maria; Iorio, Luca; Esposito, Annachiara; Bertacco, Riccardo; di Matteo, Andrea; Corigliano, Alberto; Ardito, Raffaele is a scholarly article available to read on EtoBox.
What is Phononic graded meta-MEMS for elastic wave amplification and filtering about?
Inspired by recent graded metamaterials designs, we create phononic arrays of micro-resonators for frequency signal amplification and wave filtering. Leveraging suspended waveguides on a thick silicon substrate, we hybridize surface Rayleigh and Lamb flexural waves to effectively achieve phononic signal control along predefined channels. The guided waves are then spatially controlled using a suitable grading of the micro-resonators, which provide high signal-to-noise ratio and simultaneously create phononic delay-lines. The proposed device can be used for sensing, wave filtering or energy harvesting.
- Author
- Maspero, Federico; De Ponti, Jacopo Maria; Iorio, Luca; Esposito, Annachiara; Bertacco, Riccardo; di Matteo, Andrea; Corigliano, Alberto; Ardito, Raffaele
- Published
- 2023
- Language
- EN