Next Article in Journal
Influence of External Static Magnetic Fields on Properties of Metallic Functional Materials
Next Article in Special Issue
Analysis of Bending Waves in Phononic Crystal Beams with Defects
Previous Article in Journal
Vickers Hardness of Diamond and cBN Single Crystals: AFM Approach
Previous Article in Special Issue
Experimental and Theoretical Investigation of Lowering the Band Gaps of Phononic Crystal Beams through Fluid-Solid Coupling
Article Menu
Issue 12 (December) cover image

Export Article

Open AccessArticle
Crystals 2017, 7(12), 372;

Phononic Crystal Made of Multilayered Ridges on a Substrate for Rayleigh Waves Manipulation

CNRS, Institut Jean Lamour, UMR 7198, F-54506 Vandœuvre-lès-Nancy, France
Institut Jean Lamour, Université de Lorraine, UMR 7198, 54506 Vandœuvre-lès-Nancy, France
Institut d’Electronique, de Micro-électronique et de Nanotechnologie (IEMN–UMR CNRS 8520), Université de Lille, Sciences et Technologies, Cité Scientifique, 59652 Villeneuve d’Ascq, France
Sorbonne Universités, UPMC Université Paris 06, INSP UMR CNRS 7588, 4 Place Jussieu, 75005 Paris, France
Author to whom correspondence should be addressed.
Academic Editors: Abdelkrim Khelif and Sarah Benchabane
Received: 6 November 2017 / Revised: 3 December 2017 / Accepted: 6 December 2017 / Published: 12 December 2017
(This article belongs to the Special Issue Phononics)
PDF [4929 KB, uploaded 12 December 2017]


We present a phononic crystal to achieve efficient manipulation of surface acoustic waves (SAW). The structure is made of finite phononic micro-ridges arranged periodically in a substrate surface. Each ridge is constructed by staking silicon and tungsten layers so that it behaves as one-dimensional phononic crystal which exhibits band gaps for elastic waves. The band gap allows the existence of resonance modes where the elastic energy is either confined within units in the free end of the ridge or the ones in contact with the substrate. We show that SAW interaction with localized modes in the free surface of the ridge gives rise to sharp attenuation in the SAW transmission, while the modes confined within the ridge/substrate interface cause broad band attenuations of SAW. Furthermore, we demonstrate that the coupling between the two kinds of modes within the band gap gives high SAW transmission amplitude in the form of Fano-like peaks with high quality factor. The structure could provide an interesting solution for accurate SAW control for sensing applications, for instance. View Full-Text
Keywords: phononic crystal; surface acoustic wave; Fano resonance phononic crystal; surface acoustic wave; Fano resonance

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Oudich, M.; Djafari-Rouhani, B.; Bonello, B.; Pennec, Y.; Sarry, F. Phononic Crystal Made of Multilayered Ridges on a Substrate for Rayleigh Waves Manipulation. Crystals 2017, 7, 372.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Crystals EISSN 2073-4352 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top