Surface acoustic wave trapping in a periodic array of mechanical resonators

Vincent Laude*, Laurent Robert, William Daniau, Abdelkrim Khelif, Sylvain Ballandras

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

67 Citations (Scopus)

Abstract

The existence of two families of surface acoustic modes trapped by steep ridges on a piezoelectric substrate, shear horizontal and vertically polarized surface modes, is demonstrated experimentally using high aspect ratio interdigital transducers fabricated on lithium niobate. The experimental variation of the resonance frequencies of the various surface modes is obtained experimentally, and up to an order of magnitude slowing of surface waves is observed, with the phase velocity dropping from 4000 down to 450 m/s. It is argued that the observed resonances are surface modes trapped by the ridge electrodes.

Original languageEnglish
Article number083515
JournalApplied Physics Letters
Volume89
Issue number8
DOIs
Publication statusPublished - 2006
Externally publishedYes

Fingerprint

Dive into the research topics of 'Surface acoustic wave trapping in a periodic array of mechanical resonators'. Together they form a unique fingerprint.

Cite this