Acoustic confinement and waveguiding with a line-defect structure in phononic crystal slabs

Abdelkrim Khelif*, Saeed Mohammadi, Ali Asghar Eftekhar, Ali Adibi, Boujamaa Aoubiza

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

46 Citations (Scopus)

Abstract

We present a new way of forming phononic crystal waveguides by coupling a series of line-defect resonators. The dispersion proprieties of these coupled resonator acoustic waveguides (CRAW) can be engineered by using their geometrical parameters. We show that single-mode guiding over a large bandwidth is possible in CRAW formed in a honeycomb-lattice phononic crystal slab of holes in zinc oxide. In addition, a finite length of CRAW structure acts as an efficient selective acoustic filter for Lamb waves.

Original languageEnglish
Article number084515
JournalJournal of Applied Physics
Volume108
Issue number8
DOIs
Publication statusPublished - 15 Oct 2010
Externally publishedYes

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