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

Abdelkrim Khelif; Saeed Mohammadi; Ali Asghar Eftekhar; Ali Adibi; Boujamaa Aoubiza

doi:10.1063/1.3500226

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 journal › Article › peer-review

50 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 language	English
Article number	084515
Journal	Journal of Applied Physics
Volume	108
Issue number	8
DOIs	https://doi.org/10.1063/1.3500226
Publication status	Published - 15 Oct 2010
Externally published	Yes

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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.",

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AU - Adibi, Ali

AU - Aoubiza, Boujamaa

PY - 2010/10/15

Y1 - 2010/10/15

N2 - 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.

AB - 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.

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DO - 10.1063/1.3500226

M3 - Article

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JO - Journal of Applied Physics

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

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