Demonstration of acoustic waveguiding and tight bending in phononic crystals

M. Ghasemi Baboly; A. Raza; J. Brady; C. M. Reinke; Z. C. Leseman; I. El-Kady

doi:10.1063/1.4966463

Demonstration of acoustic waveguiding and tight bending in phononic crystals

M. Ghasemi Baboly
, A. Raza
, J. Brady
, C. M. Reinke
, Z. C. Leseman
, I. El-Kady^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

37 Scopus citations

Abstract

The systematic design, fabrication, and characterization of an isolated, single-mode, 90° bend phononic crystal (PnC) waveguide are presented. A PnC consisting of a 2D square array of circular air holes in an aluminum substrate is used, and waveguides are created by introducing a line defect in the PnC lattice. A high transmission coefficient is observed (-1 dB) for the straight sections of the waveguide, and an overall 2.3 dB transmission loss is observed (a transmission coefficient of 76%) for the 90° bend. Further optimization of the structure may yield higher transmission efficiencies. This manuscript shows the complete design process for an engineered 90° bend PnC waveguide from inception to experimental demonstration.

Original language	English
Article number	183504
Journal	Applied Physics Letters
Volume	109
Issue number	18
DOIs	https://doi.org/10.1063/1.4966463
State	Published - 31 Oct 2016
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2016 Author(s).

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.4966463

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title = "Demonstration of acoustic waveguiding and tight bending in phononic crystals",

abstract = "The systematic design, fabrication, and characterization of an isolated, single-mode, 90° bend phononic crystal (PnC) waveguide are presented. A PnC consisting of a 2D square array of circular air holes in an aluminum substrate is used, and waveguides are created by introducing a line defect in the PnC lattice. A high transmission coefficient is observed (-1 dB) for the straight sections of the waveguide, and an overall 2.3 dB transmission loss is observed (a transmission coefficient of 76\%) for the 90° bend. Further optimization of the structure may yield higher transmission efficiencies. This manuscript shows the complete design process for an engineered 90° bend PnC waveguide from inception to experimental demonstration.",

author = "\{Ghasemi Baboly\}, M. and A. Raza and J. Brady and Reinke, \{C. M.\} and Leseman, \{Z. C.\} and I. El-Kady",

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language = "English",

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AU - Ghasemi Baboly, M.

AU - Raza, A.

AU - Brady, J.

AU - Reinke, C. M.

AU - Leseman, Z. C.

AU - El-Kady, I.

PY - 2016/10/31

Y1 - 2016/10/31

N2 - The systematic design, fabrication, and characterization of an isolated, single-mode, 90° bend phononic crystal (PnC) waveguide are presented. A PnC consisting of a 2D square array of circular air holes in an aluminum substrate is used, and waveguides are created by introducing a line defect in the PnC lattice. A high transmission coefficient is observed (-1 dB) for the straight sections of the waveguide, and an overall 2.3 dB transmission loss is observed (a transmission coefficient of 76%) for the 90° bend. Further optimization of the structure may yield higher transmission efficiencies. This manuscript shows the complete design process for an engineered 90° bend PnC waveguide from inception to experimental demonstration.

AB - The systematic design, fabrication, and characterization of an isolated, single-mode, 90° bend phononic crystal (PnC) waveguide are presented. A PnC consisting of a 2D square array of circular air holes in an aluminum substrate is used, and waveguides are created by introducing a line defect in the PnC lattice. A high transmission coefficient is observed (-1 dB) for the straight sections of the waveguide, and an overall 2.3 dB transmission loss is observed (a transmission coefficient of 76%) for the 90° bend. Further optimization of the structure may yield higher transmission efficiencies. This manuscript shows the complete design process for an engineered 90° bend PnC waveguide from inception to experimental demonstration.

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DO - 10.1063/1.4966463

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AN - SCOPUS:84994382215

SN - 0003-6951

VL - 109

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 18

M1 - 183504

ER -

Demonstration of acoustic waveguiding and tight bending in phononic crystals

Abstract

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