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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. Lastly, this manuscript shows the complete design process for an engineered 90° bend PnC waveguide from inception to experimental demonstration.

Authors:
 [1];  [2];  [2];  [3];  [1];  [3]
  1. Kansas State Univ., Manhattan, KS (United States)
  2. Univ. of New Mexico, Albuquerque, NM (United States)
  3. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1335468
Report Number(s):
SAND-2016-9696J
Journal ID: ISSN 0003-6951; APPLAB; 649561
Grant/Contract Number:  
AC04-94AL85000
Resource Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 109; Journal Issue: 18; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Ghasemi Baboly, M., Raza, A., Brady, J., Reinke, C. M., Leseman, Z. C., and El-Kady, I. Demonstration of acoustic waveguiding and tight bending in phononic crystals. United States: N. p., 2016. Web. doi:10.1063/1.4966463.
Ghasemi Baboly, M., Raza, A., Brady, J., Reinke, C. M., Leseman, Z. C., & El-Kady, I. Demonstration of acoustic waveguiding and tight bending in phononic crystals. United States. https://doi.org/10.1063/1.4966463
Ghasemi Baboly, M., Raza, A., Brady, J., Reinke, C. M., Leseman, Z. C., and El-Kady, I. Mon . "Demonstration of acoustic waveguiding and tight bending in phononic crystals". United States. https://doi.org/10.1063/1.4966463. https://www.osti.gov/servlets/purl/1335468.
@article{osti_1335468,
title = {Demonstration of acoustic waveguiding and tight bending in phononic crystals},
author = {Ghasemi Baboly, M. and Raza, A. and Brady, J. and Reinke, C. M. and Leseman, Z. C. and El-Kady, I.},
abstractNote = {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. Lastly, this manuscript shows the complete design process for an engineered 90° bend PnC waveguide from inception to experimental demonstration.},
doi = {10.1063/1.4966463},
journal = {Applied Physics Letters},
number = 18,
volume = 109,
place = {United States},
year = {2016},
month = {10}
}

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Works referencing / citing this record:

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