Broadband Nonreciprocal Acoustic Propagation Using Programmable Boundary Conditions: From Analytical Modeling to Experimental Implementation

Sami Karkar, Emanuele De Bono, Manuel Collet, Gaël Matten, Morvan Ouisse, and Etienne Rivet
Phys. Rev. Applied 12, 054033 – Published 13 November 2019

Abstract

We theoretically, numerically and experimentally demonstrate the acoustic isolator effect in a one-dimensional waveguide with direction-dependent controlled boundary conditions. A theoretical model is used to explain the principle of nonreciprocal propagation in boundary-controlled waveguides. Numerical simulations are preformed on a reduced model to show the nonreciprocity as well as the passivity of the system through the computation of the scattering matrix and the power delivered by the system. Finally, an experimental implementation validates the potential of programmable boundary conditions for nonreciprocal propagation.

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  • Received 1 July 2019
  • Revised 11 September 2019

DOI:https://doi.org/10.1103/PhysRevApplied.12.054033

© 2019 American Physical Society

Physics Subject Headings (PhySH)

Polymers & Soft MatterGeneral PhysicsCondensed Matter, Materials & Applied PhysicsInterdisciplinary Physics

Authors & Affiliations

Sami Karkar1,*, Emanuele De Bono1,†, Manuel Collet1, Gaël Matten2, Morvan Ouisse2, and Etienne Rivet3

  • 1LTDS, École Centrale de Lyon—CNRS UMR5513, 36 Avenue Guy de Collongue, 69134 Ecully Cedex, France
  • 2Department of Applied Mechanics, FEMTO-ST Institute, CNRS/UFC/ENSMM/UTBM, University of Bourgogne Franche-Comté, 24 Chemin de l’Épitaphe, 25000 Besançon, France
  • 3Laboratory of Signal Processing 2, Acoustic Group, IEL-STI, École Polytechnique Fédérale de Lausanne, 10 Route Cantonale, 1015 Lausanne, Switzerland

  • *sami.karkar@ec-lyon.fr
  • emanuele.de-bono@ec-lyon.fr

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Issue

Vol. 12, Iss. 5 — November 2019

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