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

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.


Published in:
Physical Review Applied, 12, 5, 054033
Year:
Nov 13 2019
Publisher:
College Pk, AMER PHYSICAL SOC
ISSN:
2331-7019
Keywords:
Laboratories:




 Record created 2019-11-27, last modified 2020-10-27


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