The acoustic wave reflection properties of a nonlinear elastic metasurface, derived from resonant nonlinear elastic elements, are theoretically and numerically studied. The metasurface is composed of a two degree-of-freedom mass-spring system with quadratic elastic nonlinearity. The possibility of converting, during the reflection process, most of the fundamental incoming wave energy into the second harmonic wave is shown, both theoretically and numerically, by means of a proper design of the nonlinear metasurface. The theoretical results from the harmonic balance method for a monochromatic source are compared with time domain simulations for a wave packet source. This protocol allows analyzing the dynamics of the nonlinear reflection process in the metasurface as well as exploring the limits of the operating frequency bandwidth. The reported methodology can be applied to a wide variety of nonlinear metasurfaces, thus possibly extending the family of exotic nonlinear reflection processes.
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Manipulating acoustic wave reflection by a nonlinear elastic metasurface
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28 March 2018
Research Article|
March 27 2018
Manipulating acoustic wave reflection by a nonlinear elastic metasurface
Special Collection:
Acoustic Metamaterials and Metasurfaces
Xinxin Guo;
Xinxin Guo
a)
1
LAUM, CNRS UMR 6613, Le Mans Université
, Av. O. Messiaen, 72085 Le Mans, France
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Vitalyi E. Gusev
;
Vitalyi E. Gusev
1
LAUM, CNRS UMR 6613, Le Mans Université
, Av. O. Messiaen, 72085 Le Mans, France
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Katia Bertoldi;
Katia Bertoldi
2
John A. Paulson School of Engineering and Applied Sciences, Harvard University
, Cambridge, Massachusetts 02138, USA
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Vincent Tournat
Vincent Tournat
b)
1
LAUM, CNRS UMR 6613, Le Mans Université
, Av. O. Messiaen, 72085 Le Mans, France
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a)
Electronic mail: xinxin.guo.etu@univ-lemans.fr
b)
Electronic mail: vincent.tournat@univ-lemans.fr
Note: This paper is part of the Special Topic section “Acoustic Metamaterials and Metasurfaces” published in Journal of Applied Physics Volume 123, Issue 9, 07 March 2018.
J. Appl. Phys. 123, 124901 (2018)
Article history
Received:
November 15 2017
Accepted:
February 26 2018
Citation
Xinxin Guo, Vitalyi E. Gusev, Katia Bertoldi, Vincent Tournat; Manipulating acoustic wave reflection by a nonlinear elastic metasurface. J. Appl. Phys. 28 March 2018; 123 (12): 124901. https://doi.org/10.1063/1.5015952
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