Odd Willis coupling induced by broken time-reversal symmetry

Li Quan; Simon Yves; Yugui Peng; Hussein Esfahlani; Andrea Alù

doi:10.1038/s41467-021-22745-5

Nature Communications (May 2021)

Odd Willis coupling induced by broken time-reversal symmetry

Li Quan,
Simon Yves,
Yugui Peng,
Hussein Esfahlani,
Andrea Alù

Affiliations

Li Quan: Department of Electrical and Computer Engineering, The University of Texas at Austin
Simon Yves: Photonics Initiative, Advanced Science Research Center, City University of New York
Yugui Peng: Photonics Initiative, Advanced Science Research Center, City University of New York
Hussein Esfahlani: Photonics Initiative, Advanced Science Research Center, City University of New York
Andrea Alù: Department of Electrical and Computer Engineering, The University of Texas at Austin

DOI: https://doi.org/10.1038/s41467-021-22745-5
Journal volume & issue: Vol. 12, no. 1
pp. 1 – 9

Abstract

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Exploiting Willis coupling in acoustic metamaterials with designed geometrical asymmetries opens up new opportunities related to sound control and manipulation. Here, the authors report a dual form of Willis coupling in geometrically symmetric acoustic scatterers.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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