Immunity to Backscattering of Bulk Waves ...
Type de document :
Compte-rendu et recension critique d'ouvrage
DOI :
Titre :
Immunity to Backscattering of Bulk Waves in Topological Acoustic Superlattices
Auteur(s) :
Deymier, P [Auteur]
University of Arizona
Vasseur, Jérôme [Auteur]
Acoustique - IEMN [ACOUSTIQUE - IEMN]
Runge, K. [Auteur]
University of Arizona
Khanikaev, A. [Auteur]
City University of New York [New York] [CUNY]
Alù, A. [Auteur]
City University of New York [New York] [CUNY]
University of Arizona
Vasseur, Jérôme [Auteur]
Acoustique - IEMN [ACOUSTIQUE - IEMN]
Runge, K. [Auteur]
University of Arizona
Khanikaev, A. [Auteur]
City University of New York [New York] [CUNY]
Alù, A. [Auteur]
City University of New York [New York] [CUNY]
Titre de la revue :
Crystals
Pagination :
344
Éditeur :
MDPI
Date de publication :
2024
ISSN :
2073-4352
Mot(s)-clé(s) en anglais :
immunity to scattering
phononic superlattice
pseudospin
topological acoustics
phononic superlattice
pseudospin
topological acoustics
Discipline(s) HAL :
Physique [physics]/Mécanique [physics]/Acoustique [physics.class-ph]
Résumé en anglais : [en]
We herein investigate the scattering of orthogonal counterpropagating waves and one-way propagating bulk waves in discrete acoustic superlattices subjected to a scattering potential applied to one of the superlattice unit ...
Lire la suite >We herein investigate the scattering of orthogonal counterpropagating waves and one-way propagating bulk waves in discrete acoustic superlattices subjected to a scattering potential applied to one of the superlattice unit cells. We demonstrate theoretically that the orthogonality of counterpropagating modes does not provide robust protection against backscattering. By contrast, the one-way propagating modes do satisfy a no-reflection condition, i.e., they exhibit immunity to backscattering, for a wide range of applied scattering potentials, which represent defects and disorder.Lire moins >
Lire la suite >We herein investigate the scattering of orthogonal counterpropagating waves and one-way propagating bulk waves in discrete acoustic superlattices subjected to a scattering potential applied to one of the superlattice unit cells. We demonstrate theoretically that the orthogonality of counterpropagating modes does not provide robust protection against backscattering. By contrast, the one-way propagating modes do satisfy a no-reflection condition, i.e., they exhibit immunity to backscattering, for a wide range of applied scattering potentials, which represent defects and disorder.Lire moins >
Langue :
Anglais
Vulgarisation :
Non
Source :
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