Cavity-type hypersonic phononic crystals - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue New Journal of Physics Année : 2012

Cavity-type hypersonic phononic crystals

Résumé

We report on the engineering of the phonon dispersion diagram in monodomain anodic porous alumina (APA) films through the porosity and physical state of the material residing in the nanopores. Lattice symmetry and inclusion materials are theoretically identified to be the main factors which control the hypersonic acoustic wave propagation. This involves the interaction between the longitudinal and the transverse modes in the effective medium and a flat band characteristic of the material residing in the cavities. Air and filled nanopores, therefore, display markedly different dispersion relations and the inclusion materials lead to a locally resonant structural behavior uniquely determining their properties under confinement. APA films emerge as a new platform to investigate the rich acoustic phenomena of structured composite matter.
Fichier principal
Vignette du fichier
Sato_2012_New_J._Phys._14_113032.pdf (3.78 Mo) Télécharger le fichier
Origine : Publication financée par une institution
Licence : CC BY SA - Paternité - Partage selon les Conditions Initiales

Dates et versions

hal-00787468 , version 1 (12-07-2022)

Licence

Paternité - Partage selon les Conditions Initiales

Identifiants

Citer

A. Sato, Yan Pennec, T. Yanagishita, H. Masuda, W. Knoll, et al.. Cavity-type hypersonic phononic crystals. New Journal of Physics, 2012, 14, pp.113032. ⟨10.1088/1367-2630/14/11/113032⟩. ⟨hal-00787468⟩
28 Consultations
13 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More