Combinatorial asymmetric acoustic metamaterials with real-time programmability.

ABSTRACT: Metamaterials can stretch the envelope of attainable material properties giving rise to negative effective dynamical parameters. Metamaterials usually achieve such superior functionality through hard-coded geometry, symmetry, and periodicity that cannot be altered postfabrication. While a great deal of research is dedicated to tunable metamaterials, the ability to tune metamaterials on-the-fly in a scalable manner remains an open challenge. Here, we introduce a real-time programmable, combinatorial metamaterial framework composed of asymmetric pillars that can manipulate acoustic waves based on the pillars' angular orientation. First, we demonstrate the utility of our metamaterials with all pillars oriented in the same direction, exhibiting wave attenuation, localization, and topological i

SUBMITTER: Keogh MR 

PROVIDER: S-EPMC12685028 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature