Acoustic Willis meta-atom beyond the bounds of passivity and reciprocity

Metamaterials are designed to control unconventional wave properties in acoustic systems with a range of applications such as acoustic cloaking. Here, the authors design an active acoustic Willis metamaterial that can realize decoupled polarizabilities beyond the bound of passivity and reciprocity.

Bibliographic Details
Main Authors: Choonlae Cho, Xinhua Wen, Namkyoo Park, Jensen Li
Format: Article
Language:English
Published: Nature Publishing Group 2021-04-01
Series:Communications Physics
Online Access:https://doi.org/10.1038/s42005-021-00584-6