Metamaterials with a Dirac-like cone dispersion at the center of the Brillouin zone behave
like an isotropic and impedance-matched zero refractive index material at the Dirac-point …

Accidental degeneracy plays an important role in the generation of novel band dispersions.
Photonic structures that exhibit an accidental Dirac-like conical dispersion at the center of …

Artificial methods for noise filtering are required for the twenty-first century's Factory vision
4.0. From various perspectives of physics, noise filtering capabilities could be addressed in …

Soundproofing ventilation devices can block sound while allowing free airflow
simultaneously, which have many important applications in daily lives. In this work, we …

This paper proposes a novel phononic crystal sandwich beam (PCSB) for low-frequency
and broadband vibration suppression. The representative volume element (RVE) consists of …

Through an alternative paradigm, a predictive design of a Dirac-like point is introduced in a
linear periodic metamaterial for the spatial guidance of acoustic waves. Dirac conelike …

Introducing computational wave propagation methods developed over 40 years of research,
this comprehensive book offers a computational approach to NDE of isotropic, anisotropic …

We demonstrate a flexible meta-curtain that can simultaneously block the propagation of
sound waves of selected frequencies and let air flow through freely. Such a meta-curtain is …

Limited to the direct modulation on the surface acoustic wave (SAW) by the rotation, the
conventional SAW gyroscopes incur weak Coriolis effects and gyroscopic effects. In this …

Extremely rare t opologically protected acoustic energy sink is presented in this article.
Acoustic topological phenomena are generally described using quantum anomalous hall …