The study of classical wave physics has been reinvigorated by incorporating the concept of
the geometric phase, which has its roots in optics, and topological notions that were …

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 …

A novel one-dimensional quasi-zero-stiffness (QZS) metamaterial is proposed to acquire
very low-frequency band gaps. The representative unit cell (RUC) of the QZS metamaterials …

To achieve wave attenuation at ultra-low frequencies, a novel metamaterial plate with
attached compliant quasi-zero-stiffness (QZS) resonators is proposed. Firstly, the compliant …

The topology concept in the condensed physics and acoustics is introduced into the elastic
wave metamaterial plate, which can show the topological property of the flexural wave. The …

Acoustic topological insulators have revolutionized our understanding of acoustic wave
propagation, providing a robust way to manipulate acoustic waves. Acoustic switches offer …

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 …

The ability to manipulate the propagation of waves on subwavelength scales is important for
many different physical applications. In this paper, we consider a honeycomb-lattice of …

Recently, the quantum effect of condensed matter physics is introduced into the acoustic
field, which lays a new pathway to manipulate the acoustic wave. However, the acoustic …

In this work, we study the propagation of sound waves in a honeycomb waveguide network
loaded with Helmholtz resonators (HRs). By using a plane wave approximation in each …