Phononic crystals (PnCs) control the transport of sound and heat similar to the control of
electric currents by semiconductors and metals or light by photonic crystals. Basic and …

Originally discovered in condensed matter systems, topological insulators (TIs) have been
ubiquitously extended to various fields of classical wave physics including photonics …

In this paper, we obtain acoustic topological insulators with acoustic pseudospin and
topological boundary states by breaking the symmetry of lattice structure with local and …

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 …

By exploiting topological phases, a new approach can be taken to design elastic
waveguides with robust wave propagation against sharp bends or defects. In particular, the …

For several years, acoustic topological insulators have received attention due to their unique
ability to manipulate acoustic waves. However, acoustic wave manipulation due to acoustic …

In this paper, a multi-band acoustic topological insulator based on the Valley Hall effect is
designed. Based on the mirror symmetry in the C 3 v point group phononic crystal, by …

Transport of heat and hypersound with gigahertz (GHz) to terahertz (THz) phonons is crucial
for heat management in electronics, mediating signal processing with microwave radiation …

We present the design, analysis, fabrication and testing of the two topological edge states in
a sub-wavelength two-dimensional sonic crystal (SC) system based on the mechanism of …

Acoustic topological systems explore topological behaviors of phononic crystals. Currently,
most of the experimentally demonstrated acoustic topological systems are for airborne …