This broad review summarizes recent advances and “hot” research topics in nanophononics
and elastic, acoustic, and mechanical metamaterials based on results presented by the …

Acoustic resonances in open systems, which are usually associated with resonant modes
characterized by complex eigenfrequencies, play a fundamental role in manipulating …

The concept of non-Hermitian physics has inspired numerous intriguing phenomena in
classical wave systems. By introducing judicious arrangements of gain and loss media, non …

Acoustic metasurfaces are at the frontier of acoustic functional material research owing to
their advanced capabilities of wave manipulation at an acoustically vanishing size. Despite …

Non-Hermitian photonics and topological photonics, as new research fields in optics, have
attracted much attention in recent years, accompanying by a great deal of new physical …

Previous research has attempted to minimize the influence of loss in reflection-and
transmission-type acoustic metasurfaces. This Letter shows that, by treating the acoustic …

Highly efficient absorption of broadband low-frequency sound with a slim subwavelength
meta-structure promises extensive applications in acoustic engineering, which remains a …

We study the photon blockade at exceptional points for a non-Hermitian optomechanical
system coupled to the driven whispering-gallery-mode microresonator with two …

Non-Hermitian effects could create rich dynamical and topological phase structures. In this
work, we show that the collaboration between lattice dimerization and non-Hermiticity could …

We propose a strategy for constructing an asymmetric sound absorber by coupling two
mutually tuned dark and bright modes. The subsequent requirement is that the dark mode …