Acoustic metamaterials can manipulate and control sound waves in ways that are not
possible in conventional materials. Metamaterials with zero, or even negative, refractive …

Within a time span of 15 years, acoustic metamaterials have emerged from academic
curiosity to become an active field driven by scientific discoveries and diverse application …

Acoustic metasurfaces derive their characteristics from the interaction between acoustic
waves and specifically designed materials. The field is driven by the desire to control …

The concept of metamaterials originates from the proposal of left-hand materials with
negative refractive index, followed by which, varieties of metamaterials with kinds of fantastic …

Phononic crystals (PCs) and metamaterials (MMs) can exhibit abnormal properties, even far
beyond those found in nature, through artificial design of the topology or ordered structure of …

Vibration and sound control is critical to many practical engineering systems in order to
minimise the detrimental effects caused by unavoidable vibrations and noises …

An impedance-matched surface has the property that an incident wave generates no
reflection. Here we demonstrate that by using a simple construction, an acoustically …

The attenuation of low-frequency sound has been a challenging task because the intrinsic
dissipation of materials is inherently weak in this regime. Here we present a thin-film …

Honeycomb structures, inspired from bee honeycombs, had found widespread applications
in various fields, including architecture, transportation, mechanical engineering, chemical …

This definitive guide covers the design and application of absorbers and diffusers in
acoustics. Surface diffusion is a relatively young subject area, and diffuser design …