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 …

Causality of linear time-invariant systems inherently defines the wave-matter interaction
process in wave physics. This principle imposes strict constraints on the interfacial response …

Helmholtz resonator (HR) is an elementary resonating structure predominantly used for
acoustic wave manipulation. The sound absorption capabilities of HR are well examined …

We propose a perforated metastructure combining fish-belly panels and a corrugated
sandwich structure for broadband sound absorption. The curved panels provide a new …

We propose a novel class of acoustic metamaterial for low-frequency broadband sound
absorption with high efficiency. The design principle is physically decoupled into low …

The advent of the acoustic metasurfaces offered an unprecedented expansion of our ability
to manipulate and structure sound waves for many exotic functionalities. However, the …

The design of low-frequency sound absorbers with broadband absorption characteristics
and optimized dimensions is a pressing research problem in engineering acoustics. In this …

Achieving broadband sound absorption in two-port open ducts is of fundamental importance
in the acoustics, with wide applications ranging from noise control to duct sound mitigation …

In this work, a hybrid acoustic material (HAM) is designed for broadband and low-frequency
sound absorption based on the combination of two different materials: a porous layer …

A technique is implemented for achieving the multiband terahertz (THz) absorption with high-
quality factor in an absorber containing an ultrathin silicon resonator. The symmetrical …