Acoustic metamaterials (AMs), which are materials composed of subwavelength periodic
artificial structures with specific designs, have drawn significant research attention. This is …

The effective operation of certain electronic, medical, industrial, and testing equipment relies
on high-quality focusing and imaging capability, which also plays a vital role in the field of …

We present a theoretical and experimental realization of a thin multi-unit metasurface with
multi-order sound absorption that exhibits a continuous near-perfect absorption spectrum in …

We report both experimentally and numerically that a broadband acoustic lens with
asymmetric focusing is realized by dual-layer metasurfaces in air. The acoustic waves can …

The thermal problems closely related to the development of human life, scientific technology
and engineering production are greatly influenced by the thermal properties of carrier …

We propose a nonresonant single-phase meta-slab with subunits of graded thicknesses for
deflecting incident flexural waves. Analytic solutions of the transmission coefficient and the …

Metamaterial absorbers have recently been developed to act as efficient sound absorption
components of subwavelength dimensions. However, the working frequency has so far been …

The simplest and most commonly used acoustic levitator is comprised of a transmitter and
an opposing reflecting surface. This type of device, however, is only able to levitate objects …

We have analytically proposed a mechanism for achieving a perfect absorber by a modulus-
near-zero (MNZ) metamaterial with a properly decorated imaginary part, in which the perfect …

We theoretically and experimentally present the asymmetric acoustic transmission
phenomenon in a lossy gradient-index metasurface (GIM). The lossy GIM design is a …