Mechanical metamaterials and phononic crystals enable localizing, focusing, and guiding of
elastic or acoustic waves in various ways. Here, we describe the physical mechanisms …

The coupling of waves between the piezoelectric generators, detectors, and propagating
media is challenging due to mismatch in the acoustic properties. The mismatch leads to the …

In this work, we design and test a parameter optimization method by Python script to meet
the urgent demand for lightweight honeycomb metamaterial. The method mainly focuses on …

Acoustic energy is a type of environmental energy source that can be scavenged and
converted into electrical energy for small-scale power applications. In general, incident …

In the past two decades, the research on acoustic metamaterials has flourished, which is
also benefited from the development of additive manufacturing technology. The exotic …

Owing to a steep rise in urban population, there has been a continuous growth in
construction of buildings, public or private transport like cars, motorbikes, trains, and planes …

Metalens, a two-dimensional planar system composed of strategically engineered
subwavelength structures, facilitates precise manipulation in the process of both light and …

Metaconcrete and meta-truss bar are a new type of material and structure with extraordinary
characteristics that cannot be found in nature. Metamaterials/metastructures possess the …

The paper presents an integrated analytical, numerical and experimental study on a kind of
one-dimensional finite aperiodic metastructure, with mass-in-mass unit cells optimized for …

Acoustic Luneburg lens (ALL) is a spherically/circularly symmetric gradient refractive index
lens, whose index varies smoothly from the outer surface to the centre. The variation of the …