Acoustic metamaterials: From local resonances to broad horizons

G Ma, P Sheng - Science advances, 2016 - science.org
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 …

[HTML][HTML] Active times for acoustic metamaterials

F Zangeneh-Nejad, R Fleury - Reviews in Physics, 2019 - Elsevier
Initially proposed to achieve strong noise isolation levels beyond the mass-density law,
acoustic metamaterials (AMMs) have now overturned the conventional views in all aspects …

Recent advances in acoustic metamaterials for simultaneous sound attenuation and air ventilation performances

S Kumar, HP Lee - Crystals, 2020 - mdpi.com
In the past two decades, acoustic metamaterials have garnered much attention owing to
their unique functional characteristics, which are difficult to find in naturally available …

Acoustic cloaking by a near-zero-index phononic crystal

LY Zheng, Y Wu, X Ni, ZG Chen, MH Lu… - Applied Physics …, 2014 - pubs.aip.org
Zero-refractive-index materials may lead to promising applications in various fields. Here,
we design and fabricate a near Zero-Refractive-Index (ZRI) material using a phononic …

Electromagnetic impurity-immunity induced by parity-time symmetry

J Luo, J Li, Y Lai - Physical Review X, 2018 - APS
Impurities usually play an important role in modifying the bulk properties of electronic or
electromagnetic materials. In this work, we demonstrate a way to break this discipline and …

Three-dimensional acoustic double-zero-index medium with a fourfold degenerate Dirac-like point

C Xu, G Ma, ZG Chen, J Luo, J Shi, Y Lai, Y Wu - Physical Review Letters, 2020 - APS
We report the first realization of a three-dimensional (3D) acoustic double-zero-index
medium (DZIM) made of a cubic lattice of metal rods. While the past decade has seen …

Coherent perfect absorption via photonic doping of zero‐index media

J Luo, B Liu, ZH Hang, Y Lai - Laser & Photonics Reviews, 2018 - Wiley Online Library
Coherent perfect absorption, as time‐reversed lasing, is achieved via appropriate
interference of waves in absorbers and provides attractive opportunities for flexible control of …

A semi-Dirac point and an electromagnetic topological transition in a dielectric photonic crystal

Y Wu - Optics express, 2014 - opg.optica.org
Accidental degeneracy in a photonic crystal consisting of a square array of elliptical
dielectric cylinders leads to both a semi-Dirac point at the center of the Brillouin zone and an …

Arbitrary control of electromagnetic flux in inhomogeneous anisotropic media with near-zero index

J Luo, WX Lu, ZH Hang, HY Chen, B Hou, Y Lai… - Physical review …, 2014 - APS
We propose a method to control electromagnetic flux in an almost arbitrary way in
wavelength and subwavelength scales. The capability of subwavelength flux control is …

Multilevel structural defects-induced elastic wave tunability and localization of a tensegrity metamaterial

LY Zhang, X Yin, J Yang, A Li, GK Xu - Composites Science and …, 2021 - Elsevier
Defects are generally inevitable when fabricating the constituent structures of tensegrity
metamaterials. How structural defects affect the mechanical properties of such …