Tunable and active phononic crystals and metamaterials

YF Wang, YZ Wang, B Wu… - Applied …, 2020 - asmedigitalcollection.asme.org
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 …

Controlling sound with acoustic metamaterials

SA Cummer, J Christensen, A Alù - Nature Reviews Materials, 2016 - nature.com
Acoustic metamaterials can manipulate and control sound waves in ways that are not
possible in conventional materials. Metamaterials with zero, or even negative, refractive …

Recent progress in acoustic metamaterials and active piezoelectric acoustic metamaterials-a review

G Ji, J Huber - Applied Materials Today, 2022 - Elsevier
Acoustic metamaterials, structured to produce anomalous reflection and refraction indices
that are not found in conventional materials, are gaining prominence in engineering …

Dynamics of phononic materials and structures: Historical origins, recent progress, and future outlook

MI Hussein, MJ Leamy… - Applied …, 2014 - asmedigitalcollection.asme.org
The study of phononic materials and structures is an emerging discipline that lies at the
crossroads of vibration and acoustics engineering and condensed matter physics. Broadly …

An invisible acoustic sensor based on parity-time symmetry

R Fleury, D Sounas, A Alu - Nature communications, 2015 - nature.com
Sensing an incoming signal is typically associated with absorbing a portion of its energy,
inherently perturbing the measurement and creating reflections and shadows. Here, in …

From photonic crystals to seismic metamaterials: A review via phononic crystals and acoustic metamaterials

Muhammad, CW Lim - Archives of Computational Methods in Engineering, 2022 - Springer
The advancement in electromagnetic metamaterials, which commenced three decades ago,
experienced a rapid transformation into acoustic and elastic systems in the forms of …

A review of tunable acoustic metamaterials

S Chen, Y Fan, Q Fu, H Wu, Y **, J Zheng, F Zhang - Applied Sciences, 2018 - mdpi.com
Acoustic metamaterial science is an emerging field at the frontier of modern acoustics. It
provides a prominent platform for acoustic wave control in subwavelength-sized …

[HTML][HTML] Membrane-and plate-type acoustic metamaterials

TY Huang, C Shen, Y **g - The Journal of the Acoustical Society of …, 2016 - pubs.aip.org
Over the past decade there has been a great amount of research effort devoted to the topic
of acoustic metamaterials (AMMs). The recent development of AMMs has enlightened the …

A membrane-type acoustic metamaterial with adjustable acoustic properties

F Langfeldt, J Riecken, W Gleine… - Journal of Sound and …, 2016 - Elsevier
A new realization of a membrane-type acoustic metamaterial (MAM) with adjustable sound
transmission properties is presented. The proposed design distinguishes itself from other …

Active acoustic metamaterials with tunable effective mass density by gradient magnetic fields

X Chen, X Xu, S Ai, HS Chen, Y Pei, X Zhou - Applied Physics Letters, 2014 - pubs.aip.org
Magnetically controlled acoustic metamaterials are designed and experimentally studied.
Magneto-acoustic metamaterials are fabricated by covering an aluminum circular ring with …