Acoustic resonances in non-Hermitian open systems

L Huang, S Huang, C Shen, S Yves… - Nature Reviews …, 2024 - nature.com
Acoustic resonances in open systems, which are usually associated with resonant modes
characterized by complex eigenfrequencies, play a fundamental role in manipulating …

Sound trapping in an open resonator

L Huang, YK Chiang, S Huang, C Shen, F Deng… - Nature …, 2021 - nature.com
The ability of sound energy confinement with high-quality factor resonance is of vital
importance for acoustic devices requiring high intensity and hypersensitivity in biological …

Observation of degenerate zero-energy topological states at disclinations in an acoustic lattice

Y Deng, WA Benalcazar, ZG Chen, M Oudich, G Ma… - Physical review …, 2022 - APS
Building upon the bulk-boundary correspondence in topological phases of matter,
disclinations have recently been harnessed to trap fractionally quantized density of states …

Observation of the geometry-dependent skin effect and dynamical degeneracy splitting

T Wan, K Zhang, J Li, Z Yang, Z Yang - Science Bulletin, 2023 - Elsevier
The non-Hermitian skin effect is a distinctive phenomenon in non-Hermitian systems, which
manifests as the anomalous localization of bulk states at the boundary. To understand the …

Spinful Topological Phases in Acoustic Crystals with Projective Symmetry

Y Meng, S Lin, B Shi, B Wei, L Yang, B Yan, Z Zhu… - Physical Review Letters, 2023 - APS
For the classification of topological phases of matter, an important consideration is whether a
system is spinless or spinful, as these two classes have distinct symmetry algebra that gives …

Acoustic metamaterial capsule for reduction of stage machinery noise

A Melnikov, M Maeder, N Friedrich… - The Journal of the …, 2020 - pubs.aip.org
Noise mitigation of stage machinery can be quite demanding and requires innovative
solutions. In this work, an acoustic metamaterial capsule is proposed to reduce the noise …

Su-Schrieffer-Heeger model inspired acoustic interface states and edge states

X Li, Y Meng, X Wu, S Yan, Y Huang, S Wang… - Applied Physics …, 2018 - pubs.aip.org
If a full bandgap closes and then reopens when we continuously deform a periodic system
while keeping its symmetry, a topological phase transition usually occurs. A common model …

Acoustofluidic virus isolation via bessel beam excitation separation technology

J Xia, Z Wang, R Becker, F Li, F Wei, S Yang, J Rich… - ACS …, 2024 - ACS Publications
The isolation of viruses from complex biological samples is essential for creating sensitive
bioassays that assess the efficacy and safety of viral therapeutics and vaccines, which have …

[HTML][HTML] Acoustic Purcell effect induced by quasibound state in the continuum

S Huang, S Xie, H Gao, T Hao, S Zhang, T Liu, Y Li… - Fundamental …, 2024 - Elsevier
We study theoretically and experimentally the acoustic Purcell effect induced by quasi-
bound states in the continuum (quasiBICs). A theoretical framework describing the acoustic …

Meta-ring for enhancing emission efficiency of omnidirectional SH waves

HJ Kim, CI Park, K Kim, YY Kim - International Journal of Mechanical …, 2023 - Elsevier
The intensity of a wave emitted by a transducer affects its performance critically, especially
when the emitted wave is omnidirectional. However, the development of omnidirectional …