Acoustic resonances in non-Hermitian open systems
Acoustic resonances in open systems, which are usually associated with resonant modes
characterized by complex eigenfrequencies, play a fundamental role in manipulating …
characterized by complex eigenfrequencies, play a fundamental role in manipulating …
Sound trapping in an open resonator
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 …
importance for acoustic devices requiring high intensity and hypersensitivity in biological …
Observation of degenerate zero-energy topological states at disclinations in an acoustic lattice
Building upon the bulk-boundary correspondence in topological phases of matter,
disclinations have recently been harnessed to trap fractionally quantized density of states …
disclinations have recently been harnessed to trap fractionally quantized density of states …
Observation of the geometry-dependent skin effect and dynamical degeneracy splitting
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 …
manifests as the anomalous localization of bulk states at the boundary. To understand the …
Spinful Topological Phases in Acoustic Crystals with Projective Symmetry
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 …
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 …
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
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 …
while keeping its symmetry, a topological phase transition usually occurs. A common model …
Acoustofluidic virus isolation via bessel beam excitation separation technology
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 …
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
We study theoretically and experimentally the acoustic Purcell effect induced by quasi-
bound states in the continuum (quasiBICs). A theoretical framework describing the acoustic …
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 …
when the emitted wave is omnidirectional. However, the development of omnidirectional …