Source Themes

Creating synthetic spaces for higher-order topological sound transport
Modern technological advances allow for the study of systems with additional synthetic dimensions. Higher-order topological insulators …
Hui Chen, Hongkuan Zhang, Qian Wu (吳謙), Yu Huang, Huy Nguyen, Emil Prodan, Xiaoming Zhou, Guoliang Huang
PDF Cite
Creating synthetic spaces for higher-order topological sound transport
A broadband acoustic panel based on double-layer membrane-type metamaterials
Low-frequency noise is a growing problem in large structures of modern transportation technologies. In this study, we report a …
Huy Nguyen, Qian Wu (吳謙), Jiaji Chen, Yukai Yu, Hui Chen, Sharon Tracy, Guoliang Huang
PDF Cite
A broadband acoustic panel based on double-layer membrane-type metamaterials
A Fano-based acoustic metamaterial for ultra-broadband sound barriers
Ultra-broadband sound reduction schemes covering living and working noise spectra are of high scientific and industrial significance. …
Huy Nguyen, Qian Wu (吳謙), Hui Chen, Jiaji Chen, Yukai Yu, Sharon Tracy, Guoliang Huang
PDF Cite
A Fano-based acoustic metamaterial for ultra-broadband sound barriers
Physical rendering of synthetic spaces for topological sound transport
Synthetic dimensions can be rendered in the physical space and this has been achieved with photonics and cold atomic gases, however, …
Hui Chen, Hongkuan Zhang, Qian Wu (吳謙), Yu Huang, Huy Nguyen, Emil Prodan, Xiaoming Zhou, Guoliang Huang
PDF Dataset Poster Video Source Document
Physical rendering of synthetic spaces for topological sound transport
Physical observation of a robust acoustic pumping in waveguides with dynamic boundary
First experimental realization of a robust topological pumping in a spatiotemporally modulated acoustic waveguide, purely mechanically driven.
Xianchen Xu, Qian Wu (吳謙), Hui Chen, Hussein Nassar, Yangyang Chen, Andrew Norris, Michael R Haberman, Guoliang Huang
PDF Cite
Physical observation of a robust acoustic pumping in waveguides with dynamic boundary
Non-reciprocal Rayleigh wave propagation in space--time modulated surface
Realization of harmonic and mode conversion for Rayleigh waves on a space-time modulated surface.
Qian Wu (吳謙), Hui Chen, Hussein Nassar, Guoliang Huang
PDF Cite
Non-reciprocal Rayleigh wave propagation in space--time modulated surface
Broadband acoustic silencer with ventilation based on slit-type Helmholtz resonators
Recently, sound attenuation with ventilation is highly needed in many practical applications. In this study, we report on a …
Huy Nguyen, Qian Wu (吳謙), Xianchen Xu, Hui Chen, Sharon Tracy, Guoliang Huang
PDF Cite
Broadband acoustic silencer with ventilation based on slit-type Helmholtz resonators
Channel-Coupling Fano Resonance and Acoustic Metadamping
Fano resonance featuring asymmetric spectral profiles originates from the interference of local resonances and background continuum. …
Huy Nguyen, Qian Wu (吳謙), Hui Chen, Guoliang Huang
PDF Dataset Poster Video Source Document
Channel-Coupling Fano Resonance and Acoustic Metadamping
In-Plane Second-Order Topologically Protected States in Elastic Kagome Lattices
Second-order topological insulators, which exhibit capability of hosting topologically protected zero-dimensional corner states …
Qian Wu (吳謙), Hui Chen, Xiaopeng Li, Guoliang Huang
PDF Cite
In-Plane Second-Order Topologically Protected States in Elastic Kagome Lattices
Asymmetric scattering of flexural waves in a parity-time symmetric metamaterial beam
Non-Hermitian parity-time (PT) symmetric systems that possess real eigenvalues have been intensively investigated in quantum mechanics …
Qian Wu (吳謙), Yangyang Chen, Guoliang Huang
PDF Cite
Asymmetric scattering of flexural waves in a parity-time symmetric metamaterial beam