Space-time wedges

A Bahrami, K De Kinder, Z Li, C Caloz - Nanophotonics, 2025 - degruyter.com
Abstract Space-time–modulated systems have attracted significant interest over the past
decade due to their ability to manipulate electromagnetic waves in unprecedented ways …

Quasinormal mode expansion in thin elastic plates

B Vial, M Martí Sabaté, R Wiltshaw, S Guenneau… - Physical Review B, 2024 - APS
Elastic wave manipulation using large arrays of resonators is driving the need for advanced
simulation and optimization methods. To address this we introduce and explore a robust …

[HTML][HTML] Tunable bandpass filters using a defective phononic crystal shunted to synthetic negative capacitance for longitudinal waves

SH Jo, M Park, M Kim, J Yang - Journal of Applied Physics, 2024 - pubs.aip.org
This study illustrates the successful achievement of tunable defect bands in one-
dimensional defective phononic crystals (PnCs) through the incorporation of piezoelectric …

An acoustic metamaterial with space-time modulated density

X Zhu, C Shen - The Journal of the Acoustical Society of America, 2024 - pubs.aip.org
Space-time modulation opens the door for unprecedented wave behavior control, such as
nonreciprocal wave manipulation. Here is proposed a one-dimensional space-time …

Nonreciprocal interaction and entanglement between two superconducting qubits

YM Ren, XF Pan, XY Yao, XW Huo, JC Zheng… - arXiv preprint arXiv …, 2024 - arxiv.org
Nonreciprocal interaction between two spatially separated subsystems plays a crucial role in
signal processing and quantum networks. Here, we propose an efficient scheme to achieve …

Nonreciprocal Phase Shifts in Spatiotemporally Modulated Systems

J Wu, B Yousefzadeh - arXiv preprint arXiv:2411.18734, 2024 - arxiv.org
Materials and devices subject to spatiotemporal modulation of their effective properties have
a demonstrated ability to support nonreciprocal transmission of waves. Most notably …

Immunity to Backscattering of Bulk Waves in Topological Acoustic Superlattices

PA Deymier, JO Vasseur, K Runge, A Khanikaev, A Alù - Crystals, 2024 - mdpi.com
We herein investigate the scattering of orthogonal counterpropagating waves and one-way
propagating bulk waves in discrete acoustic superlattices subjected to a scattering potential …

[HTML][HTML] Directional Acoustic Bulk Waves in a 2D Phononic Crystal

PA Deymier, JO Vasseur, K Runge, K Muralidharan… - Crystals, 2024 - mdpi.com
We used the transfer matrix method to investigate the conditions supporting the existence of
directional bulk waves in a two-dimensional (2D) phononic crystal. The 2D crystal was a …

Underwater acoustic non-reciprocal manipulation based on dynamic-modulation structures

Z Wen, J Yuan, Y Huang… - Journal of Applied …, 2024 - asmedigitalcollection.asme.org
Underwater acoustic non-reciprocal transmission via dynamic-modulation structures with
time-varying mass and stiffness is studied. The model system consists of spatiotemporally …

Platonic quasi-normal modes expansion

B Vial, MM Sabaté, R Wiltshaw, S Guenneau… - arXiv preprint arXiv …, 2024 - arxiv.org
Elastic wave manipulation using large arrays of resonators is driving the need for advanced
simulation and optimization methods. To address this we introduce and explore a robust …