Nonreciprocal acoustic transmission in space-time modulated coupled resonators

Chen Shen; Xiaohui Zhu; Junfei Li; Steven A. Cummer

doi:10.1103/PhysRevB.100.054302

Nonreciprocal acoustic transmission in space-time modulated coupled resonators

Chen Shen, Xiaohui Zhu, Junfei Li, Steven A. Cummer

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

Systems that break reciprocity offer new possibilities for controlling wave propagation. Here we study the scattering properties of coupled resonator systems that are under dynamic modulation. Strong linear nonreciprocal transmission is manifested in the acoustic regime by introducing an initial spatial phase bias to the space-time modulated coupled resonators. A theoretical model is developed to characterize the system and the results are in good agreement with experimental observations. Our work opens up new opportunities for designing compact nonreciprocal devices and developing acoustic topological insulators.

Original language	English (US)
Article number	054302
Journal	Physical Review B
Volume	100
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevB.100.054302
State	Published - Aug 6 2019
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.100.054302

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title = "Nonreciprocal acoustic transmission in space-time modulated coupled resonators",

abstract = "Systems that break reciprocity offer new possibilities for controlling wave propagation. Here we study the scattering properties of coupled resonator systems that are under dynamic modulation. Strong linear nonreciprocal transmission is manifested in the acoustic regime by introducing an initial spatial phase bias to the space-time modulated coupled resonators. A theoretical model is developed to characterize the system and the results are in good agreement with experimental observations. Our work opens up new opportunities for designing compact nonreciprocal devices and developing acoustic topological insulators.",

author = "Chen Shen and Xiaohui Zhu and Junfei Li and Cummer, {Steven A.}",

note = "Funding Information: This work was supported by a Multidisciplinary University Research Initiative grant from the Office of Naval Research (Grant No. N00014-13-1-0631) and an Emerging Frontiers in Research and Innovation grant from the National Science Foundation (Grant No. 1641084). Publisher Copyright: {\textcopyright} 2019 American Physical Society.",

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AU - Shen, Chen

AU - Zhu, Xiaohui

AU - Li, Junfei

AU - Cummer, Steven A.

N1 - Funding Information: This work was supported by a Multidisciplinary University Research Initiative grant from the Office of Naval Research (Grant No. N00014-13-1-0631) and an Emerging Frontiers in Research and Innovation grant from the National Science Foundation (Grant No. 1641084). Publisher Copyright: © 2019 American Physical Society.

PY - 2019/8/6

Y1 - 2019/8/6

N2 - Systems that break reciprocity offer new possibilities for controlling wave propagation. Here we study the scattering properties of coupled resonator systems that are under dynamic modulation. Strong linear nonreciprocal transmission is manifested in the acoustic regime by introducing an initial spatial phase bias to the space-time modulated coupled resonators. A theoretical model is developed to characterize the system and the results are in good agreement with experimental observations. Our work opens up new opportunities for designing compact nonreciprocal devices and developing acoustic topological insulators.

AB - Systems that break reciprocity offer new possibilities for controlling wave propagation. Here we study the scattering properties of coupled resonator systems that are under dynamic modulation. Strong linear nonreciprocal transmission is manifested in the acoustic regime by introducing an initial spatial phase bias to the space-time modulated coupled resonators. A theoretical model is developed to characterize the system and the results are in good agreement with experimental observations. Our work opens up new opportunities for designing compact nonreciprocal devices and developing acoustic topological insulators.

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Nonreciprocal acoustic transmission in space-time modulated coupled resonators

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