Tunable coupled-resonator acoustic waveguides based on defect resonance body

Ji, Huawei; Yang, Fan; Qi, An-qi; Xin, Wu; Lv, Bo; Ni, Jian

doi:10.1007/s00339-022-05703-w

Cited by 3 publications

(1 citation statement)

References 24 publications

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“…[7] The coupling of resonant modes in defect-based PnCs has been successfully described approximating these as Coupled Resonator Acoustic Waveguides (CRAWs) within the framework of tight-binding models (TBM). [8][9][10][11][12][13] TBM, widely employed in solid-state physics to study the electronic properties of materials, can be extended to investigate other exci+tations, such as phonons which represent the quantized vibrations of crystal lattices. [7,13] In this approach, a PnC-based CRAW is discretized into separate sites and the dynamics of phonons are described by considering the interactions between neighboring sites.…”

Section: Introductionmentioning

confidence: 99%

Coupled Resonator Acoustic Waveguides‐Based Acoustic Interferometers Designed within 2D Phononic Crystals: Experiment and Theory

Martínez‐Esquivel,

Méndez‐Sánchez,

Heo

et al. 2023

Advanced Physics Research

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The acoustic response of defect‐based acoustic interferometer‐like designs, known as Coupled Resonator Acoustic Waveguides (CRAWs), in 2D phononic crystals (PnCs) is reported. The PnC is composed of steel cylinders arranged in a square lattice within a water matrix with defects induced by selectively removing cylinders to create Mach‐Zehnder‐like (MZ) defect‐based interferometers. Two defect‐based acoustic interferometers of MZ‐type are fabricated, one with arms oriented horizontally and another one with arms oriented diagonally, and their transmission features are experimentally characterized using ultrasonic spectroscopy. The experimental data are compared with finite element method (FEM) simulations and with tight‐binding (TB) calculations in which each defect is treated as a resonator coupled to its neighboring ones. Significantly, the results exhibit excellent agreement indicating the reliability of the proposed approach. This comprehensive match is of paramount importance for accurately predicting and optimizing resonant modes supported by defect arrays, thus enabling the tailoring of phononic structures and defect‐based waveguides to meet specific requirements. This successful implementation of FEM and TB calculations in investigating CRAWs systems within PnCs paves the way for designing advanced acoustic devices with desired functionalities for various practical applications, demonstrating the application of solid‐state electronics principles to underwater acoustic devices description.

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Section: Introductionmentioning

confidence: 99%

Coupled Resonator Acoustic Waveguides‐Based Acoustic Interferometers Designed within 2D Phononic Crystals: Experiment and Theory

Martínez‐Esquivel,

Méndez‐Sánchez,

Heo

et al. 2023

Advanced Physics Research

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Attenuation of Lamb waves in coupled-resonator viscoelastic waveguide

Ma,

Guo,

Cui

et al. 2025

International Journal of Mechanical Sciences

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Reconfigurable frequency demultiplexer using coupled-resonator elastic waveguides

Cui,

Dong,

Wang

et al. 2024

Applied Physics Letters

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Reconfigurable coupled-resonator elastic waveguides are formed using defects composed of threaded rods, fixed with nuts and attached to a perforated two-dimensional phononic crystal slab. The resonant frequency of the defect can be tuned continuously within a complete phononic bandgap by adjusting the length of the threaded rod. Straight waveguides are formed from a line of defects. Phononic circuits are created by coupling three parallel straight waveguides. Through precise manipulation of the length of the threaded rod assembly, frequency demultiplexing of Lamb waves is achieved. Numerical and experimental results are found to be in good agreement. This work is of significance for the practical design of phononic devices including reconfigurable circuits.

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Tunable coupled-resonator acoustic waveguides based on defect resonance body

Cited by 3 publications

References 24 publications

Coupled Resonator Acoustic Waveguides‐Based Acoustic Interferometers Designed within 2D Phononic Crystals: Experiment and Theory

Coupled Resonator Acoustic Waveguides‐Based Acoustic Interferometers Designed within 2D Phononic Crystals: Experiment and Theory

Attenuation of Lamb waves in coupled-resonator viscoelastic waveguide

Reconfigurable frequency demultiplexer using coupled-resonator elastic waveguides

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