Phononic Coupled-Resonator Waveguide Micro-Cavities

Wang, Tingting; Bargiel, Sylwester; Lardet‐Vieudrin, F.; Wang, Yanfeng; Laude, Vincent

doi:10.3390/app10196751

Cited by 12 publications

(5 citation statements)

References 21 publications

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“…The weak coupling between neighboring resonators via evanescent Bloch waves yields the nearest-neighbor tight-binding approximation usually found in solid-state physics [35]. This description is similar to the one for optical coupled resonators [36], [37], acoustical [34], [38]- [43], and phononic waveguides [44]- [46]. The following nearest-neighbor TB Hamiltonian can describe the model depicted in Figure 1:…”

Section: Resultsmentioning

confidence: 62%

Underwater analyte sensing using a phononic crystal waveguide-based interferometric acoustic spectrometer

Reyes,

Heo,

Martínez-Argüello

et al. 2024

IEEE Open J. Ultrason., Ferroelect., Freq. Contr.

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This work introduces a 2D PnC-based acoustic spectrometer capable of analyzing small solution volumes (25 μl) in aqueous environments with significative accuracy and reliability, thus addressing key limitations in current acoustic spectroscopic techniques. Optimally introducing rows of defects into the PnC structure enables guided acoustic modes to propagate at desired frequencies within the bandgap. We construct an acoustic interferometer to leverage the properties of acoustic cavities within these waveguides, which can configure and modulate wave propagation. Our approach involves harnessing the interference between acoustic waves in the two arms of a defects-based waveguide within a PnC, one arm containing an analyte cavityholder. We demonstrate that the presence of an analyte (sucrose solutions at various concentrations) induces alterations in the acoustic properties of the cavity, leading to observable shifts in transmission characteristics of the propagating acoustic modes. We achieve exceptional spectral resolution through experimentation, facilitating highly sensitive acoustic sensing even with small analyte volumes (< 25 μl). We utilize finite element method simulations to validate our findings and predict spectral shifts resulting from modified acoustic interference. Additionally, we provide a phenomenological description using tight-binding models. Notably, our approach surpasses conventional PnC sensors like Mach-Zehnder interferometers by overcoming challenges associated with analyte uniformity.

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Section: Resultsmentioning

confidence: 62%

Underwater analyte sensing using a phononic crystal waveguide-based interferometric acoustic spectrometer

Reyes,

Heo,

Martínez-Argüello

et al. 2024

IEEE Open J. Ultrason., Ferroelect., Freq. Contr.

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“…The weak coupling between neighboring resonators, via evanescent Bloch waves, yields the nearest-neighbor tight-binding approximation usually found in solid state physics. [29] Note that this description is the same found in the coupled-resonator optical, [30,31] acoustical, [3,5,11,12,32,33] and elastic [7,13,15,16,34,35] waveguides. Panels c) and d) in Figure 5, show a schematic of the tight-binding model of the corresponding system defined by the red and blue dots for the diagonal and horizontal model, respectively.…”

Section: Tight Binding Modelmentioning

confidence: 81%

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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“…115,116 Fast mapping experiments enabled by LDV also greatly facilitate the investigation of collective dynamics encountered in nano-and micro-mechanical arrays. 117,118 Despite its advantages, LDV is limited to relatively low frequencies compared to other sensing techniques such as cavity optomechanics or Brillouin light scattering. The frequency demodulation of a heterodyne signal remains limited by the laser spot size, 113 although recent progress in modal analysis has allowed for an increase in the limit demodulation frequency.…”

Section: Brillouin Light Scatteringmentioning

confidence: 99%

“…115,116 Fast mapping experiments enabled by LDV also greatly facilitate the investigation of collective dynamics encountered in nano- and micro-mechanical arrays. 117,118…”

Section: Excitation and Detection Techniquesmentioning

confidence: 99%