Temperature-controlled elastic wave transport in topological ferroelectric phononic crystal plates

Chen, Zhenyu; Zhou, Weijian

doi:10.1016/j.ijmecsci.2022.107964

Cited by 26 publications

(8 citation statements)

References 56 publications

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“…Here, the TESs linked with topological PnCs (TPnCs) were examined, and their design and significance were discussed. A TPnC structure is characterised by its ability to exhibit robust and stable wave transmission properties, even in the presence of imperfections 44,46,47,71 . TPnCs utilise topological invariants to define their distinct features, in contrast to typical PnCs that rely on structural periodicity 44,47,71,72 .…”

Section: Topological Edge State (Tes) Of Pnc Structurementioning

confidence: 99%

“…The crystalline arrangement, often resembling dimers or other periodic structures, enables the emergence of topologically protected edge states. The topological insulators in electronic systems are used as an inspiration for the design ideas 44,47,71,73 . Researchers engineer TPnCs by defining topological invariants, such as the Zak phase, capturing the wave propagation properties within the crystal lattice.…”

Section: Topological Edge State (Tes) Of Pnc Structurementioning

confidence: 99%

“…Researchers engineer TPnCs by defining topological invariants, such as the Zak phase, capturing the wave propagation properties within the crystal lattice. Stable subwavelength crystals may be produced using this design, which is essential for preserving strong wave transmission properties 44,47,71,[74][75][76] .…”

Section: Topological Edge State (Tes) Of Pnc Structurementioning

confidence: 99%

“…Resonance modes are created by the interaction of resonators, which adds to the unique properties of TPnCs. TESs represent localised vibrational or electronic modes occurring at the edges or interfaces of TPnCs 44,47,71,77 . These states are topologically protected states.…”

Section: Topological Edge State (Tes) Of Pnc Structurementioning

confidence: 99%

“…TESs have demonstrated significant potential in various acoustic applications, including energy harvesting, acoustic focusing and noise control, owing to their selective excitation within the band gap. TPCs and TES exhibit remarkable stability against deformations and imperfections, ensuring reliable and resilient wave transmission properties 44,46,47,71,74,75,78,79 . The topologically protected edge states offer selective excitation within the band gap, allowing for tailored applications in wave manipulation.…”

Section: Topological Edge State (Tes) Of Pnc Structurementioning

confidence: 99%

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Fano resonance in one-dimensional quasiperiodic topological phononic crystals towards a stable and high-performance sensing tool

Almawgani,

Makhlouf Fathy,

E. Alfassam

et al. 2024

Sci Rep

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Phononic crystals (PnCs) emerge as an innovative sensor technology, especially for high-performance sensing applications. This study strives to advance this field by developing new designs of PnC structures that exhibit stability in the face of construction imperfections and deformations, focusing on the evolution of topological PnCs (TPnCs). These designs could be promising to overcome the problem of instability involved in most of the theoretical PnC sensors when they emerge in experimental verification. In particular, the fabrication process of any design could collide with some fluctuations in controlling the size of each component. Thus, Fano resonance is introduced through a one-dimensional (1D) quasiperiodic TPnC. To the best of the author’s knowledge, this study is the first to observe Fano modes in liquid cavities through 1D PnCs. Various quasiperiodic PnC designs are employed to detect the temperature of alcohols (specifically propanol) across an extensive temperature range (160–240 °C). The effects of many geometrical parameters on the sensor stability, such as material thicknesses, are studied. Numerical findings demonstrated that the designed quasiperiodic topological PnCs based on Fibonacci sequence of the second order proved superior performance. This sensing tool provides sensitivity, quality factor and figure-of-merit values of 104,533.33 Hz/°C, 223.69 and 0.5221 (/°C), respectively, through temperature detection of propanol in the range of 160–240 °C.

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Section: Topological Edge State (Tes) Of Pnc Structurementioning

confidence: 99%

Section: Topological Edge State (Tes) Of Pnc Structurementioning

confidence: 99%

Section: Topological Edge State (Tes) Of Pnc Structurementioning

confidence: 99%

Section: Topological Edge State (Tes) Of Pnc Structurementioning

confidence: 99%

Section: Topological Edge State (Tes) Of Pnc Structurementioning

confidence: 99%

See 3 more Smart Citations

Fano resonance in one-dimensional quasiperiodic topological phononic crystals towards a stable and high-performance sensing tool

Almawgani,

Makhlouf Fathy,

E. Alfassam

et al. 2024

Sci Rep

View full text Add to dashboard Cite

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On Klein tunneling of low-frequency elastic waves in hexagonal topological plates

Yao,

Ma,

Hong

et al. 2024

Appl. Math. Mech.-Engl. Ed.

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Incident particles in the Klein tunnel phenomenon in quantum mechanics can pass a very high potential barrier. Introducing the concept of tunneling into the analysis of phononic crystals can broaden the application prospects. In this study, the structure of the unit cell is designed, and the low frequency (< 1 kHz) valley locked waveguide is realized through the creation of a phononic crystal plate with a topological phase transition interface. The defect immunity of the topological waveguide is verified, that is, the wave can propagate along the original path in the cases of impurities and disorder. Then, the tunneling phenomenon is introduced into the topological valley-locked waveguide to analyze the wave propagation, and its potential applications (such as signal separators and logic gates) are further explored by designing phononic crystal plates. This research has broad application prospects in information processing and vibration control, and potential applications in other directions are also worth exploring.

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Viaduct-Like Phononic Crystal Beams with Point Elastic Supports for Robust Transverse Wave Transport

Chen,

Wang,

Guo

2024

J. Vib. Eng. Technol.

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Temperature-controlled elastic wave transport in topological ferroelectric phononic crystal plates

Cited by 26 publications

References 56 publications

Fano resonance in one-dimensional quasiperiodic topological phononic crystals towards a stable and high-performance sensing tool

Fano resonance in one-dimensional quasiperiodic topological phononic crystals towards a stable and high-performance sensing tool

On Klein tunneling of low-frequency elastic waves in hexagonal topological plates

Viaduct-Like Phononic Crystal Beams with Point Elastic Supports for Robust Transverse Wave Transport

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