Results 31 to 40 of about 4,136 (218)
Simultaneous Existence of Phononic and Photonic Band Gaps in Phoxonic Crystal Slabs [PDF]
, 2010 We discuss the simultaneous existence of phononic and photonic band gaps in a periodic array of holes drilled in a Si membrane. We investigate in detail both the centered square lattice and the boron nitride (BN) lattice with two atoms per unit cell ...
Papanikolaou, N. +30 more
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Tailoring 2D phononic crystal sensor properties by lattice symmerty reduction [PDF]
, 2010 We propose a novel method of tailoring the band structure of 2D phononic crystals (PnC) by reducing the lattice symmetry. Specifically, symmetry reduction by stretching and distorting the crystal face is explored. The transmission spectrum of the PnC was
Lucklum, Ralf, Li, J., Zubtsov, Mikhail
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Tunable Topological Phononic Crystals [PDF]
Physical Review Applied, 2016 Topological insulators, first observed in electronic systems, have inspired many analogues in photonic and phononic crystals in which remarkable one-way propagation edge states are supported by topologically nontrivial bandgaps. Such bandgaps can be achieved by breaking the time-reversal symmetry to lift the degeneracy associated with Dirac cones at ...
Chen, Zeguo, Wu, Ying
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Dirac Cone Characteristics of Hexachiral Phononic Crystal
Shanghai Jiaotong Daxue xuebao, 2021 The band structure properties of phononic crystal is important to evaluate the vibration and noise reduction of acoustic metamaterials. Taking the 2D hexachiral phononic crystal as an example, the band structure and Dirac cone properties were ...
CHEN Luyun, WANG Jian, CUI Yifeng, KONG Hui
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Scientific Reports, 2022 Ultra-sensitive greenhouse gas sensors for CO2, N2O, and CH4 gases based on Fano resonance modes have been observed through periodic and quasi-periodic phononic crystal structures.
Shrouk E. Zaki, Mohamed A. Basyooni
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Electrostatically Induced Phononic Crystal [PDF]
Physical Review Applied, 2019 The possibility of realizing an electrostatically induced phononic crystal is investigated numerically in an acoustic waveguide based on a graphene sheet that is suspended over periodically arrayed electrodes. The application of dc voltage to these electrodes exerts electrostatic force on the graphene and this results in the periodic formation of ...
Hatanaka, Daiki +2 more
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Simulation of film bulk acoustic resonator based on two-dimensional phononic crystals
物联网学报, 2022 A new structure of film bulk acoustic resonator (FBAR) based on phononic crystal (PnC) was proposed.The phononic crystal was used as the acoustic reflection layer at the bottom of the bulk acoustic wave resonator, which has the characteristics of high ...
Linhao SHI +5 more
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Design of Graphene Phononic Crystals for Heat Phonon Engineering [PDF]
Micromachines, 2020 Controlling the heat transport and thermal conductivity through a material is of prime importance for thermoelectric applications. Phononic crystals, which are a nanostructured array of specially designed pores, can suppress heat transportation owing to the phonon wave interference, resulting in bandgap formation in their band structure.
Haque Mayeesha Masrura +7 more
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Numeric Modeling of Phononic Crystal with Time-Dependent Properties [PDF]
, 2021 The research is devoted to numeric modeling of phononic crystals with time-depended properties of periodic structure. There are many works describing phononic crystal with a tunable bandgap.
Baloshin, Yu., Demin, A., Damdinov, B.
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Tunable guided waves in a soft phononic crystal with a line defect
APL Materials, 2021 Defects in phononic crystals may induce localized states and therefore can serve as microcavities, waveguides, or perfect mirrors. In this article, we numerically and experimentally investigate the deformation behavior and wave propagation ...
Yueting Wang +5 more
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