Results 11 to 20 of about 991,692 (161)
Principles and properties of phononic crystal waveguides
APL Materials, 2021 Strongly confined waveguiding is one of the main applications of phononic crystals that can be achieved at any frequency and scale. Phononic crystal waveguides replace the cladding of classical homogeneous waveguides by a crystal possessing a complete ...
V. Laude
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Bloch wave deafness and modal conversion at a phononic crystal boundary [PDF]
AIP Advances, 2011 We investigate modal conversion at the boundary between a homogeneous incident medium and a phononic crystal, with consideration of the impact of symmetry on the excitation of Bloch waves. We give a quantitative criterion for the appearance of deaf Bloch
Vincent Laude +3 more
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Phononic crystal as a homogeneous viscous metamaterial
Physical Review Research, 2020 A homogenization theory, representing the low-frequency limit, is developed for a phononic crystal of cylinders embedded in a viscous fluid. The decay coefficient of sound due to viscosity is calculated analytically for any two-dimensional Bravais ...
M. Ibarias +3 more
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Theoretical Investigation of Magneto-Electro-Elastic Piezoelectric Phononic Crystal
Crystals, 2022 We design a magneto-electro-elastic piezoelectric phononic crystal (MPPC) using a one-dimensional piezoelectric superlattice (with a 3m point group) and split-ring resonators. The effect of the split-ring resonators is to enhance the piezoelectric effect
Wen-Chao Bai +7 more
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Birefringent phononic structures
AIP Advances, 2014 Within the framework of elastic anisotropy, caused in a phononic crystal due to low crystallographic symmetry, we adopt a model structure, already introduced in the case of photonic metamaterials, and by analogy, we study the effect of birefringence and ...
I. E. Psarobas +2 more
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Journal of Low Frequency Noise, Vibration and Active Control, 2023 Vibration and noise pollution is one of the main pollution in modern society. In order to obtain good vibration damping effect, more effective phononic crystals should be designed. Based on the theory of elastic wave propagation in solids, three types of
Rongjiang Tang +3 more
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An elastic fiber based on phononic crystals
Scientific Reports, 2021 In this study, a novel elastic phononic crystal fiber has been presented for the first time. This proposed structure can expand the sonic communications field, significantly. In order to realize the elastic fiber performance, solid–solid phononic crystal
Farzaneh Motaei, Ali Bahrami
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Archives of Mechanics, 2023 The chiral properties of chiral materials have a great influence on the wave propagation. Applying chiral materials to the design of phononic crystal rods not only increases the design space, but also may have other potential advantages.
P. Dai, R. Wang
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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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APL Materials, 2021 The size dependence of Young’s modulus and the critical pressure for phase transformation from the diamond structure at ambient pressure to a metallic β-Sn structure at high pressure was studied in a Si phononic crystal.
Masaki Fujikane +4 more
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