Results 11 to 20 of about 5,453 (264)
Acoustic suppressed topological refraction in valley sonic crystals
New Journal of Physics, 2022 We report both experimentally and numerically that an acoustic suppressed topological refraction is realized by two kagome-lattice valley sonic crystals (VSCs).
Bing-bing Wang +4 more
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Pseudospin-dependent Acoustic Topological Insulator by Sonic Crystals With Same Hexagonal Rods
Frontiers in Physics, 2021 We report the experimental and numerical realization of a pseudospin-dependent acoustic topological insulator based on two sonic crystals constructed by the same regular hexagonal rods.
Ding Jia +7 more
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Dirac points and the transition towards Weyl points in three-dimensional sonic crystals
Light: Science & Applications, 2020 Acoustic metamaterials: Exotic sonic surface states and their transition The realization of exotic surface states in an acoustic metamaterial opens the door to new ways of manipulating sound waves.
Boyang Xie +5 more
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Archives of Acoustics, 2023 Sound insulation of the finite double-panel structure (DPS) inserted with a cylindrical shell array is investigated by varying the sound incidence direction to improve its applicability.
Myong-Jin KIM, Song-Hun KIM
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Nondiffractive propagation in sonic crystals [PDF]
The Journal of the Acoustical Society of America, 2006 Sonic crystals are media with a periodic modulation of the acoustic parameters, such as the density and the bulk modulus. They have recently attracted a great interest, because of their potential applications in the control of sound propagation, used as reflectors, focusers, or waveguides. All these properties are related with the dispersion introduced
Victor J. Sanchez-Morcillo +4 more
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Valley vortex states in sonic crystals
2016 Progress in Electromagnetic Research Symposium (PIERS), 2016 Valleytronics is quickly emerging as an exciting field in fundamental and applied research. In this Letter, we study the acoustic version of valley states in sonic crystals and reveal a vortex nature of such states. Besides the selection rules established for exciting valley polarized states, a mimicked spin Hall effect of sound is proposed further ...
Lu, Jiuyang +3 more
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Nihon Kikai Gakkai ronbunshu, 2015 Various soundproof wall have been developed for noise reduction. This paper experimentally investigated the performance of broad band noise reduction by pseudo periodic soundproof forest by placing trees on the shape of Penrose tile.
Yuichi MATSUMURA +2 more
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3D sound wave focusing by 2D internal periodic structure of 3D external cuboid shape
Results in Physics, 2019 In this work, we report the focusing effect of a 2D sonic crystal cuboid. The proposed sonic composite lens is vertically extended from a 2-D flat Phononic Crystal Structure, but it is found to be able to focus waves in a three-dimensional manner.
S. Castiñeira-Ibáñez +5 more
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Acoustical routing based on diffraction inhibition in two-dimensional sonic crystal
Applied Physics Express, 2023 Routing and guiding acoustic waves without diffraction broadening and backscattering losses is of great interest to the acoustic community. Here, we propose a diffraction-immune acoustical waveguide based on diffraction inhibition in 2D sonic crystals ...
Zhang Ting +4 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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