Results 1 to 10 of about 2,673 (256)

An Auditory Illusion of Proximity of the Source Induced by Sonic Crystals. [PDF]

open access: yesPLoS ONE, 2015
In this work we report an illusion of proximity of a sound source created by a sonic crystal placed between the source and a listener. This effect seems, at first, paradoxical to naïve listeners since the sonic crystal is an obstacle formed by almost ...
Ignacio Spiousas   +4 more
doaj   +6 more sources

Sonic and Photonic Crystals [PDF]

open access: yesCrystals, 2020
Sonic/phononic crystals named acoustic/sonic band gap media are the elastic analogues of photonic crystals and have received renewed attention recently in many acoustic applications [...]
Lien-Wen Chen, Jia-Yi Yeh
doaj   +4 more sources

Dimensional hierarchy of higher-order topology in three-dimensional sonic crystals [PDF]

open access: yesNature Communications, 2019
Here, the authors report the experimental discovery of such a dimensional hierarchy of the topologically-protected 2D surface states, 1D hinge states and 0D corner states in a single 3D acoustic system by using higher-order topological sonic crystals.
Xiujuan Zhang   +7 more
doaj   +2 more sources

Dirac points and the transition towards Weyl points in three-dimensional sonic crystals [PDF]

open access: yesLight: 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
doaj   +2 more sources

Observation of Emergent Dirac Physics at the Surfaces of Acoustic Higher‐Order Topological Insulators [PDF]

open access: yesAdvanced Science, 2022
Using 3D sonic crystals as acoustic higher‐order topological insulators (HOTIs), 2D surface states described by spin‐1 Dirac equations at the interfaces between the two sonic crystals with distinct topology but the same crystalline symmetry are ...
Fei Meng   +8 more
doaj   +2 more sources

Acoustic extraordinary refraction in layered sonic crystals with periodic slits

open access: yesResults in Physics, 2016
In this paper, we present a study of acoustic wave propagation in layered sonic crystals (SCs) with periodic slits, and demonstrate the extraordinary acoustic refractions induced by acoustic backward and forward wave effects in SCs.
Wencheng Li   +3 more
doaj   +3 more sources

Parametric Optimization of Local Resonant Sonic Crystals Window on Noise Attenuation by Using Taguchi Method and ANOVA Analysis

open access: yesCrystals, 2022
Local resonant sonic crystals (LRSCs) window as a novel design has recently been proposed to achieve a good balance between noise mitigation, natural ventilation and natural lighting.
Hsiao Mun Lee   +3 more
doaj   +3 more sources

Broadband Transmission Loss Using the Overlap of Resonances in 3D Sonic Crystals

open access: yesCrystals, 2016
The acoustic properties of a three-dimensional sonic crystal made of square-rod rigid scatterers incorporating a periodic arrangement of quarter wavelength resonators are theoretically and experimentally reported in this work.
Alexandre Lardeau   +2 more
doaj   +3 more sources

Pseudospin-dependent Acoustic Topological Insulator by Sonic Crystals With Same Hexagonal Rods

open access: yesFrontiers 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
doaj   +1 more source

Acoustical routing based on diffraction inhibition in two-dimensional sonic crystal

open access: yesApplied 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
doaj   +1 more source

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