3D Single-port Labyrinthine Acoustic Metamaterial
arXiv:1608.04599 · doi:10.1103/PhysRevApplied.6.064025
Abstract
In this paper, we report on the design, fabrication, and experimental characterization of a 3D single-port labyrinthine acoustic metamaterial. By using curled perforations with one end closed and with appropriate loss inside, the proposed metamaterial can perfectly absorb airborne sounds in a low frequency band. Both the position and width of the band can be tuned flexibly. A tradeoff is uncovered between the relative absorption bandwidth and thickness of the metamaterial. When the relative absorption bandwidth is as high as 51%, the requirement of deep subwavelength thickness (0.07λ) can still be satisfied.
arXiv comment5 pages and 3 figures
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Cited by in corpus (7)
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- Ultra-open High-efficiency Ventilated Metamaterial Absorbers with Customized Broadband Performance
- Perfect absorption in mirror-symmetric acoustic metascreens
- Wide tailorability of sound absorption using acoustic metamaterials
- Absorption characteristics of large acoustic metasurfaces
- Real-time-controlled artificial quiet channel for acoustic cloaking under varying detection conditions