Asymmetric acoustic transmission in an open channel based on multiple scattering mechanism
We report both experimentally and theoretically that asymmetric acoustic transmission is realized by an open channel with two triangle cavities of different sizes on each side immersed in air. This exotic phenomenon stems from asymmetric multiple scatterings induced by the triangle cavities, which is different from the previous devices based on acoustic metasurfaces. In addition, the influences of the temperature and machining inaccuracies on the asymmetric transmission effect are investigated in detail, and the asymmetric acoustic transmission still exists with the excitation of the cylindrical acoustic source. Our device is very simple and easy to be realized, and opens a new way to design the devices of the asymmetric acoustic transmission, which has great potential applications in acoustic rectifiers and acoustic diodes.
Duke Scholars
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Related Subject Headings
- Applied Physics
- 5104 Condensed matter physics
- 5102 Atomic, molecular and optical physics
- 4016 Materials engineering
- 0912 Materials Engineering
- 0205 Optical Physics
- 0204 Condensed Matter Physics
Citation
Published In
DOI
EISSN
ISSN
Publication Date
Volume
Issue
Related Subject Headings
- Applied Physics
- 5104 Condensed matter physics
- 5102 Atomic, molecular and optical physics
- 4016 Materials engineering
- 0912 Materials Engineering
- 0205 Optical Physics
- 0204 Condensed Matter Physics