Subwavelength perfect acoustic absorption in membrane-type metamaterials: a geometric perspective
Perfect absorption of low frequency sound with subwavelength absorbers has always been a challenge, owing to the difficulty in achieving impedance matching and the inherent weak absorption coefficients of materials at low frequencies. Recently it was shown that when a membrane-type resonator’s modes...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2015-01-01
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| Series: | EPJ Applied Metamaterials |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1051/epjam/2015017 |