Omni-directional and broadband acoustic anti-reflection and universal acoustic impedance matching
The mechanism of the perfect anti-reflection of acoustic waves, regardless of frequency and incident angle, is presented. We show that reflections at a planar interface between two different acoustic media can be removed by adding a nonlocal metamaterial that compensates for the impedance mismatch....
| Published in: | Nanophotonics |
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| Main Authors: | , |
| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2022-02-01
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| Subjects: | |
| Online Access: | https://doi.org/10.1515/nanoph-2021-0650 |