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Theoretical requirements for broadband perfect absorption of acoustic waves by ultra-thin elastic meta-films
We derive and numerically demonstrate that perfect absorption of elastic waves can be achieved in two types of ultra-thin elastic meta-films: one requires a large value of almost pure imaginary effective mass density and a free space boundary, while the other requires a small value of almost pure im...
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| Veröffentlicht in: | Sci Rep |
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| Hauptverfasser: | , , , , , , , |
| Format: | Artigo |
| Sprache: | Inglês |
| Veröffentlicht: |
Nature Publishing Group
2015
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| Schlagworte: | |
| Online Zugang: | https://ncbi.nlm.nih.gov/pmc/articles/PMC4505311/ https://ncbi.nlm.nih.gov/pubmed/26184117 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1038/srep12139 |
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