Abstract
By analogy with the electromagnetic wave, the acoustic transparency phenomenon is analyzed for a multilayered sphere with acoustic metamaterials. The neutral-inclusion concept is used to predict the transparency conditions in the quasistatic case, which are further confirmed by a full-wave analysis. The mechanism of the transparency is based on lowering the total-scattering cross section of the composite sphere. It is found that, to improve the transparency, the angle-dependent scattering cross section must also be minimized for all directions.
| Original language | English |
|---|---|
| Article number | 046606 |
| Journal | Physical Review E |
| Volume | 75 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 13 Apr 2007 |
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