Abstract
We show that the acoustic response of perforated and elastically filled rigid screens can give rise to a broad landscape of tunable devices. We begin presenting deep-subwavelength transmission properties of a structured plate and demonstrate the immediate relationship to truly bound surface modes. We extend our theoretical model to analyze structured metal-fluid-metal wave guides for the confinement of sound and present exact expressions for the dispersion relations which describe the hybridization of resonances. We discuss the validity of our analytical model by direct comparison to full-wave simulations and use this technique in the search for broadband response in composite structures where the effective mass density and bulk modulus are simultaneously negative and exhibiting weak influences by viscous losses. © 2013 American Physical Society.
| Original language | English |
|---|---|
| Article number | 100301 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 88 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 10 Sept 2013 |
Bibliographical note
Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].Funding
All authors acknowledge Jensen Li for stimulating discussions. J.C. gratefully acknowledges financial support from the Danish Council for Independent Research and a Sapere Aude grant (No. 12-134776). Z.L. thanks the GRO program of Samsung Advanced Institute of Technology for support.
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