Theory of resonant acoustic transmission through subwavelength apertures
Theory of resonant acoustic transmission through subwavelength apertures
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DOI：
10.1103/physrevlett.101.014301
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发表时间：
2008-07-04
影响因子：
8.6
通讯作者：
Garcia-Vidal, F. J.
中科院分区：
文献类型：
--
作者：
Christensen, J.;Martin-Moreno, L.;Garcia-Vidal, F. J.
展示了亚波长孔径（狭缝和孔）的声传输特性的完整景观。首先，我们研究单孔径中法布里-珀罗共振的出现。当这些孔径以周期性方式放置时，光谱中会出现一种新型的传输共振。我们证明，这种共振源于沿板传播的声导波的激发，该波导波与单孔中波导模式相关的法布里-珀罗共振强烈混合。还详细讨论了与电磁情况的异同。
A complete landscape is presented of the acoustic transmission properties of subwavelength apertures (slits and holes). First, we study the emergence of Fabry-Perot resonances in single apertures. When these apertures are placed in a periodic fashion, a new type of transmission resonance appears in the spectrum. We demonstrate that this resonance stems from the excitation of an acoustic guided wave that runs along the plate, which hybridizes strongly with the Fabry-Perot resonances associated with waveguide modes in single apertures. A detailed discussion of the similarities and differences with the electromagnetic case is also given.