Theory of resonant acoustic transmission through subwavelength apertures.
Theory of resonant acoustic transmission through subwavelength apertures.
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DOI：
10.1121/1.2933145
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发表时间：
2008-05
影响因子：
8.6
通讯作者：
Johan Christensen;L. Martín-Moreno;F. García-Vidal
中科院分区：
文献类型：
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作者：
Johan Christensen;L. Martín-Moreno;F. García-Vidal
完整地描述了亚波长孔径（狭缝和孔洞）的声传输特性。首先，我们研究了单孔中法布里-珀罗共振的出现。当这些孔以周期性的方式放置时，一种新型的透射共振出现在光谱中。我们证明了这种共振源于沿板运行的声导波的激发，它与单孔径波导模式相关的法布里-珀罗共振强烈杂交。并详细讨论了其与电磁情况的异同。
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.