Theory of highly directional emission from a single subwavelength aperture surrounded by surface corrugations -: art. no. 167401
Theory of highly directional emission from a single subwavelength aperture surrounded by surface corrugations -: art. no. 167401
复制标题
DOI：
10.1103/physrevlett.90.167401
复制
发表时间：
2003-04-25
影响因子：
8.6
通讯作者：
Ebbesen, TW
中科院分区：
文献类型：
--
作者：
Martín-Moreno, L;García-Vidal, FJ;Ebbesen, TW
我们提出了一个理论基础的光束显示的一个单一的亚波长孔径在一个适当的波纹金属膜[H。J. Lezec等人，Science 297，820（2002）]。计算结果与实验数据吻合较好。我们表明，聚束是由于电磁表面共振的形成和光束的方向，宽度和波长，它发生可以选择通过调整结构的几何参数。
We present a theoretical foundation for the beaming of light displayed by a single subwavelength aperture in an appropriately corrugated metal film [H. J. Lezec et al., Science 297, 820 (2002)]. Good agreement is found between calculations and experimental data. We show that beaming is due to the formation of electromagnetic surface resonances and that the beam direction, width, and wavelength at which it occurs can be selected by tuning geometrical parameters of the structure.