Transmission of light through a single rectangular hole -: art. no. 103901

被引:364
作者
García-Vidal, FJ
Moreno, E
Porto, JA
Martín-Moreno, L
机构
[1] Univ Autonoma Madrid, Dept Fis Teor Mat Condensada, E-28049 Madrid, Spain
[2] Univ Zaragoza, CSIC, Dept Fis Mat Condensada, E-50009 Zaragoza, Spain
关键词
D O I
10.1103/PhysRevLett.95.103901
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We show that a single rectangular hole in a metallic film exhibits transmission resonances that appear near the cutoff wavelength of the hole waveguide. For light polarized with the electric field pointing along the hole's short axis, it is shown that the normalized-to-area transmittance at resonance is proportional to the ratio between the long and short sides, and to the dielectric constant inside the hole. Importantly, this resonant transmission process is accompanied by a huge enhancement of the electric field at both entrance and exit interfaces of the hole.
引用
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页数:4
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