So Jin-Kyu, Jung Hoe-Cheon, Min Sun-Hong, Jang Kyu-Ha, Bak Seung-Ho, Park Gun-Sik
Center for THz-Bio Application Systems, Department of Physics and Astronomy, Seoul National University, Seoul, Korea.
Opt Express. 2010 Sep 13;18(19):20222-8. doi: 10.1364/OE.18.020222.
Transmission of electromagnetic waves through thick perfect conducting slabs perforated by one-dimensional arrays of rectangular holes was studied experimentally in the microwave frequency range. The observed thickness-dependent transmission clearly exhibits the evanescent and propagating nature of the involved electromagnetic excitations on the considered structures, which are effective surface plasmons and localized waveguide resonances, respectively. The 1D crystals showing transmission based on localized resonances further manifests the frequency-dependent effective refractive index depending on the filling ratio of the holes and accompanies resonant guided wave propagation.
在微波频率范围内，对电磁波透过由一维矩形孔阵列穿孔的厚理想导电平板的传输进行了实验研究。观察到的与厚度相关的传输清楚地展现了在所考虑结构上所涉及电磁激发的倏逝和传播特性，它们分别是有效的表面等离激元和局域波导共振。基于局域共振呈现传输特性的一维晶体进一步表明，有效折射率与频率有关，取决于孔的填充率，并伴随着共振导波传播。
