Ye Yu Qian, Jin Yi
Centre for Optical and Electromagnetic Research, State Key Laboratory for Modern Optical Instrumentation, Zhejiang University, Zijingang Campus, Hangzhou 310058, China.
Phys Rev E Stat Nonlin Soft Matter Phys. 2009 Sep;80(3 Pt 2):036606. doi: 10.1103/PhysRevE.80.036606. Epub 2009 Sep 23.
By adding an array of metallic cut wires, the transmission of transverse electric (TE) waves (the electric field is parallel to the slits) through subwavelength slits in a thin metallic film is significantly enhanced. An 800-fold enhanced transmission is obtained compared to the case without the cut wires. It is demonstrated that a TE incident wave is highly confined by the cut wires, due to the excitation of the electric dipolelike resonance, and then effectively squeezed into and through the subwavelength slits.
通过添加一系列金属切割线，横向电场（TE）波（电场平行于狭缝）在薄金属膜中通过亚波长狭缝的传输得到显著增强。与没有切割线的情况相比，传输增强了800倍。结果表明，由于电偶极子状共振的激发，TE入射波被切割线高度限制，然后有效地挤入并通过亚波长狭缝。
