Author/Authors :
Zhou، نويسنده , , Renlong and Chen، نويسنده , , Xiaoshuang and Wang، نويسنده , , Shaowei and Lu، نويسنده , , Wei and Zeng، نويسنده , , Yong and Chen، نويسنده , , Hongbo and Li، نويسنده , , Hongjian and Xia، نويسنده , , Hui and Wang، نويسنده , , Lingling، نويسنده ,
Abstract :
In this paper we investigated the enhanced transmission and surface plasmon resonance through a thin gold film with a periodic array of subwavelength nanoholes. Both freestanding gold-film nanohole arrays and gold-film nanohole arrays deposited on a gallium arsenide (GaAs) substrate are considered. Periodic arrays of nanoholes exhibit two different surface plasmon resonance features: localized waveguide resonance and the well-recognized photonic crystal resonance. The tangential electric field component E y is nonzero only in the hole region for a freestanding gold-film nanohole array, but it can exist in the hole region and in the metallic region for a gold-film nanohole array deposited on a GaAs substrate.
Keywords :
D. Localized waveguide resonance , D. Surface Plasmon , A. Nanohole arrays , D. Photonic crystal resonance
