Double-spectral enhanced optical transmission via the hybridization of plasmon modes in nanohole and nanocube arrays

作者：Cai, Zheng-jie^*; Liu, Gui-qiang; Liu, Zheng-qi; Zhang, Xiang-nan; Hu, Ying; Chen, Yuan-hao; Yan, An

来源：Laser Physics, 2014, 24(12): 125901.

DOI：10.1088/1054-660X/24/12/125901

• nanostructure
• double-spectral enhanced optical transmission
• surface plasmon

We propose a novel plasmonic nanostructure composed of a silver (Ag) nanocube array coated on an Ag film perforated with a cubic nanohole array, and theoretically study its optical properties by the finite-difference time-domain method. Double greatly enhanced optical transmission bands in the visible and near-infrared regions are achieved via strong plasmon resonance coupling effects of the nanohole and nanocube arrays. The double-spectral enhanced optical transmission behaviors can be efficiently tailored by varying the widths, periods and heights of nanocubes and cubic nanoholes. The proposed structure may provide potential applications in deep subwavelength optoelectronic devices, including highly integrated light input and output components, sensors and plasmonic filters.

• 出版日期2014-12
• 单位江西师范大学