Efficient terahertz transmission modulation in plasmonic metallic slits by a graphene ribbon array

被引：5
|
作者：
Zhang, L. [1 ]
Zhai, Z. C. [1 ]
机构：
[1] China Jiliang Univ, Ctr Terahertz Res, Hangzhou 310018, Zhejiang, Peoples R China
来源：
APPLIED OPTICS | 2018年 / 57卷 / 32期
关键词：
EXTRAORDINARY OPTICAL-TRANSMISSION; SUBWAVELENGTH HOLE ARRAYS; WAVE-GUIDE; PHOTONICS; METAMATERIALS; EXPLOSIVES; RESONANCES;
D O I：
10.1364/AO.57.009550
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Extraordinary optical transmission is the widely known phenomenon of enhanced transmission of waves through subwavelength periodic metallic apertures. Here, we propose efficient terahertz transmission modulation in subwavelength metallic slits by a graphene plasmonic ribbon array. The extraordinary optical transmission through the subwavelength metallic slits can be tuned by coupling with the plasmonic resonance of graphene ribbon array, resulting in a deep transmittance depression. Numerical simulations show that maximal transmission modulation depth of 98.99% can be obtained at 1.03 THz via this mechanism. (C) 2018 Optical Society of America
引用
收藏
页码：9550 / 9554
页数：5
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