A Novel Method for PIT Effects Based on Plasmonic Decoupling
A Novel Method for PIT Effects Based on Plasmonic Decoupling
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基于等离子体解耦的 PIT 效应新方法
DOI:
10.1088/0256-307x/36/1/017801
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发表时间:
2019
影响因子:
3.5
通讯作者:
Jian-Qiang Liu
中科院分区:
文献类型:
--
作者:
Bin Sun;Fei-Feng Xie;Shuai Kang;You-chang Yang;Jian-Qiang Liu
A tunable dual-band stop-band THz spectrum can be realized in a hybrid structure, which consists of metal nanoribbon arrays clad by graphene nanoribbons. Dual-band spectra can be controlled separately by the nanoribbon width ww and graphene chemical potential μcμc. We explain that two local plasmonic modes excited at graphene ribbons belong to different gratings, which uncouple with each other by electro-magnetic shielding of the metal ribbons. Furthermore, plasmonic induced transparent (PIT) effects can also be realized by making the two transmission notches close to each other, with better performance than the PIT system based on plasmonic coupling, such as with a larger extinction radio and a tunable transparency window.
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