Transition from capacitive coupling to direct charge transfer in asymmetric terahertz plasmonic assemblies
Transition from capacitive coupling to direct charge transfer in asymmetric terahertz plasmonic assemblies
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DOI：
10.1364/ol.41.005333
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发表时间：
2016-11-15
期刊：
影响因子：
3.6
通讯作者：
Shur, Michael
中科院分区：
文献类型：
--
作者：
Ahmadivand, Arash;Sinha, Raju;Shur, Michael
我们利用金属V形块的非对称等离子体组件对电荷转移太赫兹等离子体进行了实验和数值分析。模块的非对称设计允许由于电容耦合而激励经典的偶极和多极模式。在块之间引入导电微盘，促进电荷转移等离子体的激发，并通过改变盘的大小来研究它们的特性以及电容耦合。(C)2016年度美国光学学会
We experimentally and numerically analyze the charge transfer THz plasmons using an asymmetric plasmonic assembly of metallic V-shaped blocks. The asymmetric design of the blocks allows for the excitation of classical dipolar and multipolar modes due to the capacitive coupling. Introducing a conductive microdisk between the blocks, we facilitated the excitation of the charge transfer plasmons and studied their characteristics along with the capacitive coupling by varying the size of the disk. (C) 2016 Optical Society of America