Plasmonic induced transparency in a coupled system composed of metal-insulate-metal stub and trapezoid cavity resonator
Plasmonic induced transparency in a coupled system composed of metal-insulate-metal stub and trapezoid cavity resonator
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DOI：
10.1016/j.optcom.2017.03.067
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发表时间：
2017-08
影响因子：
2.4
通讯作者：
Pengfei Zheng;Huimin Yang;Linsen Jiao-;Meiyong Fan;Binfeng Yun;Yiping Cui
中科院分区：
文献类型：
--
作者：
Pengfei Zheng;Huimin Yang;Linsen Jiao-;Meiyong Fan;Binfeng Yun;Yiping Cui
提出了一种由金属绝缘金属短柱与梯形腔谐振腔耦合构成的等离子体诱导透明系统。结果表明，梯形腔中不同窄模的光谱可以与宽短模重叠，产生等离子体诱导的透明效应。但从耦合腔系统中的模场分布可以看出，由于梯形腔模和短截模之间几乎没有近场重叠，其中一些不能产生等离子体诱导的透明效应。通过改变端部和梯形谐振器之间的相对位置，可以重现“消失”的等离子体诱导透明。此外，该方法还可以通过调节耦合强度来控制等离子体诱导的透明和慢光效应。
A plasmonic induced transparency system constructed by a metal-insulate-metal stub coupled with a trapezoid cavity resonator was proposed. The results show that the spectra of different narrow modes in the trapezoid resonator can overlap with the broad stub mode and induce the plasmonic induced transparency effect. However, some of them cannot produce a plasmonic induced transparency effect because there is hardly any near field overlap between the trapezoid cavity mode and the stub mode, which was proved by the mode field distributions in the coupled resonator system. The “disappeared” plasmonic induced transparency can be reproduced by changing the relative position between the stub and trapezoid resonator. Also the coupling strength can be modulated by this method to manipulate the plasmonic induced transparency and slow light effect.