Manipulation of giant Faraday rotation in graphene metasurfaces
Manipulation of giant Faraday rotation in graphene metasurfaces
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DOI：
10.1063/1.4769095
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发表时间：
2012-12-03
影响因子：
4
通讯作者：
Perruisseau-Carrier, Julien
中科院分区：
文献类型：
--
作者：
Fallahi, Arya;Perruisseau-Carrier, Julien
法拉第旋转是用于各种光学控制和磁场传感技术的基本磁光现象。最近，它表明，一个巨大的法拉第旋转可以实现在低太赫兹制度由一个单一的单原子石墨烯层。在这里，我们证明了这种特殊的性质可以通过适当的纳米图案化来操纵，特别是实现高达6 THz的巨大旋转，其特征不小于100 nm。通过一个简单的物理模型预测了周期性图案化对法拉第旋转的影响，然后通过精确的全波模拟对其进行验证和改进。(C)2012年美国物理学会。[http：//dx.doi.org/10.1063/1.4769095]
Faraday rotation is a fundamental magneto-optical phenomenon used in various optical control and magnetic field sensing techniques. Recently, it was shown that a giant Faraday rotation can be achieved in the low-THz regime by a single monoatomic graphene layer. Here, we demonstrate that this exceptional property can be manipulated through adequate nano-patterning, notably achieving giant rotation up to 6THz with features no smaller than 100 nm. The effect of the periodic patterning on the Faraday rotation is predicted by a simple physical model, which is then verified and refined through accurate full-wave simulations. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4769095]