基于石墨烯的可重构超材料太赫兹滤波器

2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics Pub Date : 2014-11-06 DOI:10.1109/METAMATERIALS.2014.6948669

K. Yang, S. Liu, S. Arezoomandan, A. Nahata, B. Sensale‐Rodriguez

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引用次数: 3

摘要

提出并讨论了一种基于石墨烯的可重构超材料太赫兹滤波器。该器件结构由带有间隙的周期性金属环组成，其中石墨烯条纹位于间隙中。结果表明，通过改变石墨烯的电导率，可以很容易地调节滤波器的谐振频率;这实际上是通过改变堆叠石墨烯层的数量来实现的。制备样品的太赫兹时域光谱测量表明，结构的共振可以改变40%(即从0.2太赫兹到0.12太赫兹)。

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Reconfigurable metamaterial terahertz filters based on graphene

A reconfigurable metamaterial terahertz filter based on graphene is presented and discussed. The device structure consists of periodic metallic rings with gaps, where graphene stripes are located. It is shown that the filter resonance frequency can easily be adjusted by varying the conductivity of graphene; this is practically implemented via changing the number of stacked graphene layers. Terahertz time domain spectroscopy measurements of the fabricated samples show that the resonance of the structure can be altered a 40% (i.e. from 0.2 THz to 0.12 THz).

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2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics

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