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首页> 外文期刊>Optical Materials >Magnetic field induced enhanced absorption using a gated graphene/1D photonic crystal hybrid structure: Quantum regime
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Magnetic field induced enhanced absorption using a gated graphene/1D photonic crystal hybrid structure: Quantum regime

机译：使用门控石墨烯/ 1D光子晶体杂化结构的磁场诱导的增强吸收：量子态

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摘要

The terahertz (THz) absorption properties of a gated graphene monolayer placed on top of a one-dimensional photonic crystal is investigated in the presence of a perpendicular magnetostatic bias. The response of electrons to the magnetic field is inspected in the quantum regime, due to the low doping level of graphene grown on the C-terminated surface of silicon-carbide. It has been shown that there is the possibility of achieving enhanced absorption at low magnetic fields for certain states of circular polarization of light. Furthermore, adjusting the gate voltage of the graphene provides another method of tuning absorption in the proposed structure. Therefore, one can obtain enhanced absorption with the appropriate choices of magnetic and electric biases. We believe that these properties make our structure suitable for designing tunable graphene-based THz absorbers.
机译：在存在垂直静磁偏压的情况下，研究了置于一维光子晶体顶部的带门石墨烯单层的太赫兹（THz）吸收特性。由于在碳化硅的C末端表面上生长的石墨烯掺杂水平低，因此在量子状态下检查了电子对磁场的响应。已经表明，对于光的圆偏振的某些状态，有可能在低磁场下实现增强的吸收。此外，调节石墨烯的栅极电压提供了在所提出的结构中调节吸收的另一种方法。因此，可以通过适当选择磁偏置和电偏置来获得增强的吸收。我们相信这些特性使我们的结构适合于设计可调谐的基于石墨烯的太赫兹吸收器。

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