论文标题
石墨烯高度曲面以操纵THZ波
Graphene Hypersurface for Manipulation of THz Waves
论文作者
论文摘要
在这项工作中，我们研究了石墨烯高表情（HSF），以操纵THZ波。石墨烯HSF结构由沉积在硅底物上的石墨烯单位细胞的周期性阵列组成，并由金属接地平面终止。提出的HSF的性能是数值分析的。研究了HSF的电磁参数，例如渗透率，介电常数和阻抗。提出的石墨烯HSF对THZ波的吸收，反射和传播具有主动控制。石墨烯HSF在共振时提供了完美的吸收，零反射和零传输。此外，石墨烯HSF结构具有异常反射和频率重新配置的优点。入射波可以在所需的方向上反映，具体取决于HSF的相位梯度，并且在重新配置时，在所有可重新配置的频率上都保持完美的吸收。结果揭示了石墨烯HSF对THZ波操作的有效性。
In this work, we investigated graphene hypersurface (HSF) for the manipulation of THz waves. The graphene HSF structure is consists of a periodic array of graphene unit cells deposited on silicon substrate and terminated by a metallic ground plane. The performance of the proposed HSF is numerically analyzed. Electromagnetic parameters of HSF such as permeability, permittivity, and impedance are studied. The proposed graphene HSF has active control over absorption, reflection, and transmission of THz waves. The graphene HSF provides perfect absorption, zero reflection and zero transmission at resonance. Moreover, the graphene HSF structure has the advantage of anomalous reflection and frequency reconfiguration. Incident waves can be reflected in the desired direction, depending on the phase gradient of the HSF and the perfect absorption is maintained at all reconfigurable frequencies upon reconfiguration. The results reveal the effectiveness of the graphene HSF for the manipulation of THz waves.
