Abstract An active electromagnetically induced transparency (EIT) analog adopting graphene as microstructure of metamaterial is investigated. The analog consist interconnected graphene strip (GS) and graphene split ring resonator (GSRR), which can act as bright and dark elements alternately. The distinct EIT-like effect can be generated by bright-dark mode coupling in x and y polarization directions. Further investigations reveal that EIT peak can be actively controlled via Fermi level of graphene, and theoretical analysis based on two particles mode express the reason. Moreover, notable EIT-like effect can also be generated in a wide range of polarization angles, and impact of polarization angle on EIT peak is also discussed in detail. These characteristic paves the way for the applications of EIT-like in sensor device.

中文翻译：

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具有石墨烯超材料的类主动 EIT 依赖于偏振角

摘要 研究了一种采用石墨烯作为超材料微结构的主动电磁感应透明（EIT）模拟物。类似物由互连的石墨烯条（GS）和石墨烯裂环谐振器（GSRR）组成，它们可以交替充当明暗元件。通过在 x 和 y 偏振方向上的明暗模式耦合可以产生明显的类似 EIT 的效果。进一步的研究表明，可以通过石墨烯的费米能级主动控制 EIT 峰，基于两个粒子模式的理论分析表达了原因。此外，在较宽的偏振角范围内也可以产生显着的类 EIT 效应，并且还详细讨论了偏振角对 EIT 峰的影响。这些特性为类 EIT 在传感器设备中的应用铺平了道路。