Graphene, an innovated 2D innovated material with atomic thickness, is drawing more and more attention in biology, optoelectronics, terahertz communication, etc [ ]. In terahertz regime, graphene has better performance than conventional noble metal due to the support of surface plasmon polaritons (SPPs) propagation [ ], which makes it a very promising candidate in terahertz technology. Therefore, in recent years, there emerged a great number of graphene-based devices in terahertz and mid-infrared regimes, such as modulators [ – ], detectors [ ], absorbers [ , ], and lasers [ , ].
展开▼
