标题： 通过石墨烯平面手性结构的可调谐不对称传输太赫兹波 显示英文标题

标题： Tunable asymmetric transmission of THz wave through a graphene planar chiral structure

摘要： 在这封信中，我们展示了通过纳米结构的平面手性石墨烯薄膜传输圆极化波的不对称性可以在太赫兹范围内观察到。 单原子层石墨烯的不对称传输效应与先前已证明的金属平面手性纳米结构的不对称传输效应非常相似。 并且，总传输的对映异构差异随着石墨烯的费米能级的变化而变化。 石墨烯纳米结构中的等离激元激发是对映异构敏感的，对于相反的传播方向表现出不对称性。 这一现象将深化我们对平面手性结构中光-物质相互作用的理解，并可能在偏振敏感设备、传感器、探测器及其他领域找到应用。 显示英文摘要

摘要： In this letter, we show that asymmetric transmission of circularly polarized waves through a nanostructured planar chiral graphene film can be observed in terahertz range. The asymmetric transmission effect of monatomic layer graphene closely resembles that of metallic planar chiral nanostructures which has previously been demonstrated. And the relative enantiomeric difference in the total transmission varies with the change of graphene's Fermi level. The plasmonic excitation in the graphene nanostructure is the enantiometically sensitive which is asymmetric for opposite propagating directions. This phenomenon will deepen our understanding of light-matter interactions in planar chiral structures and may find applications in polarization-sensitive devices, sensors, detectors and other areas.