Abstract The Cherenkov plasmonic radiation in/parallel graphene plane is demonstrated theoretically. It is shown that the graphene Cherenkov radiation can be excited by a moving electron at a relative lower speed, which greatly reduces the difficulty for the Cherenkov radiation realization due to the low phase velocity and high field confinement of graphene plasmons. The excited graphene plasmons wavelength and the Cherenkov radiation angle can be dynamically changed by varying the Femi energy levels, which provides a versatile, tunable mechanism for plasmonic Cherenkov effect in active integrated photonic applications.

中文翻译：

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石墨烯表面极化子面内切伦科夫辐射

摘要 理论上证明了在/平行石墨烯平面内的切伦科夫等离子体辐射。结果表明，石墨烯切伦科夫辐射可以被相对较低速度的运动电子激发，这大大降低了由于石墨烯等离子体的低相速度和高场限制导致切伦科夫辐射实现的难度。激发的石墨烯等离子体波长和切伦科夫辐射角可以通过改变 Femi 能级来动态改变，这为有源集成光子应用中的等离子体切伦科夫效应提供了一种通用的、可调的机制。