论文标题
基于石墨烯等离子体的游离电子纳米剂
Free electron nanolaser based on the graphene plasmons
论文作者
论文摘要
在本文中，考虑了由于石墨烯等离子在游离电子上的刺激散射而实现从THZ到极端紫外线域的激光的可能方法。所提出的FEL方案的分析定量描述基于Maxwell-vlasov方程的自洽集。我们研究下调和上转换。结果表明，可以使用与石墨烯等离子等离子偶联的非常非偏好的电子的来源来实现红外辐射的相干下调。由于强限的石墨烯等离子，可以通过轻度相对论的电子束实现中红外向极端紫外线辐射的上转换。后者是桌面短波长电子纳米剂的有前途的机制。
In this paper, a possible way to achieve lasing from THz to extreme UV domain due to stimulated scattering of graphene plasmons on the free electrons is considered. The analytical-quantitative description of the proposed FEL scheme is based on the self-consistent set of the Maxwell--Vlasov equations. We study the downconversion as well as the upconversion. It is shown that the coherent downconversion of infrared radiation to THz one can be achieved using a source of very non-relativistic electrons at the resonant coupling with the graphene plasmons. Due to the strongly confined graphene plasmons, the upconversion of mid-infrared to extreme UV radiation can be achieved with the mildly relativistic electron beams. The latter is a promising mechanism for the tabletop short-wavelength free electron nanolaser.
