The interaction between graphene surface plasmons and a semiconductor quantum well has been investigated by means of scattering matrix simulations. Due to the strong confinement factor of the graphene layer, a large Rabi splitting arises from the interaction with intersubband transitions. By varying the Fermi energy in the graphene and the doping in the quantum well, the resulting polariton states show features of strong and ultra-strong coupling. The system has been modeled with the coupled-mode theory to find the highest quality factor for the polariton resonance, reaching a “highly resolved” ultra-strong coupling regime.

中文翻译：

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石墨烯等离子体激元与子带间极化子之间的高度解析超强耦合

石墨烯表面等离子体激元和半导体量子阱之间的相互作用已通过散射矩阵模拟进行了研究。由于石墨烯层的约束力强，与子带间跃迁的相互作用会产生较大的拉比分裂。通过改变石墨烯中的费米能和量子阱中的掺杂，所得极化子态表现出强而超强耦合的特征。该系统已使用耦合模式理论进行建模，以找到极化子共振的最高品质因数，从而达到“高度分解”的超强耦合状态。