Abstract-Double frequency plasmonic amplification of terahertz radiation in a periodical double-layer graphene

O V Polischuk, I M Moiseenko, M Y Morozov, V V Popov,

https://iopscience.iop.org/article/10.1088/1742-6596/1092/1/012119/meta

The plasmon amplification spectrum of terahertz radiation in a double-layer graphene nanoribbon array is theoretically studied. It is shown that this graphene structure exhibits strong plasmon response and giant amplification at vicinity of the anticrossing regime between optical and acoustic plasmon modes at room temperature.