Optical response of tunable terahertz plasmon in a grating-gated graphene transistor

Yan Bo^{1, 2, 3}, Fang Jingyue^{2, †}, Qin Shiqiao², Liu Yongtao³, Chen Li¹, Chen Shuang¹, Li Renbing¹, Han Zhen¹

(color online) (a) Output characteristic curve. (b) Leak current curve (red solid line (I_G1) and blue dashed line (I_G2)). (c) Transfer characteristic curve of experimental and theoretical fitting results. Inset shows the channel and leakage results measured at the same time.