太赫兹辐射
光电子学
等离子体子
照相混合
石墨烯
材料科学
激发
辐射
振荡(细胞信号)
光学
激光器
远红外激光器
太赫兹超材料
纳米技术
物理
化学
量子力学
生物化学
作者
V. Ryzhii,M. Ryzhii,Chao Tang,T. Otsuji,Michael Shur
摘要
We analyze the generation of the terahertz (THz) radiation in photomixers using the interdigital graphene micro-nanoribbon (GMNR) array excited by modulated light or ultrashort radiation pulses. Replacing the standard metal electrodes by the GMNR array enables in the twofold advantages: an increase in the carrier generation efficiency due to the GMNR optical transparence and the possibility of the resonant excitation of plasmonic oscillations. The latter might lead to especially strong increase in the efficiency of the conversion of the optical signals into the THz radiation if the plasmonic oscillation quality factor is reasonably large.
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