石墨烯
材料科学
激光线宽
太赫兹辐射
光学
吸收(声学)
宽带
谐振器
联轴节(管道)
等离子体子
丝带
光电子学
物理
纳米技术
激光器
冶金
复合材料
作者
Sichuan Xi,Lixin Ge,Xiewen Wen,Dezhuan Han,Yuchen Yang
出处
期刊:Optics Express
[The Optical Society]
日期:2016-11-07
卷期号:24 (23): 26357-26357
被引量:41
摘要
We theoretically investigate the broadband light absorption in the THz range by canceling the strong coupling in an array of graphene ribbons at subwavelength scale. A series of resonators with different absorption frequencies can achieve a broadband absorber, however, the suppression of absorption always accompanies since the mutual coupling between resonators cause the mode splitting. By adjusting the near- and far-field coupling between the plasmon resonances of the graphene ribbon array to the critical point, the absorption linewidth is broadened for almost one magnitude larger than that of individual graphene ribbon, to be ~1 THz. Our study provides not only insight understanding but also new approaches towards the broadband graphene absorber.
科研通智能强力驱动
Strongly Powered by AbleSci AI