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	Optical reflection efficiency modulation based on graphene film
	Yang, Junbo ; Huang, Jie ; Wu, Wenjun ; Chen, Dingbo ; Zhang, Jingjing
	2016
关键词	graphene optical modulator plasmonics tunable resonances optical conductivity PLASMONICS DEVICES TRANSPARENT ELECTRODES PHOTONICS TERAHERTZ LAYER
英文摘要	This paper presents a comprehensive study of light reflection modulation in graphene through external applied voltage and shows a strategy to realize both broadband and strong reflection enhancement. The influence of chemical potential, applied voltage and carrier concentration on reflection efficiency are investigated by numerical simulations. By employing an applied voltage, the maximum of difference of reflected coefficient can reach up to 30% for 3THz radian frequency. Thus, using external voltage to control optical reflection efficiency is testified to be reasonable and feasible based on graphene film. Furthermore, the reflection efficiency modulation can be realized at a wideband of frequency.; National Natural Science Foundation of China [60907003]; Foundation of NUDT [JC13-02-13]; Hunan Provincial Natural Science Foundation of China [13JJ3001]; Program for New Century Excellent Talents in University [NCET-12-0142]; CPCI-S(ISTP); yangjunbo008@sohu.com; 10027
语种	英语
出处	Conference on Nanophotonics and Micro/Nano Optics III
DOI标识	10.1117/12.2246789
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/459647]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Yang, Junbo,Huang, Jie,Wu, Wenjun,et al. Optical reflection efficiency modulation based on graphene film. 2016-01-01.

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