Tunable ultranarrow spectrum selective absorption in a graphene monolayer at terahertz frequency

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 信息光学与光电技术实验室

	Tunable ultranarrow spectrum selective absorption in a graphene monolayer at terahertz frequency
	Wu, Jun
刊名	J. Phys. D-Appl. Phys.
	2016
卷号	49 期号:21
通讯作者	mailswj2011@163.com
英文摘要	Complete absorption in a graphene monolayer at terahertz frequency through the critical coupling effect is investigated. It is achieved by sandwiching the graphene monolayer between a dielectric grating and a Bragg grating. The designed graphene absorber exhibits near-unity absorption at resonance but with an ultranarrow spectrum and antenna-like response, which is attributed to the combined effects of guided mode resonance with dielectric grating and the photonic band gap with Bragg grating. In addition to numerical simulation, the electric field distributions are also illustrated to provide a physical understanding of the perfect absorption effect. Furthermore, the absorption performance can be tuned by only changing the Fermi level of graphene, which is beneficial for real application. It is believed that this study may be useful for designing next-generation graphene-based optoelectronic devices.
收录类别	SCI
资助信息	National Natural Science Foundation of China [61405217, 61127013, 61308077, 61308073]
WOS记录号	WOS:000375265400013
内容类型	期刊论文
源URL	[http://ir.siom.ac.cn/handle/181231/27542]
专题	上海光学精密机械研究所_信息光学与光电技术实验室
作者单位	中国科学院上海光学精密机械研究所
推荐引用方式 GB/T 7714	Wu, Jun. Tunable ultranarrow spectrum selective absorption in a graphene monolayer at terahertz frequency[J]. J. Phys. D-Appl. Phys.,2016,49(21).
APA	Wu, Jun.(2016).Tunable ultranarrow spectrum selective absorption in a graphene monolayer at terahertz frequency.J. Phys. D-Appl. Phys.,49(21).
MLA	Wu, Jun."Tunable ultranarrow spectrum selective absorption in a graphene monolayer at terahertz frequency".J. Phys. D-Appl. Phys. 49.21(2016).