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Tunable ultranarrow spectrum selective absorption in a graphene monolayer at terahertz frequency
Wu, Jun; mailswj2011@163.com
2016
Source PublicationJ. Phys. D-Appl. Phys.
Volume49Issue:21
AbstractComplete 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.
SubtypeArticle
Department信息光电
DOI10.1088/0022-3727/49/21/215108
Funding OrganizationNational Natural Science Foundation of China [61405217, 61127013, 61308077, 61308073] ; National Natural Science Foundation of China [61405217, 61127013, 61308077, 61308073] ; National Natural Science Foundation of China [61405217, 61127013, 61308077, 61308073] ; National Natural Science Foundation of China [61405217, 61127013, 61308077, 61308073]
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China [61405217, 61127013, 61308077, 61308073] ; National Natural Science Foundation of China [61405217, 61127013, 61308077, 61308073] ; National Natural Science Foundation of China [61405217, 61127013, 61308077, 61308073] ; National Natural Science Foundation of China [61405217, 61127013, 61308077, 61308073]
WOS IDWOS:000375265400013
Citation statistics
Cited Times:22[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.siom.ac.cn/handle/181231/28530
Collection信息光学与光电技术实验室
Corresponding Authormailswj2011@163.com
Affiliation中国科学院上海光学精密机械研究所
Recommended Citation
GB/T 7714
Wu, Jun,mailswj2011@163.com. Tunable ultranarrow spectrum selective absorption in a graphene monolayer at terahertz frequency[J]. J. Phys. D-Appl. Phys.,2016,49(21).
APA Wu, Jun,&mailswj2011@163.com.(2016).Tunable ultranarrow spectrum selective absorption in a graphene monolayer at terahertz frequency.J. Phys. D-Appl. Phys.,49(21).
MLA Wu, Jun,et al."Tunable ultranarrow spectrum selective absorption in a graphene monolayer at terahertz frequency".J. Phys. D-Appl. Phys. 49.21(2016).
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