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Circular dichroism of graphene-based absorber in static magnetic field
Wang, Min1,2; Wang, Yanqin1; Pu, Mingbo1; Hu, Chenggang1; Wu, Xiaoyu1,2; Zhao, Zeyu1; Luo, Xiangang1; Luo, X. (lxg@ioe.ac.cn)
Source PublicationJournal of Applied Physics
Volume115Issue:15Pages:154312
2014
Language英语
ISSN00218979
DOI10.1063/1.4871674
Indexed BySCI ; Ei
WOS IDWOS:000335227100043
Subtype期刊论文
AbstractRecently, the graphene-based absorber captures much attention due to its bright potential. In this paper, a modeling study of graphene-based absorber is made for variable magnetostatic bias, i.e., the magnetic circular dichroism (MCD). A strong MCD signal about DA = 0.94 is obtained in 7 T for a uniform graphene-based absorber. By periodically patterning subwavelength holes on the graphene, the structured absorber exhibits two obvious peaks induced by cavity resonance and localized resonance of meta-surface in 0 T, respectively. As the magnetic field increases, the absorption peaks show quite different electromagnetic response for the two kinds of circularly polarized lights. Two distinct MCDs signals of 0.711 at 2.02 THz and 0.91 at 2.49 THz in 7 T are observed. The results are well explained by a modified equivalent circuit model. © 2014 AIP Publishing LLC.; Recently, the graphene-based absorber captures much attention due to its bright potential. In this paper, a modeling study of graphene-based absorber is made for variable magnetostatic bias, i.e., the magnetic circular dichroism (MCD). A strong MCD signal about DA = 0.94 is obtained in 7 T for a uniform graphene-based absorber. By periodically patterning subwavelength holes on the graphene, the structured absorber exhibits two obvious peaks induced by cavity resonance and localized resonance of meta-surface in 0 T, respectively. As the magnetic field increases, the absorption peaks show quite different electromagnetic response for the two kinds of circularly polarized lights. Two distinct MCDs signals of 0.711 at 2.02 THz and 0.91 at 2.49 THz in 7 T are observed. The results are well explained by a modified equivalent circuit model. © 2014 AIP Publishing LLC.
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Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/6859
Collection微细加工光学技术国家重点实验室(开放室)
Corresponding AuthorLuo, X. (lxg@ioe.ac.cn)
Affiliation1. State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, Institute of Optics and Electronics, Chinese Academy of Science, P.O. Box 350, Chengdu 610209, China
2. University of Chinese Academy of Sciences, Beijing 100049, China
Recommended Citation
GB/T 7714
Wang, Min,Wang, Yanqin,Pu, Mingbo,et al. Circular dichroism of graphene-based absorber in static magnetic field[J]. Journal of Applied Physics,2014,115(15):154312.
APA Wang, Min.,Wang, Yanqin.,Pu, Mingbo.,Hu, Chenggang.,Wu, Xiaoyu.,...&Luo, X. .(2014).Circular dichroism of graphene-based absorber in static magnetic field.Journal of Applied Physics,115(15),154312.
MLA Wang, Min,et al."Circular dichroism of graphene-based absorber in static magnetic field".Journal of Applied Physics 115.15(2014):154312.
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