Type
ArticleKAUST Department
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) DivisionElectrical Engineering Program
Computational Electromagnetics Laboratory
Date
2013-05-15Online Publication Date
2013-05-15Print Publication Date
2013-05-20Permanent link to this record
http://hdl.handle.net/10754/562505
Metadata
Show full item recordAbstract
We demonstrate the possibility of cloaking three-dimensional objects at multi-frequencies in the far-infrared part of the spectrum. The proposed cloaking mechanism exploits graphene layers wrapped around the object to be concealed. Graphene layers are doped via a variable external voltage difference permitting continuous tuning of the cloaking frequencies. Particularly, two configurations are investigated: (i) Only one graphene layer is used to suppress the scattering from a dielectric sphere. (ii) Several of these layers biased at different gate voltages are used to achieve a multi-frequency cloak. These frequencies can be set independently. The proposed cloak's functionality is verified by near- and far-field computations. By considering geometry and material parameters that are realizable by practical experiments, we contribute to the development of graphene based plasmonic applications that may find use in disruptive photonic technologies. © 2013 Optical Society of America.Citation
Farhat, M., Rockstuhl, C., & Bağcı, H. (2013). A 3D tunable and multi-frequency graphene plasmonic cloak. Optics Express, 21(10), 12592. doi:10.1364/oe.21.012592Sponsors
Carsten Rockstuhl would like to acknowledge support by the Federal Ministry of Education and Research (Phona) as well as from the State of Thuringia within the Pro-Excellence program (MeMa).Publisher
The Optical SocietyJournal
Optics ExpressPubMed ID
23736478Additional Links
https://doi.org/10.1364/oe.21.012592ae974a485f413a2113503eed53cd6c53
10.1364/OE.21.012592
Scopus Count
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