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    A 3D tunable and multi-frequency graphene plasmonic cloak

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    Type
    Article
    Authors
    Farhat, Mohamed
    Rockstuhl, Carsten
    Bagci, Hakan cc
    KAUST Department
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering Program
    Computational Electromagnetics Laboratory
    Date
    2013-05-15
    Online Publication Date
    2013-05-15
    Print Publication Date
    2013-05-20
    Permanent link to this record
    http://hdl.handle.net/10754/562505
    
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    Abstract
    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.21.012592
    Sponsors
    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 Society
    Journal
    Optics Express
    DOI
    10.1364/OE.21.012592
    PubMed ID
    23736478
    Additional Links
    https://doi.org/10.1364/oe.21.012592
    ae974a485f413a2113503eed53cd6c53
    10.1364/OE.21.012592
    Scopus Count
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    Articles; Electrical and Computer Engineering Program; Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

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