Tunable positive and negative refraction of infrared radiation in graphene-dielectric multilayers

Zhang, R. Z.

doi:10.1063/1.4935797

Title: Tunable positive and negative refraction of infrared radiation in graphene-dielectric multilayers

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Abstract

Graphene-dielectric multilayers consisting of alternating layers of atom-thick graphene and nanometer-scale dielectric films exhibit characteristics of hyperbolic metamaterials, in which one positive and one negative permittivity are defined for orthogonal directions. Negative permittivity for electric field polarized in the direction parallel to the conductive graphene sheets gives rise to a negative angle of refraction and low-loss transmission for the side-incidence perspective proposed in this work. The Poynting vector tracing demonstrates the switching between positive and negative refraction in the mid-infrared region by tuning the chemical potential of graphene. This adjustable dual-mode metamaterial holds promise for infrared imaging applications.

Authors:: Zhang, R. Z.

Publication Date:: Mon Nov 09 00:00:00 EST 2015

OSTI Identifier:: 22486036

Resource Type:: Journal Article

Journal Name:: Applied Physics Letters

Additional Journal Information:: Journal Volume: 107; Journal Issue: 19; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951

Country of Publication:: United States

Language:: English

Subject:: 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; DIELECTRIC MATERIALS; ELECTRIC FIELDS; GRAPHENE; INFRARED RADIATION; LAYERS; METAMATERIALS; PERMITTIVITY; POYNTING THEOREM; REFRACTION

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                    Zhang, R. Z., and Zhang, Z. M., E-mail: zhuomin.zhang@me.gatech.edu. Tunable positive and negative refraction of infrared radiation in graphene-dielectric multilayers.  United States: N. p., 2015. 
        Web.  doi:10.1063/1.4935797.

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                    Zhang, R. Z., & Zhang, Z. M., E-mail: zhuomin.zhang@me.gatech.edu. Tunable positive and negative refraction of infrared radiation in graphene-dielectric multilayers.  United States.  https://doi.org/10.1063/1.4935797

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                    Zhang, R. Z., and Zhang, Z. M., E-mail: zhuomin.zhang@me.gatech.edu. 2015.  
        "Tunable positive and negative refraction of infrared radiation in graphene-dielectric multilayers".  United States.  https://doi.org/10.1063/1.4935797.

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@article{osti_22486036,

  title        = {Tunable positive and negative refraction of infrared radiation in graphene-dielectric multilayers},

  author       = {Zhang, R. Z. and Zhang, Z. M., E-mail: zhuomin.zhang@me.gatech.edu},

  abstractNote = {Graphene-dielectric multilayers consisting of alternating layers of atom-thick graphene and nanometer-scale dielectric films exhibit characteristics of hyperbolic metamaterials, in which one positive and one negative permittivity are defined for orthogonal directions. Negative permittivity for electric field polarized in the direction parallel to the conductive graphene sheets gives rise to a negative angle of refraction and low-loss transmission for the side-incidence perspective proposed in this work. The Poynting vector tracing demonstrates the switching between positive and negative refraction in the mid-infrared region by tuning the chemical potential of graphene. This adjustable dual-mode metamaterial holds promise for infrared imaging applications.},

  doi          = {10.1063/1.4935797},

  url          = {https://www.osti.gov/biblio/22486036},
  journal      = {Applied Physics Letters},

  issn         = {0003-6951},

  number       = 19,

  volume       = 107,

  place        = {United States},

  year         = {Mon Nov 09 00:00:00 EST 2015},

  month        = {Mon Nov 09 00:00:00 EST 2015}

}

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