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Optical bistability of graphene in the terahertz range

机译：太赫兹范围内的石墨烯的光学双稳态

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摘要

We use an exact solution of the relaxation-time Boltzmann equation in a uniform ac electric field to describe the nonlinear optical response of graphene in the terahertz (THz) range. The cases of monolayer, bilayer, and A B A-stacked trilayer graphene are considered, and the monolayer species is shown to be the most appropriate one to exploit the nonlinear free electron response. We find that a single layer of graphene shows optical bistability in the THz range, within the electromagnetic power range attainable in practice. The current associated with the third harmonic generation is also computed.
机译：我们使用均匀交流电场中弛豫时间Boltzmann方程的精确解来描述石墨烯在太赫兹（THz）范围内的非线性光学响应。考虑到单层，双层和A B A堆叠的三层石墨烯的情况，单层物质被证明是最适合利用非线性自由电子响应的物质。我们发现，单层石墨烯在THz范围内显示出在实践中可达到的电磁功率范围内的光学双稳性。还计算与三次谐波产生相关的电流。

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  • 来源
    《Physical review》 |2014年第12期|125425.1-125425.9|共9页
  • 作者

    N. M. R. Peres; Yu. V. Bludov; Jaime E. Santos; Antti-Pekka Jauho; M. I. Vasilevskiy;

  • 作者单位

    Centro de Fisica and Departamento de Fisica, Universidade do Minho, Campus de Gualtar, Braga 4710-057, Portugal;

    Centro de Fisica and Departamento de Fisica, Universidade do Minho, Campus de Gualtar, Braga 4710-057, Portugal;

    Centro de Fisica and Departamento de Fisica, Universidade do Minho, Campus de Gualtar, Braga 4710-057, Portugal;

    Center for Nanostructured Graphene (CNG), Department of Micro and Nanotechnology, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark;

    Centro de Fisica and Departamento de Fisica, Universidade do Minho, Campus de Gualtar, Braga 4710-057, Portugal;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    nonlinear waveguides; surface conductivity and carrier phenomena; optical properties of surfaces;

    机译：非线性波导;表面电导率和载流子现象;表面的光学性质;

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