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首页> 外文期刊>Optical engineering >Tunable midinfrared wavelength selective structures based on resonator with antisymmetric parallel graphene pair
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Tunable midinfrared wavelength selective structures based on resonator with antisymmetric parallel graphene pair

机译：基于带有不对称平行石墨烯对的谐振腔的可调中红外波长选择结构

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摘要

A parallel graphene layer pair arranged in an antisymmetric configuration coupled through a cavity resonator is proposed and analyzed by the analytical method and the numerical finite-difference time-domain method. The structure operates as a bandpass filter in the midinfrared region. The feature, as the result of the wavelength selective property of the cavity resonator, can be tuned by varying the length of the resonator, the lateral coupling distance between the graphene layers, the dielectric refractive index of material inside the resonator, and, the most interesting, the chemical potential of the graphene layers. The proposed structure can be promoted to power splitters and refractive index sensors by proper designs. Various power division ratios can be realized by changing the relative positions and/or the chemical potentials of the output waveguides. The investigated components can be utilized in the design of midinfrared nanoscale photonic integrated circuits.
机译：提出并通过解析方法和数值时域有限差分法分析了通过腔谐振器耦合成反对称结构的平行石墨烯层对。该结构在中红外区域用作带通滤光片。通过改变谐振腔的长度，石墨烯层之间的横向耦合距离，谐振腔内部材料的介电折射率，以及最大的谐振腔谐振腔的波长选择特性，可以调整该特性。有趣的是，石墨烯层的化学势。通过适当的设计，可以将提出的结构推广到功率分配器和折射率传感器。可以通过改变输出波导的相对位置和/或化学势来实现各种功率分配比。研究的组件可用于中红外纳米级光子集成电路的设计。

著录项

  • 来源
    《Optical engineering》 |2017年第6期|067102.1-067102.6|共6页
  • 作者

    Asgari Somayyeh; Dolatabady Alireza; Granpayeh Nosrat;

  • 作者单位

    K. N. Toosi University of Technology, Center of Excellence in Electromagnetics, Faculty of Electrical Engineering, Optical Communication Laboratory, Tehran, Iran;

    K. N. Toosi University of Technology, Center of Excellence in Electromagnetics, Faculty of Electrical Engineering, Optical Communication Laboratory, Tehran, Iran;

    K. N. Toosi University of Technology, Center of Excellence in Electromagnetics, Faculty of Electrical Engineering, Optical Communication Laboratory, Tehran, Iran;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    antisymmetric waveguide; graphene-based devices; power splitter; refractive index sensor; resonance filter;

    机译：反对称波导基于石墨烯的器件;功率分配器;折射率传感器共振滤波器;

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