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Tunable graphene-silica hybrid metasurface for far-infrared frequency

机译:可调谐石墨烯-二氧化硅杂化超表面用于远红外频率

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摘要

We present graphene-based metasurface structure that is actively tuned over far infrared frequency range. Tunable metasurface is created by using single ring and double ring split ring resonator (SRR) and complementary split ring resonator (CSRR). Proposed metasurface structures are analysed over different graphene chemical potential. Results of different metasurface are compared in terms of their transmittance, reflectance, phase variation and phase difference. The modulation depth of the transmittance is achieved more than 90%. It is also observed that resonance response becomes stronger when higher chemical potential is applied to graphene metasurface. The designed graphene metasurface can be used as sensor, polarizer and modulator in modem photonics devices.
机译:我们提出了基于石墨烯的超表面结构,该结构在远红外频率范围内得到了积极的调整。通过使用单环和双环裂环谐振器(SRR)和互补裂环谐振器(CSRR)创建可调谐的超表面。在不同的石墨烯化学势下分析拟议的超表面结构。比较不同表面的结果的透射率,反射率,相位变化和相位差。透射率的调制深度达到90%以上。还观察到,当将较高的化学势施加到石墨烯超表面时,共振响应变得更强。设计的石墨烯超表面可用作现代光子学设备中的传感器,偏振器和调制器。

著录项

  • 来源
    《Optical Materials》 |2019年第5期|155-170|共16页
  • 作者单位

    Marwadi Educ Fdn Grp Inst, Dept Elect & Commun Engn, Rajkot 360002, Gujarat, India;

    Marwadi Educ Fdn Grp Inst, Dept Elect & Commun Engn, Rajkot 360002, Gujarat, India;

    Marwadi Educ Fdn Grp Inst, Dept Elect & Commun Engn, Rajkot 360002, Gujarat, India;

  • 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

    Graphene; Conductivity; Polarizer; Sensor; Absorber; Metasurface;

    机译:石墨烯;电导率;偏振器;传感器;吸收剂;元曲面;

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