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首页> 外文期刊>Optical engineering >Analysis of graphene-based half Maxwell fish-eye lens using effective index method
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Analysis of graphene-based half Maxwell fish-eye lens using effective index method

机译：有效指数法分析石墨烯基麦克斯韦鱼眼镜头

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摘要

Graphene is used as an ideal platform for plasmonic optical devices due to its unique electrical and optical characteristics. We proposed a unique effective index method to evaluate a graphene-based half Maxwell fish-eye (HMFE) plasmonic lens on a single flake of graphene, which can focus a surface plasmon polariton plane wave and transform into a spherical wave. Similar to traditional optics, the proposed method can be used to investigate the focusing performance of an HMFE lens versus different parameters, including the incident frequencies, the discrete semiring numbers, the chemical potentials, and the size of the proposed lens. In addition, we use two proposed lenses to build an optical-coupling element, which can transform the beam of a plane wave into a different beam width. The proposed effective index method can be used as a reference in designing plasmonic optical devices with a variable effective index profile on a flake of graphene. The finite element method is employed to realize the numerical simulation, which demonstrates results almost consistent with our design methodology.
机译：石墨烯因其独特的电气和光学特性而被用作等离子光学设备的理想平台。我们提出了一种独特的有效折射率方法，用于在单片石墨烯上评估基于石墨烯的半麦克斯韦鱼眼（HMFE）等离子体激元透镜，该透镜可以聚焦表面等离子体激元平面波并转换为球面波。与传统光学类似，所提出的方法可用于研究HMFE透镜相对于不同参数的聚焦性能，这些参数包括入射频率，离散半环数，化学势和所提议透镜的尺寸。此外，我们使用两个建议的透镜来构建光学耦合元件，该元件可以将平面波的光束转换为不同的光束宽度。提出的有效折射率方法可以作为设计在石墨烯薄片上具有有效折射率分布可变的等离激元光学器件的参考。有限元方法被用来实现数值模拟，其结果几乎与我们的设计方法一致。

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  • 来源
    《Optical engineering》 |2014年第12期|127109.1-127109.7|共7页
  • 作者

    Huawei Zhuang; Fanmin Kong; Kang Li; Jia Zhao; Shiwei Sheng;

  • 作者单位

    Shandong University, School of Information Science and Engineering, Jinan 250100, China,Shandong Jianzhu University, School of Information and Electrical Engineering, Jinan 250101, China;

    Shandong University, School of Information Science and Engineering, Jinan 250100, China;

    Shandong University, School of Information Science and Engineering, Jinan 250100, China;

    Shandong University, School of Information Science and Engineering, Jinan 250100, China;

    Shandong University, School of Information Science and Engineering, Jinan 250100, China;

  • 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; plasmonic; effective index; half Maxwell fish-eye lens;

    机译：石墨烯等离子体有效指标半麦克斯韦鱼眼镜头;

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