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Investigation of plasmonic whispering gallery modes of graphene equilateral triangle nanocavities

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Abstract

In this paper, a graphene-based equilateral triangle nanocavity is proposed and numerically investigated. The relationship between the mode characteristics and the nanocavity parameters, such as the geometry of nanocavity and the chemical potential of graphene, is systematically explored. A high-order plasmonic WGM (whispering gallery mode) with a high quality factor of 147.93 is obtained in our nanocavity with a wavelength of around 1.415 µm in free space, with a corresponding Purcell factor as high as 7.067 × 108. The proposed plasmonic WGM nanocavity could be a key component of the high density plasmonic integrated circuits due to its ultra-compactness and performances.

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Authors and Affiliations

  1. College of Information Science and Engineering, Huaqiao University, Xiamen, 361021, China

    Yixin Huang, Weibin Qiu, Shangxin Lin, Jing Zhao, Houbo Chen & Jia-xian Wang

  2. Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China

    Qiang Kan & Jiao-qing Pan

Authors
  1. Yixin Huang
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  2. Weibin Qiu
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  3. Shangxin Lin
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  4. Jing Zhao
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  5. Houbo Chen
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  6. Jia-xian Wang
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  7. Qiang Kan
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  8. Jiao-qing Pan
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Correspondence to Weibin Qiu.

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Huang, Y., Qiu, W., Lin, S. et al. Investigation of plasmonic whispering gallery modes of graphene equilateral triangle nanocavities. Sci. China Inf. Sci. 59, 042413 (2016). https://doi.org/10.1007/s11432-016-5529-5

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  • DOI: https://doi.org/10.1007/s11432-016-5529-5

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