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首页> 外文期刊>Physical review >Plasmon-exciton polaritons in two-dimensional semiconductor/metal interfaces
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Plasmon-exciton polaritons in two-dimensional semiconductor/metal interfaces

机译：二维半导体/金属界面中的等离激子极化子

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摘要

The realization and control of polaritons is of paramount importance in the prospect of novel photonic devices. Here, we investigate the emergence of plasmon-exciton polaritons in hybrid structures consisting of a two-dimensional transition-metal dichalcogenide (TMDC) deposited onto a metal substrate or coating a metallic thin film. We determine the polaritonic spectrum and show that, in the former case, the addition of a top dielectric layer and, in the latter case, the thickness of the metal film can be used to tune and promote plasmon-exciton interactions well within the strong-coupling regime. Our results demonstrate that Rabi splittings exceeding 100 meV can readily be achieved in planar dielecrric/TMDC/metal structures under ambient conditions. We thus believe that this Rapid Communication provides a simple and intuitive picture to tailor strong coupling in plexcitonics with potential applications for engineering compact photonic devices with tunable optical properties.
机译：在新型光子器件的前景中，实现和控制极化子至关重要。在这里，我们研究了等离子激子激子在混合结构中的出现，该混合结构由沉积在金属基底上或涂覆金属薄膜的二维过渡金属二硫化碳（TMDC）组成。我们确定了极化波谱，并表明，在前一种情况下，增加了顶部介电层，在后一种情况下，可以使用金属膜的厚度来很好地调节和促进等离子体激子-激子相互作用。耦合机制。我们的结果表明，在环境条件下，在平面介电体/ TMDC /金属结构中可以轻松实现超过100 meV的Rabi分裂。因此，我们认为，这种快速通信提供了简单直观的图像，可以定制plexcitonics中的强耦合，并将其用于工程设计具有可调光学特性的紧凑型光子器件。

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  • 来源
    《Physical review》 |2018年第4期|041402.1-041402.6|共6页
  • 作者

    P. A. D. Goncalves; L. P. Bertelsen; Sanshui Xiao; N. Asger Mortensen;

  • 作者单位

    Center for Nano Optics, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark,Department of Photonics Engineering, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark,Center for Nanostructured Graphene, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark;

    Department of Photonics Engineering, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark;

    Department of Photonics Engineering, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark,Center for Nanostructured Graphene, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark;

    Center for Nano Optics, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark,Center for Nanostructured Graphene, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark,Danish Institute for Advanced Study, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark;

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