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arXiv 2106.01892physics.optics
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TMDC单分子层与单等离子体共振器的强耦合区和混合准正规模

Strong coupling regime and hybrid quasinormal modes of a single plasmonic resonator coupled to a TMDC monolayer

Chelsea Carlson, Robert Salzwedel, Malte Selig, Andreas Knorr, Stephen Hughes

摘要:

我们提出了一个严格的光子模式模型来描述一个单层的$\rm MoSe_2$和一个单一的金纳米粒子之间的强耦合。通过计算组合结构的三维混合准正规模式来量化强耦合的发生,从而可以准确地模拟光-物质相互作用,而无需调用通常的强耦合唯象理论。我们探索的混合准正规模式作为间隙大小和温度的函数,并发现光谱分裂的范围约为80-110毫电子伏,没有拟合参数的材料模型。我们还展示了混合模式如何表现出Fano样的共振和量化的混合模式的复杂极点,以及从嵌入的偶极子发射器的Purcell因子共振。这些影响不能用通常的启发式简正模理论来描述。

英文摘要:

We present a rigorous photonic mode model to describe the strong coupling between a monolayer of $\rm MoSe_2$ and a single gold nanoparticle. The onset of strong coupling is quantified by computing the three-dimensional hybrid quasinormal modes of the combined structure, allowing one to accurately model light-matter interactions without invoking the usual phenomenological theories of strong coupling. We explore the hybrid quasinormal modes as a function of gap size and temperature and find spectral splittings in the range of around 80-110 meV, with no fitting parameters for the material models. We also show how the hybrid modes exhibit Fano-like resonances and quantify the complex poles of the hybrid modes as well as the Purcell factor resonances from embedded dipole emitters. These effects cannot be described with the usual heuristic normal mode theories.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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