论文标题
散装过渡金属二核苷的连续体中的激子和准结合状态之间的强耦合
Strong coupling between excitons and quasi-Bound states in the continuum in the bulk transition metal dichalcogenides
论文作者
论文摘要
我们研究了散装WS $ _2 $ metasurface中连续共振（BIC）共振的激子和准结合状态之间的强耦合。在这里，我们采用大量WS $ _2 $来构建超薄纳米型跨面，支持对称性保护的磁性偶极子（MD）Quasi-BIC共振，它可以与激子自脑相处并导致在没有必要外部载体的情况下实现强大的轻度互动。这种强的耦合可以以159 MeV的大量狂犬分裂为特征，并且在吸收光谱中出现了明显的抗跨行为。此外，我们通过构建包括剩余激子在内的哈密顿模型来分析此类光 - 物质耦合，并通过准BIC共振的可调性辐射丢失从弱耦合到强耦合方案的相互作用。我们的结果具有在室温下操纵激子 - 摩尔体子的巨大潜力，并为利用应用中强耦合的光子设备提供了有希望的前景。
We investigate the strong coupling between the excitons and quasi-bound states in the continuum (BIC) resonance in a bulk WS$_2$ metasurface. Here we employ the bulk WS$_2$ to construct an ultrathin nanodisk metasurface, supporting the symmetry-protected magnetic dipole (MD) quasi-BIC resonance, which can self-hybridize with the excitons and lead to a strong light-matter interaction enhancement within the structure without the necessity for an external cavity. This strong coupling can be charactered by the considerable Rabi splitting of 159 meV and the clearly anti-crossing behavior appeared in the absorption spectrum. Furthermore, we analyze such light-matter coupling by constructing a Hamiltonian model including the surplus excitons, and tune the interaction from weak coupling to strong coupling regimes via the tunability radiation loss of the quasi-BIC resonance. Our results have great potential for manipulating the exciton-polaritons at room temperature, and provide a promising prospect for photonic devices that exploit strong coupling in applications.
