论文标题
隙等离子体与二维激子之间在环境条件下以确定性的方式进行的强光相互作用
Strong light-matter interactions between gap plasmons and two-dimensional excitons at ambient condition in a deterministic way
论文作者
论文摘要
分层的二维（2D）半导体和GAP等离子体之间的强激子 - 平面相互作用显示出在环境条件下实现腔量子量子 - 电子学的巨大潜力。然而，实现与纳米腔的强大等离子体 - 脱落耦合仍然非常具有挑战性，因为层面积通常很小。在这里，我们报告了Bowtie的间隙模式与MOS $ _2 $层中具有金色辅助机械剥落的差距模式与激素模式之间的强大激烈的样本耦合，并在大区域层的金色辅助机械剥落和无损的湿传输技术。受益于超大模式的体积和强大的内部内部场，导致耦合的估计有效激子数量大大降低。在校正后的激子过渡偶极矩中，单层为单层的激子数量为40，为48层提取48层。我们的作品铺平了一种方法，可以在室温下与很少的激子与2D材料实现强连接。
Strong exciton-plasmon interaction between the layered two-dimensional (2D) semiconductors and gap plasmons shows a great potential to implement cavity quantum-electrodynamics in ambient condition. However, achieving a robust plasmon-exciton coupling with nanocavity is still very challenging, because the layer area is usually small with conventional approaches. Here, we report on a robust strong exciton-plasmon coupling between the gap mode of bowtie and the excitons in MoS$_2$ layers with gold-assisted mechanical exfoliation and the nondestructive wet transfer techniques for large-area layer. Benefiting from the ultrasmall mode volume and strong in-plane field, the estimated effective exciton number contributing to the coupling is largely reduced. With a corrected exciton transition dipole moment, the exciton numbers are extracted with 40 for the case of monolayer and 48 for 8 layers. Our work paves a way to realize the strong coupling with 2D materials with few excitons at room temperature.
