The coupling between plasmonic nanocavity and quantum emitters has been a major focus of quantum optics and material science research over the last few years. In this work, using state-of-the-art first-principles calculations, we investigate the spatial distributions of the induced charge density and electric near-field enhancements of a nanosystem consisting of an aluminum nanotriangle interacting with the varying number of benzene molecules positioned at the nanotriangle tips. We find interesting modifications in the induced charge density and electric near-field enhancements with a remarkable sensitivity to the number of interacting benzene molecules and to the direction of light illumination. In a broader perspective, our quantum mechanical results provide quantitative access to the electric near-field enhancements at the nanoscale useful for designing ultra-small plasmonic devices.

在过去的几年中，等离子体纳米腔和量子发射器之间的耦合一直是量子光学和材料科学研究的主要重点。在这项工作中，我们使用最先进的第一原理计算方法，研究了由铝纳米三角形与不同数目的苯分子相互作用构成的纳米系统的感应电荷密度和电近场增强的空间分布在纳米三角形的尖端。我们发现了对感应电荷密度和电近场增强的有趣修改，并对相互作用的苯分子的数量和光照方向具有显着的敏感性。从更广泛的角度来看，