Optical microcavities have widely been employed to enhance either the optical excitation or the photon emission processes for boosting light-matter interactions at the nanoscale. When both the excitation and emission processes are simultaneously facilitated by the optical resonances provided by the microcavities, as referred to the dual-resonance condition in this article, the performances of many nanophotonic devices approach to the optima. In this work, we present versatile accessing of dual-resonance conditions in deterministically coupled quantum-dot (QD)-micropillars, which enables emission from neutral exciton (X)—charged exciton (CX) transition with improved single-photon purity. In addition, the rarely observed up-converted single-photon emission process is achieved under dual-resonance conditions. We further exploit the vectorial nature of the high-order cavity modes to significantly improve the excitation efficiency under the dual-resonance condition. The dual-resonance enhanced light-matter interactions in the quantum regime provide a viable path for developing integrated quantum photonic devices based on cavity quantum electrodynamics (QED) effect, e.g., highly efficient quantum light sources and quantum logical gates.

光学微腔已广泛用于增强光学激发或光子发射过程，以增强纳米尺度的光与物质的相互作用。当微腔提供的光学谐振同时促进激发和发射过程时（如本文中提到的双谐振条件），许多纳米光子器件的性能接近最佳值。在这项工作中，我们提出了确定性耦合量子点（QD）微柱中双共振条件的多功能访问，这使得能够从中性激子（X）-带电激子（CX）跃迁中发射，并提高单光子纯度。此外，在双共振条件下实现了罕见的上转换单光子发射过程。我们进一步利用高阶腔模的矢量性质来显着提高双谐振条件下的激发效率。量子态中双共振增强的光与物质相互作用为开发基于腔量子电动力学（QED）效应的集成量子光子器件（例如高效量子光源和量子逻辑门）提供了可行的途径。