半导体微/纳光腔与表面等离激元的两级相干耦合模式及其新型共振辐射机制

微米/纳米尺度上的光电子集成以及光子集成，是未来量子信息技术中的最重要领域之一。本项目在半导体微纳光腔与表面等离激元（SP）的耦合体系中，提出光子能量两级传递的“相干耦合”概念，研究光腔-SP-光腔的两级相干耦合的耦合模式及其新型共振辐射机制。SP与微纳光腔耦合形成具有新型电子集体震荡行为的微纳腔等离激元(Micro/Nano-Cavity Plasmon：MNCP)，其耦合的光子来自光腔谐振相干光；MNCP再相干反馈作用于光腔激子，形成的两级过程相干耦合导致光腔中的光能量放大，而不仅是通常认识的SP中能量放大。该过程与自发辐射和传统受激辐射（包括SP受激辐射）相比，形成了新型的SP相干耦合模式以及共振光辐射机制。通过本研究，揭示微纳光腔光子-电子-SP-光子之间的新型耦合行为和共振辐射机制，拓展光子-电子-光子作用模式的认识，探索新型共振辐射理论基础，有助于实现新型微纳腔共振辐射器件。

Optoelectronic integration and photon integration on the micro/nano scale are one of the most important areas of future quantum information technology. This project proposes the concept of "Coherent Coupling" of two-stage transfer of photon energy in the coupling system of semiconductor micro/nano optical cavity and surface plasmon (SP), and studies the coupling mode of two-level coherent coupling and the novel resonance radiation mechanism implemented in the system. This study proposes that when SP is coupled to a semiconductor micro/nano optical cavity, the formed Micro/Nano-Cavity Plasmon (MNCP) has a new type of collective electronic oscillation behaviour, in which the coupled photons come from the optical cavity resonant coherent light, and then MNCP further feedbacks the energy to the excitons in the optical cavity. When the frequency and phase are strictly transmitted, it forms the Coherent Coupling containing two stages of processes. Finally, the light energy in the optical cavity is concentrated and amplified, not only the energy in SP as the ordinary theory. The two-stage coherent coupling process will cause a significant change in the mode of photon-electron-photon interaction in this coupling system. Compared with spontaneous radiation and traditional stimulated radiation (including SP stimulated radiation), a new type of SP coherent coupling mode and resonant light Radiation mechanism are created. Through the research of this project, the new coupling behaviour and resonance radiation mechanism between the photon-electron-SP-photon in the micro-nano optical cavity are revealed, the understanding of the photon-electron-photon interaction mode is expanded, and the theoretical basis of the new resonance radiation is explored, which will help to realize novel micro-nano cavity resonance radiation devices.