Intensity Correlation Spectroscopy with ps-time resolution

本研究项目的目的是研究单个量子点或单个量子点分子与微谐振器受限光场的不同相互作用机制。第一个任务将是弱耦合状态下量子点自发发射的研究。将讨论增强和抑制以及发射中的相关性。我们还将探讨这些结构是否可以通过多激子的衰变来产生纠缠光子对。进一步，我们将研究这些结构是否可以获得强耦合状态。特别地，我们将研究在这种相互作用下发射光的量子相关性。为了达到这些目标，不同的光谱技术（时间分辨光致发光和时间分辨相关光谱）将被应用。这一研究结果将带来全新的物理见解，对新光源的开发或量子信息处理等不同领域产生影响。

The goal of this research project is the study of different interaction regimes of a single quantum dot or a single quantum dot molecule with the confined light field of a microresonator. The first task will be the study of the quantum dot spontaneous emission in the weak coupling regime. Both enhancement and suppression as well as correlations in the emission will be addressed. We will also explore, whether these structures can be used to create entangled photon pairs through the decay of multiexcitons. Further, we will study whether the regime of strong coupling can be obtained with these structures. In particular the quantum correlations of the emitted light in this interaction regime will be investigated. To reach these goals different spectroscopic techniques (time-resolved photoluminescence and time-resolved correlation spectroscopy) will be applied. The results will give fundamentally new physical insights which will have impact in such different fields as the development of new light sources or quantum information processing.