Photon statistics in semiconductor nanostructures

本研究项目的目的是研究单半导体量子点、微腔量子点和微腔激光器发出的光的光子统计。通过光子相关测量，研究基于单量子点的柱状微腔的单光子发射与微腔模式的共振。我们将研究单光子发射的纯度、效率、偏振特性和最大调制频率。该项目的另一个目标是研究从单个量子点产生纠缠光子。我们将测试这种可能性，实验将显示光子的相关程度。此外，还研究了高ß-因子微腔激光器和强耦合态耦合量子点腔系统的光子统计特性。这些研究结果将为固态光源的未来发展奠定基础，这些光源可用于量子密码、量子计算和量子光刻等领域。此外，这种光源还可以探索量子力学的基本概念。

The goal of this research project is to study the photon statistics of the light emitted from single semiconductor quantum dots (QDs), QDs in microcavities, and microcavity lasers. Photon correlation measurements will be performed to study the single photon emission from a pillar microcavity based on a single quantum dot on resonance with the microcavity mode. We will investigate the purity, the efficiency, the polarization properties, and the maximum modulation frequency of the single photon emission. Another goal of the project is to study the generation of entangled photons from a single quantum dot. We will test this possibility and the experiments will show the correlation degree of the photons. Furthermore, the photon statistics of microcavity lasers with high ß-factors and coupled QD-cavity systems which are in the strong coupling regime will be investigated. The results from these investigations will form a fundamental basis for the future development of solid-state light sources which can be used e.g. for quantum cryptography, quantum computing, and quantum lithography. In addition, fundamental concepts of quantum mechanics can be explored with such kind of light sources.