Non-linear optical spectroscopy for studying carrier spins in quantum dots

用于研究量子点中载流子自旋的非线性光谱

• 批准号: 40956155
• 负责人: Professor Dr. Manfred Bayer
• 金额: --
• 依托单位: Rektorat
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2007
• 资助国家: 德国
• 起止时间: 2006-12-31 至 2013-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/40956155?language=en
• 关键词: Non; linear; optical; spectroscopy; studying

The goal of this extension proposal is to continue the experiments on quantum dot spin ensemble dynamics using multi-color pump&probe Faraday-rotation in an external magnetic field. In particular, we plan to study in detail recently observed coupling effects between distinct quantum dot spin ensembles which may lead to entanglement of the spins. To that end optical spin tomography shall be implemented. Also the coherence of these entangled states will be studied and tools for their coherent manipulation will be worked out. In addition, we plan to improve and continue our spin flip Raman scattering studies for obtaining a comprehensive understanding of the spin states in quantum dots. Also our optically detected NMR studies shall be carried on to complete the picture of nuclear Zeeman splitting in self-assembled quantum dots.

该扩展提案的目标是继续在外部磁场中使用多色泵浦和探针法拉第旋转进行量子点自旋系综动力学实验。特别是，我们计划详细研究最近观察到的不同量子点自旋系综之间的耦合效应，这可能导致自旋纠缠。为此，应实施光学自旋断层扫描。此外，还将研究这些纠缠态的相干性，并研究出相干操纵的工具。此外，我们计划改进并继续我们的自旋翻转拉曼散射研究，以全面了解量子点中的自旋态。此外，我们还将进行光学检测核磁共振研究，以完成自组装量子点中核塞曼分裂的图像。