纳米微腔中光与物质的相互作用及其调控研究

项目名称： 纳米微腔中光与物质的相互作用及其调控研究

项目编号： No.11304040

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 数理科学和化学

项目作者： 任祺君

作者单位： 复旦大学

项目金额： 30万元

中文摘要： 纳米微腔结构中光与物质的相互作用是当今凝聚态物理研究的热点问题之一，由于光子与辐射体之间可控的耦合效应而展现出丰富的物理现象，使其在新型光电子器件以及量子信息应用等领域具有巨大的应用价值。本项目拟在前期已经取得的进展基础上，基于半导体量子点和纳米线（例如ZnO，CdSe等），结合微纳加工技术制备与加工出高质量的微腔-量子点（纳米线）结构，利用显微荧光光谱，角分辨荧光光谱和时间分辨光谱等探测手段研究这些耦合体系在不同的条件（微腔结构，温度，磁场等）下辐射体和自旋态与微腔的耦合效应及其动力学过程，并且对耦合强度实现多维度的有效调控。实验上实现单光子和偏振单光子的发射与探测，并且力争实现光子-激子或表面等离子体-激子的强耦合效应，为新型光电子器件应用奠定坚实的基础。

中文关键词： 微腔；量子点；耦合；表面等离子体；调控

英文摘要： Light-matter interaction in semiconducting and metal microcavities is one of the most important directions in condensed matter physics. Due to a variety of novel physical properties induced by the controllable coupling between the electromagnetic field confined in the microcavities and the emitters in host materials, the coupled systems promise great opportunities in a broad range of applications such as novel opto-electronic devices and quantum information processing. In this project, based on the results we have already achieved, we will use semiconducting quantum dots and nanowires (such as ZnO, CdSe, etc), and embed them into high quality microcavities by advanced nano-fabrication techniques. The coupling effects as well as the dynamics in the systems will be studied by using micro-photoluminescence, angle-resolved and time-resolved spectroscopy, etc. By designing new microcavity structures, varying external parameters such as temperature and magnetic field, we intend to manipulate the coupling between the emitters and the optical modes (surface plasmon modes) in a controlled manner. We will try to realize the single photon and polarized single photon emission and detection, and even the strong coupling effect in the coupled systems. The research of this project will pave the way for applications in novel de

英文关键词： microcavity；quantum dots；coupling；Surface Plasmon；manipulation