高精细度光学腔的控制及应用

项目名称： 高精细度光学腔的控制及应用

项目编号： No.60808006

项目类型： 青年科学基金项目

立项/批准年度： 2009

项目学科： 原子能技术

项目作者： 李刚

作者单位： 山西大学

项目金额： 23万元

中文摘要： 高精细度光学腔的精确控制是其在量子光学、量子信息、光与物质非线性作用研究和若干超灵敏测量的基础。利用腔长精确控制的高品质腔和原子组成的系统是研究单原子动力学特性测量和单光子产生的有效途径。本项目研究内容包括：1）设计和搭建精细度大于10 万的可用于产生强耦合腔与原子效应的光学F-P（Fabry-Perot）腔，并实现10^(-13)m 量级的腔长锁定与控制；2）通过高精细度光学F-P 腔的透射光场研究冷原子在微光学腔中的动力学特性；3）研究在腔内产生尺度在数微米的光学偶极阱并长时间俘获原子的途径；4）基于受控高精细度光学腔获得单光子源的方法。高精细度光学腔的控制不但对于微传感器、单粒子超灵敏检测、微位移和振动以及热噪声的监测与控制有重要实际应用，而且对寻求以腔-原子系统实现量子信息的新途径具有重要意义。

中文关键词： 高精细度光学腔;光学偶极阱;单原子测量

英文摘要： Precision control of high-finesse cavity is a basic technique for quantum optics, quantum information science, nonlinear effect research between light and matters, and ultra-sensitive measurement. A strong coupling system with a precisely controlled high-finesse F-P cavity and single atoms provides an efficient method for studying single atom movements and a single photon source. This project will cover following research topics: 1) Design and build Fabry-Perot (F-P) cavities with finesse over 100000, in which the strong coupling between atoms and photons can be achieved, and realize cavity length conrol on 10^(-13) m level; 2) Research movement of intracavity cold atoms by using of the transmitted light; 3) Explore new ways to capture atoms in the cavity by means of intracavity micrometer-size dipole trap. 4) Attempt to obtain single photons source based on a well controled high-finesse cavity. The controlling of the high finesse cavity not only stands important application prospects in the fields of micro-sensors, detection of single particles, observation and control the micro displacement and thermal noise, but also is an basic step to explore new ways for quantum information realization by cavity-atom systems.

英文关键词： High finesse optical cavity; Optical dipole trap; single atoms measurement