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囚禁冷原子或冷分子的可控制光学八阱及其光学晶格
  • 期刊名称：《中国激光》，35（7），1017-1023（2008）
  • 时间：0
  • 分类：O436[机械工程—光学工程;理学—光学;理学—物理]
  • 作者机构：[1]东华理工大学物理系,江西抚州344000, [2]华东师范大学物理系光谱学与波谱学教育部重点实验室,上海200062, [3]南通大学物理系,江苏南通226007
  • 相关基金：国家自然科学基金（10174050,10374029,10674047）,国家自然科学基金重点项目（10434060）,国家科技部量子调控重大基础研究计划项目（2006CB921604）和上海市重点学科以及教育部211专项基金项目资助课题.
  • 相关项目：冷分子光学的探索
关键词： 原子分子光学, 原子分子囚禁, 可控制光学八阱, 二元π相位板, atom or molecule optics, atom or molecule trap, controllable eight-well optical trap, binary π-phase plate
中文摘要：

提出了一种利用单束平面光波照明二元“相位板与透镜组合系统实现冷原子或冷分子囚禁的可控制光学八阱的方案，计算了光学势阱的光强分布和可控光学八阱的几何与光学特征参数、强度梯度及其曲率；讨论了从光学八阱到四阱或到双阱的演化过程。研究表明，通过相对于透镜移动二元“相位板可实现光学八阱到四阱或到双阱的连续双向演化。讨论了利用该可控光学八阱组成二维光学品格的方案。

英文摘要：

We propose a novel scheme to form a controllable eight-well optical trap for cold atoms or molecules by using an optical system of a binary π-phase plate and a lens illuminated by a plane light wave, We calculate the intensity distribution of the eight-well optical trap and the characteristic parameters of the eight-well trap （including geometric parameters, the intensity distribution, intensity gradients, and their curvatures）, and discuss the evolution process of the optical trap from eight-well to four-well or from eight-well to double-well, The result shows that the proposed eight well trap can be continuously changed into a four-well or double-well trap by moving the π- phase plate, We discuss the controllable optical lattice of eight-well which comes from combination of binary π-phase plate illuminated by single light beam and the rectangle lens combined system.

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