光学学报, 2008, 28 (2): 211, 网络出版: 2008-03-24   

一种新颖的实现冷原子或冷分子囚禁的可控制光学四阱及其二维光学晶格

A Novel Controllable Four-Well Optical Trap for Cold Atoms or Molecules and Its Two-Dimensional Optical Lattices
作者单位
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
摘要
原子光学晶格为精确操控中性原子和研究某些基本物理问题提供了一种方法。提出了一种利用单光束照明余弦型振幅光栅与透镜组合系统实现冷原子或冷分子囚禁的可控制光学四阱新方案,计算了四阱的光强分布,讨论了从光学四阱到双阱或单阱的演化过程,并导出了光学四阱的几何参量、光强分布、强度梯度及其曲率与光学透镜系统参量间的解析关系,获得了四阱间距与光栅空间频率的关系。研究表明通过改变余弦光栅的空间频率即可实现从光学四阱到双阱或单阱的连续双向演化。
Abstract
Atomic optical lattices offer a method for manipulating neutral atoms accurately and study on several basic problems in physics. We propose a novel scheme to form a controllable four-well optical trap for cold atoms or molecules by using an optical system composed of an amplitude cosine grating and a lens illuminated by a plane light wave. We calculate the intensity distribution of the four-well optical trap, discuss the evolution process of the optical trap from four wells to double wells or single well, and derive the analytical relations between the characteristic parameters of the four-well trap (including geometric parameters, intensity distribution, intensity gradients and their curvatures) and the parameters of the optical lens system. The study shows that this four-well trap can continuously evolve into a double-well or single-well one by changing space frequency of the cosine grating, and the dependence of the distance between the trapping centers of the four wells or two ones on the grating space frequency is obtained.

陆俊发, 纪宪明, 周琦, 印建平. 一种新颖的实现冷原子或冷分子囚禁的可控制光学四阱及其二维光学晶格[J]. 光学学报, 2008, 28(2): 211. Lu Junfa, Ji Xianming, Zhou Qi, Yin Jianping. A Novel Controllable Four-Well Optical Trap for Cold Atoms or Molecules and Its Two-Dimensional Optical Lattices[J]. Acta Optica Sinica, 2008, 28(2): 211.

本文已被 8 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!