新颖操控冷原子/冷分子的组合三光学阱新方案及实验研究  

Theoretical and Experimental Study of a Novel Combinative Triple-Well Optical Trap for Triple-Species Cold Atoms or Molecules

作　　者：周琦[1,2] 陆俊发[1,2] 潘小青[3] 印建平[2] 

机构地区：[1]东华理工大学理学院,江西抚州344000 [2]华东师范大学精密光谱科学与技术国家重点实验室,上海200062 [3]江西理工大学理学院,江西赣州341000

出　　处：《光学学报》2014年第4期19-25,共7页Acta Optica Sinica

基　　金：国家自然科学基金(11274114,10374029,10674047);华东师范大学精密光谱科学与技术国家重点实验室开放基金

摘　　要：提出了一种构建可囚禁与操控三种冷原子或冷分子样品的光学三阱组的新方案,该方案采用常用的液晶空间光调制器作为分光器件,分光调制函数类似于二元相位光栅;对提出的方案进行了模拟实验,并研究了从光学三阱到单阱的双向演化过程。该光学三阱的模拟实验结果与理论方案相符,三阱的操控性好,有利于三种不同的冷原子或冷分子样品的装载与操控等相关实验研究。A novel scheme based on light diffraction to generate a triple-well optical trap for trapping and controlling triple-species samples of cold atoms or molecules is proposed. Specialized phase modulation similar to binary phase-grating is implemented by a diffraction device of liquid crystal spatial light modulator （LC-SLM）. A continuous and reversible evolution between single-well trap and triple-well trap is investigated. Corresponding experiments are performed and the results are in agreement with theories. The results show that the proposed scheme has a controllability advantage, which is beneficial to load and control triple-species samples in cold atoms or molecules experiments.

关 键 词：原子与分子物理学 冷原子囚禁与操控 组合三光阱 

分 类 号：O436[机械工程—光学工程]