87Rb冷原子EIT介质中光学信号存储与释放的实验研究  

Experimental Investigation of Optical Storage and Release in EIT Medium of ^(87)Rb Cold Atom

作　　者：赵兴波[1] 徐忠孝[1] 张利军[1] 武跃龙[1] 李淑静[1] 王海[1] 

机构地区：[1]量子光学与光量子器件国家重点实验室,山西大学光电研究所,山西太原030006

出　　处：《量子光学学报》2010年第3期196-201,共6页Journal of Quantum Optics

基　　金：国家自然科学基金(10874106,60821004,10904086);国家基础研究项目基金(2006CB921103);山西省自然科学基金(2007011004,2010021003-1)

摘　　要：在87Rb冷原子介质中,利用电磁感应透明(EIT)动力学过程,实现了光学信号的存储与释放。实验研究了Larmor进动导致的释放信号崩塌和复原现象,结果表明,当提供量子化轴的磁场超过100 mG时,实验测量得到的拉莫尔周期与理论计算结果较好的相符,这为下一步开展量子存储研究提供了实验基础。Optical storage and release is achieved by using electromagnetically induced transparency （EIT） dynamics in cooled 87 Rb atoms medium. The collapses and revivals of the released signal caused by Larmor precession is studied in the experiment. The results show the measured Larmor periods are in agreement with theoretical predictions when the provided magnetic field along quantization axis is over 100 mG, which provide the experimental foundation for quantum storage research in the future.

关 键 词：冷原子 电磁感应透明 光存储 Larmor进动过程 

分 类 号：O431[机械工程—光学工程]