冷原子EIT介质中光存储效率与再泵浦光强的关系  

The Relationship between Light Storage Efficiency and Repumping Intensity in Cold Atom Medium

作　　者：张志英[1] 武跃龙[1] 徐忠孝[1] 陈力荣 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》2013年第4期340-345,共6页Journal of Quantum Optics

基　　金：国家基础研究项目基金(2010CB923103);国家自然科学基金(10874106;60821004;11274211)

摘　　要：利用电磁感应透明效应(EIT)在87 Rb冷原子介质中进行了光学信号存储释放的实验研究。测量了信号光存储效率随冷却系统中再泵浦光功率的变化关系。结果表明:当再泵浦光从零开始增大时,存储效率随之增大而增大;再泵浦光功率超过一定强度时,存储效率开始降低。一个简单的分析说明了上述存储效率与再泵浦光强的关系。By using electromagnetically induced transparency（EIT）,we realized the optical signal storage and release in 87 Rb cold atom medium.We have got the curve of storage efficiency as a function of the repumping intensity in cooling system.Experimental results showed that：the storage efficiency increases with the repumping intensity,when it increases from zero;if the repumping intensity exceeds a certain intensity,the storage efficiency begins to decrease.A simple analysis interpreted the relationship between storage efficiency and the repumping intensity.

关 键 词：冷原子 电磁感应透明 光学厚度 存储效率 

分 类 号：O431[机械工程—光学工程]