量子光学学报, 2013, 19 (4): 340, 网络出版: 2013-12-04
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
冷原子 电磁感应透明 光学厚度 存储效率 cold atoms electromagnetically induced transparency optical density storage efficiency
摘要
利用电磁感应透明效应(EIT)在87Rb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。
Abstract
By using electromagnetically induced transparency (EIT), we realized the optical signal storage and release in 87Rb 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.
张志英, 武跃龙, 徐忠孝, 陈力荣, 李淑静, 王海. 冷原子EIT介质中光存储效率与再泵浦光强的关系[J]. 量子光学学报, 2013, 19(4): 340. ZHANG Zhi-ying, WU Yue-long, XU Zhong-xiao, CHEN Li-rong, LI Shu-jing, WANG Hai. The Relationship between Light Storage Efficiency and Repumping Intensity in Cold Atom Medium[J]. Acta Sinica Quantum Optica, 2013, 19(4): 340.