光脉冲在电磁感应介质中的超慢群速与负群速传播实验研究  

Experimental Investigation on Slow Light and Optical Pulse Propagation with Negative Group Velocity in the Electromagnetically Induced Medium

作　　者：陈徐宗[1] 肖峰[1] 李路明[1] 彭翔[1] 刘成[1] 张宇 

机构地区：[1]北京大学信息科学技术学院量子电子学研究所量子信息与测量教育部重点实验室,北京100871

出　　处：《中国传媒大学学报（自然科学版）》2004年第S1期19-26,共8页Journal of Communication University of China：Science and Technology

摘　　要：报道我们通过实验观察到了光脉冲在铯原子气体电磁感应透明(EIT)介质中减慢(减到了c/30000)和在电磁感应吸收(EIA)介质中的负群速传播(-c/3000)现象。In this paper we report that we observed slow light of the optical pulse in the EIT medium and superluminal phenomena or negative group velocity of the pulse in the EIA medium, the speed of light in EIT medium was c/30000 and the speed of light in EIA was - c/3000. EIT and EIA was observed in Zeeman hyperfine structure system of cesium atoms.

关 键 词：电磁感应透明 电磁感应吸收 光速减慢 负群速 

分 类 号：O431.2[机械工程—光学工程]