%0 Journal Article
%T Experimental investigation of slow light propagation in degenerate two-level system
%A Wang Li-Rong
%A Zhao Yan-Ting
%A Ma Jie
%A Zhao Jian-Ming
%A Xiao Lian-Tuan
%A Jia Suo-Tang
%A <br>汪丽蓉
%A 赵延霆
%A 马杰
%A 赵建明
%A 肖连团
%A 贾锁堂
%J 中国物理 B
%D 2006
%I 
%X Slowing a light pulse in a degenerate two-level system is observed with a double-frequency sweeping technique. The effects of coupling beam intensity, cell temperature and frequency detunings of the coupling and probe beams in resonance, on the slowing of light propagation in such a system are investigated. It is found that group velocities depend strongly on polarization combinations. A group velocity $v_{\rm g}$=6760m/s of light pulses in caesium vapour is obtained under the optimal parameters.
%K electromagnetically induced transparency
%K time delay
%K group velocity<br>电磁诱导透明性
%K 时间延迟
%K 群速
%K 双频扫描特性
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=CB3C914DA6CE802C10A639BA8FC64858&yid=37904DC365DD7266&vid=23CCDDCD68FFCC2F&iid=0B39A22176CE99FB&sid=683005D16807E4FE&eid=0918129209B14F3E&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=26