文献类型：期刊文献

英文题名：Phase control of coherent pulse propagation and switching based on electromagnetically induced transparency in a four-level atomic system

作者：Qi, Yihong[1,2];Niu, Yueping[1,2];Zhou, Fengxue[2];Peng, Yandong[2];Gong, Shangqing[1,2]

机构：[1]E China Univ Sci & Technol, Dept Phys, Shanghai 200237, Peoples R China;[2]Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China

年份：2011

卷号：44

期号：8

外文期刊名：JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS

收录：;EI(收录号：20111613925203);WOS:【SCI-EXPANDED(收录号:WOS:000289411700010)】；

基金：We express our gratitude to the anonymous referees for their helpful comments and suggestions. This work is supported by the National Natural Science Foundation of China (grant nos 60978013 and 60708008), the Key Basic Research Foundation of Shanghai (grant no 08JC1409702) and the Shanghai Commission of Science and Technology with grant no 10530704800.

语种：英文

外文关键词：Virtual storage - Maxwell equations

摘要：We investigate the propagation and control of a weak probe laser pulse in a tripod-type four-level atomic system with a quantum loop scheme. The propagation of the probe pulse depends sensitively on the relative phase of the driving fields. By numerically solving the coupled Maxwell-Bloch equations, it is shown that the dynamic control and switching operation of the probe pulse are possible via changing the relative phase of the driving fields. This work may provide a useful reference for designing optical switching and optical storage devices.