四能级原子系统中电磁感应吸收的相位控制

王丽; 李根全; 肖绍武; 郑长波

doi:10.7498/aps.59.8512

摘要

在以三个电偶极跃迁构成简并N型四能级系统中,利用密度矩阵方程计算了介质对探测场的吸收,研究了激光场拉比相位对吸收的影响.结果表明:介质对探测场的吸收和放大取决于控制场和信号场的拉比相位,且吸收和放大随控制场、信号场的拉比相位改变而作周期性变化,周期为2π;而探测场的拉比相位变化对吸收没有影响.同时,控制场、信号场拉比相位对吸收的影响是相同的,而且拉比相位主要影响原子相干,对原子布居影响不大.

关键词:

In this paper, we have calculated the absorption of the probing field in a N-type four-level atomic system with three dipole transitions using density matrix equation. The results indicate that the absorption or amplification of the probing field depends on the Rabi phases of the control field and signal field under introducing laser field Rabi phase, and the absorption or amplification periodically changes with the Rabi phases of the control field and the signal field at a period of 2π. The Rabi phase change of the probe field has no effect on the absorption. In addition, the effect of the signal field Rabi phase on absorption is the same as that of the control field Rabi phase on absorption. Rabi phase has an effect mainly on atomic coherence but little on atomic population.

Keywords:

electromagnetically induced absorption /
phase control /
spontaneous transfer of atomic coherence /
N-type four-level atomic system

作者及机构信息

1.
南阳师范学院物理与电子工程学院,南阳 473061

基金项目: 河南省自然科学基金(批准号:072300410490)和河南省教育厅自然科学研究计划(批准号:2008B140009)资助的课题.

Authors and contacts

1.
College of Physics and Electronics Engineering, Nanyang Normal University, Nanyang 473061, China

参考文献

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施引文献

[1]	Vemuri G, Vasavada K V, Agarwal G S 1995 Phys. Rev. A 52 3228
[2]	Gray H R, Whitley R M, Stroud C R 1978 Opt. Lett. 3 218
[3]	Harris S E 1997 Phys. Today 50 36
[4]	Wu Y, Yang X 2005 Phys. Rev. A 71 053806
[5]	Akulshin A M, Barreiro S, Lezama A 1998 Phys. Rev. A 57 2996
[6]	Lezama A, Barreiro S, Akulshin A M 1999 Phys. Rev. A 59 4732
[7]	Zhang Y L, Jiang L, Sun Z R, Ding L E, Wang Z G 2003 Chin. Phys. 12 174
[8]	Ye C Y, Zibrov A S 2002 Phys. Rev. A 65 023806
[9]	Yang L J, Zhang L S, Li X L, Feng X M, Fu G S, Han L 2004 Proc. SPIE 5631 196
[10]	Hou B P, Wang S J, Yu W L, Sun W L 2006 Phys. Lett. A 352 462
[11]	Liu Z D, Wu Q 2004 Acta Phys. Sin. 53 2970 (in Chinese) [刘正东、武强2004 物理学报 53 2970]
[12]	Zhang L Y, Liu Z D 2005 Acta Phys. Sin. 54 3641 (in Chinese) [张丽英、刘正东2005 物理学报 54 3641]
[13]	Wison E A, Manson N B, Wei C J, Yang L J 2005 Phys. Rev. A 72 063813
[14]	Yang L J, Zhang L S, Li X L, Li X W, Guo Q L, Han L, Fu G S 2006 Acta Phys. Sin. 55 5206 (in Chinese) [杨丽君、张连水、李晓莉、李晓苇、郭庆林、韩理、傅广生2006 物理学报 55 5206]
[15]	Yang S H, Zhang H Z, Guo X Z, Wang D, Gao J Y 1998 Acta Phys. Sin. 47 931 (in Chinese) [杨苏辉、张汉壮、国秀珍、王冬、高锦岳1998 物理学报 47 931]
[16]	Harris S E, Yamamoto Y 1998 Phys. Rev. Lett. 81 3611
[17]	Wang L, Song H Z 2006 Acta Phys. Sin. 55 4145 (in Chinese) [王丽、宋海珍 2006 物理学报 55 4145]
[18]	Wang K, Gu Y, Gong Q H 2007 Chin. Phys. 16 130
[19]	Niu Y P, Gong S Q 2006 Phys. Rev. A 73 053811
[20]	Wang L, Hu X M 2004 Acta Phys. Sin. 53 2544 (in Chinese) [王丽、胡响明 2004 物理学报 53 2544]
[21]	Taichenachev A V, Tumaikin A M, Yudin V I 2000 Phys. Rev. A 61 011802
[22]	Du Y J, Zhang J X 2006 Acta Sin. Quantum Opt. 12 14 (in Chinese)[杜英杰、张俊香2006 量子光学学报 12 14]
[23]	Wang L, Song H Z, Xiao S W 2008 Acta Opt. Sin. 28 194 (in Chinese) [王丽、宋海珍、肖绍武 2008光学学报28 194]
[24]	Wang L, Yang X Q, Xiao S W 2008 Acta Sin. Quantum Opt. 14 267(in Chinese)[王丽、杨兴强、肖绍武 2008 量子光学学报 14 267]
[25]	Ma H, Bu F G, Qiao H X, Tong D M, Fan X J 2008 Acta Phys. Sin. 57 206 (in Chinese) [马慧、卜凡阁、乔红霞、仝殿民、樊锡君2008 物理学报 57 206]
[26]	Li X Q, Wang J, Wang F, Hu X M 2008 Acta Phys. Sin. 57 2236 (in Chinese) [李晓奇、王剑、王飞、胡响明2008 物理学报 57 2236]

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