Y型四能级系统中Doppler展宽对真空诱导相干性相关的探测场吸收的影响

贾克宁; 梁颖; 刘中波; 仝殿民; 樊锡君

doi:10.7498/aps.61.054207

摘要

利用数值计算结果,讨论了在Y型四能级原子系统中Doppler展宽对与真空诱导相干性(VIC) 相关的探测场吸收性质的影响.研究结果表明: 当无Doppler展宽时,只有不存在VIC时才可能产生电磁感应透明(EIT)现象; VIC将导致探测场吸收的明显改变和增益产生;在VIC存在和不存在两种情况中,吸收曲线都具有关于探测场失谐对称的双峰结构. 当有Doppler展宽时,在VIC存在和不存在两种情况中都能产生EIT现象; VIC仍将导致探测场吸收的明显改变和增益产生;不管是否存在VIC,探测场吸收都具有以下特征:吸收曲线不再具有关于探测场失谐的对称性且随Doppler展宽宽度(D)值的增大而逐渐从双峰结构变为单峰结构,探测场吸收不随D值的增大而单调增大或减小,在探测场和驱动场的传播方向相反时可获得比传播方向相同时更小的探测场吸收.

关键词:

Abstract

Using the numerical result, the influence of the Doppler broadening on the vacuum induced coherence (VIC) related probe field absorption is discussed. It is shown that if there exists no Doppler broadening, only when VIC is absent can the electromagnetically induced transparency (EIT) phenomenon occur; VIC leads the probe field absorption to vary obviously and the gain to appear; in both cases with and without VIC, the absorption curve has a double-peak structure which is symmetrical about the probe detuning. If there exists the Doppler broadening, in both cases with and without VIC, EIT phenomenon can always occur; VIC still leads the probe field absorption to vary obviously and the gain to appear; no matter whether the VIC is present. The probe field absorption has the following characteristics: the absorption curve no longer has symmetry about the probe field detuning and changes gradually from the double-peak structure to the single-peak structure with Doppler broadening width (D) increasing; the probe field absorption does not monotonically increase or decrease with D increasing; the probe field absorption, when the probe and driving fields propagate along the opposite directions, is smaller than that when the probe and driving fields propagate along the same directions.

Keywords:

作者及机构信息

1.
山东师范大学物理与电子科学学院, 济南 250014;

2.
山东大学物理学院, 济南 250100

基金项目: 国家自然科学基金(批准号: 11175105)资助的课题.

Authors and contacts

1.
College of Physics and Electronics, Shandong Normal University, Jinan 250014, China;

2.
School of Physics, Shandong University, Jinan 250100, China

Funds: Project supported by the National Natural Science Foundation of China (Grant No. 11175105).

参考文献

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施引文献

[1]	Harris S E, Field J E, Imamoglu A 1990 Phys. Rev. Lett. 64 1107
[2]	Boller K J, Imamoglu A, Harris S E 1991 Phys. Rev. Lett. 66 2593
[3]	Mompart J, Corbalan R 2000 J. Opt. B: Quant. Semiclas. Opt. 2R4
[4]	Matsko A B, Kocharovskaya O, Rostovtsev Y, Welch G R, ZibrovA S, Scully M O 2001 Adv. At. Mol. Opt. Phys. 46 191
[5]	Phillips D F, Fleischhauer A, Mair A 2001 Phys. Rev. Lett. 86 783
[6]	Harris S E, Hau L 1999 Phys. Rev. Lett. 82 4611
[7]	Harris S E 1997 Phys. Today 50 32
[8]	Marangos J P 1998 J. Modern Opt. 45 471
[9]	Roy D 2011 Phys. Rev. Lett. 106 053601
[10]	Yan D, Gao J Y, Bao Q Q, Yang H, Wang H, Wu J H 2011 Phys.Rev. A 83 033830
[11]	Bahrim C, Nelson C 2011 Phys. Rev. A 83 033804
[12]	Huang S, Agarwal G S 2011 Phys. Rev. A 83 023823
[13]	Niu J Y, Pei L Y,Wu L A, Fu P M 2010 Chin. Phys. B 19 113209
[14]	Ba N, Gao J W, Tian X X, Wu X, Wu J H 2010 Chin. Phys. B 19074208
[15]	Wang L, Li G Q, Xiao S W, Zheng C B 2010 Acta Phys. Sin. 598512 (in Chinese) [王丽, 李根全, 肖绍武, 郑长波 2010 59 8512]
[16]	She Y C, Wang D L, Ding J W 2009 Acta Phys. Sin. 58 3198 (inChinese) [佘彦超, 王登龙, 丁建文 2009 58 3198 ]
[17]	Yang Y M, Xu Q M, Zhang Y P 2009 Acta Phys. Sin. 58 290(in Chinese)[杨永明, 许启明, 张彦鹏 2009 58 290]
[18]	Liu C X, Zhang J S, Liu J Y, Jin G 2009 Acta Phys. Sin. 58 5778(in Chinese) [刘春旭, 张继森, 刘俊业, 金光 2009 58 5778]
[19]	Yang B D, Gao J, Liang Q B,Wang J, Zhang T C,Wang J M 2011Chin. Phys. B 20 044202
[20]	Berman P R 2005 Phys. Rev. A 72 035801
[21]	Ant?on M A, Calder?on O G, Carre?no F 2005 Phys. Rev. A 72023809
[22]	Gonzalo I, Ant?on M A, Carre?no F, Calder?on O G 2005 Phys. Rev.A 72 033809
[23]	Niu Y P, Gong S Q 2006 Phys. Rev. A 73 053811
[24]	Cui N, Fan X J, Tian S F, Ma H, Li A Y, Xu Z Z 2006 J. ModernOpt. 53 1165
[25]	Li A Y, Ma H, Tan X, Yang Y L, Tong D M, Fan X J 2007 Opt.Commun. 280 397
[26]	Li A J, Song X L,Wei X G,Wang L , Gao J Y 2008 Phys. Rev. A77 053806
[27]	Yang Y L, Wang L, Liu Z B, Lu H W, Fan X J 2009 Acta Phys.Sin. 58 3161 (in Chinese) [杨艳玲, 王蕾, 刘中波, 卢洪武, 樊锡君 2009 58 3161]
[28]	Osman K I, Hassan S S, Joshi A 2009 Eur. Phys. J. D 54 119
[29]	Braunstein D, Shuker R 2009 J. Phys. B: At. Mol. Opt. Phys. 42125401
[30]	Weatherall J O, Search C P 2010 Phys. Rev. A 81 023806
[31]	Hou B P, WangS J, Yu W L, Sun W L 2004 Phys. Rev. A 69053805

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