中国物理B ›› 2010, Vol. 19 ›› Issue (8): 83101-083101.doi: 10.1088/1674-1056/19/8/083101

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Laser pulse design for coherent control of Rydberg lithium atoms

张现周, 伍素玲, 蒋利娟, 马欢强, 贾光瑞   

  1. College of Physics and Information Engineering, Henan Normal University, Xinxiang 453007, China
  • 收稿日期:2009-12-30 修回日期:2010-02-06 出版日期:2010-08-15 发布日期:2010-08-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 10774039) and the Basic Research Program of Education Bureau of Henan Province of China (Grant No. 072300410130).

Laser pulse design for coherent control of Rydberg lithium atoms

Zhang Xian-Zhou(张现周), Wu Su-Ling(伍素玲), Jiang Li-Juan(蒋利娟), Ma Huan-Qiang(马欢强), and Jia Guang-Rui(贾光瑞)   

  1. College of Physics and Information Engineering, Henan Normal University, Xinxiang 453007, China
  • Received:2009-12-30 Revised:2010-02-06 Online:2010-08-15 Published:2010-08-15
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 10774039) and the Basic Research Program of Education Bureau of Henan Province of China (Grant No. 072300410130).

摘要: Using the time-dependent multilevel approach (TDML), this paper studies the dynamics of coherent control of Rydberg lithium atoms and demonstrates that Rydberg lithium atoms can be transferred to states of higher principal quantum number by exposing them to specially designed frequency-chirped laser pulses. The population transfer from n=70 to n=75 states of lithium atoms with efficiency of more than 90% is achieved by means of the sequential adiabatic rapid passages. The results agree well with the experimental ones and show that the coherent control of the population transfer from the lower n to the higher n states can be accomplished by the optimization of the chirping parameters and the intensity of laser field.

Abstract: Using the time-dependent multilevel approach (TDML), this paper studies the dynamics of coherent control of Rydberg lithium atoms and demonstrates that Rydberg lithium atoms can be transferred to states of higher principal quantum number by exposing them to specially designed frequency-chirped laser pulses. The population transfer from n=70 to n=75 states of lithium atoms with efficiency of more than 90% is achieved by means of the sequential adiabatic rapid passages. The results agree well with the experimental ones and show that the coherent control of the population transfer from the lower n to the higher n states can be accomplished by the optimization of the chirping parameters and the intensity of laser field.

Key words: coherent control, population transfer, time-dependent multilevel approach (TDML), super-Gaussian laser pulse

中图分类号:  (Mechanical effects of light on atoms, molecules, and ions)

  • 37.10.Vz
31.15.-p (Calculations and mathematical techniques in atomic and molecular physics) 37.10.De (Atom cooling methods)