Numerical exploration of coherent excitation in three-level ladder systems
Zhang Xian-Zhou(张现周)a), Li Xiao-Hong(李小红)b)c) † , and Yang Xiang-Dong(杨向东)c)
a Department of Physics, Henan Normal University, Xinxiang 453007, China；b College of Science, Henan University of Science and Technology, Luoyang 471003, China; c Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
Abstract The technique of stimulated Raman adiabatic passage (STIRAP) is used to transfer potassium atoms from the 22p state to the 21p Rydberg state through the intermediate state 22s. The results show that complete population transfer is related to pulse duration and overlap, and occurs when the pulse duration and overlap have adequate values. At the same time, population trapping is also formed. Complete population transfer can also occurs when the two-photon resonance condition ($\varDelta$s= $\varDelta$p) is met.
Received: 08 July 2006
Revised: 13 October 2006
Accepted manuscript online:
(Multiphoton ionization and excitation to highly excited states)
Fund: Project supported by the National Natural
Science Foundation of China (Grant No 10574096).
Cite this article:
Zhang Xian-Zhou(张现周), Li Xiao-Hong(李小红), and Yang Xiang-Dong(杨向东) Numerical exploration of coherent excitation in three-level ladder systems 2007 Chinese Physics 16 1947
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