Numerical exploration of coherent excitation in three-level ladder systems  

作　　者：张现周 李小红 杨向东 

机构地区：[1]Department of Physics, Henan Normal University, Xinxiang 453007, China [2]College of Science, Henan University of Science and Technology, Luoyang 471003, China [3]Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China

出　　处：《Chinese Physics B》2007年第7期1947-1951,共5页中国物理B（英文版）

基　　金：Project sapported by the National Natural Science Foundation of China （Grant No 10574096）.

摘　　要：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 （△s = △p） is met.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 （△s = △p） is met.

关 键 词：STIRAP coherent population transfer pulse duration OVERLAP 

分 类 号：O41[理学—理论物理]