关键词: "ladder"式跃迁/
波包/
相对相位角/
基频脉冲
English Abstract
The extended “ladder” transition controlled by two harmonic pulses
Niu Ying-Yu,Wang Rong,
Qiu Ming-Hui,
Xiu Jun-Ling
1.School of Science, Dalian Jiaotong University, Dalian 116028, China
Fund Project:Project supported by the National Natural Science Foundation of China (Grant No. 11347012).Received Date:06 August 2016
Accepted Date:08 September 2016
Published Online:05 December 2016
Abstract:The extended “ladder” transition controlled by two harmonic pulses is investigated by using a time-dependent quantum wave packet method. The molecular population transfers from the state|0, 0> angle to the states|5, 0> angle and|5, 2> angle induced by the fundamental and second-harmonic pulses, and to the states|5, 3> angle and |6, 2> angle induced by the fundamental and third-harmonic pulses. The calculated results show that the two harmonic pulses can induce a nearly 100% of population to transfer to the target state. The relative phase of two pulses can affect the population distribution. The variation of population has a period of π for the fundamental and second-harmonic pulses, and a period of 2π for the fundamental and third-harmonic pulses.
Keywords: "ladder" transition/
wave packet/
relative phase/
fundamental pulse
