两束重合脉冲控制下的振转态布居转移  

Rovibrational population transfer controlled by two overlapping pulses

作　　者：牛英煜[1] 王荣[1] 修俊玲[1] 

机构地区：[1]大连交通大学理学院,大连116028

出　　处：《物理学报》2012年第9期153-158,共6页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:11047177);辽宁省教育厅科学研究项目(批准号:2009A131)资助的课题~~

摘　　要：利用两束频率比为1:3的重合脉冲控制分子振转态布居转移.计算结果表明,初始态|0,0〉到目标态|3,1〉的跃迁概率接近100%.两束脉冲的相位可以控制跃迁概率.当φ=1.68π时,两束脉冲相互增强,跃迁概率增加.当φ=0.64π时,两束脉冲相互抵消,跃迁概率降低.第二束脉冲的场强对布居转移过程具有较大影响.Rovibrational population transfer is controlled by a two-overlapping- pulse scheme in which the frequency ratio of the two pulses is 1：3.The calculated results show that nearly 100%of the population can be transferred from initial state ｜0,0〉to target state ｜3,1〉. The probability of population transfer can be controlled by pulse phase.Whenφ1=1.68π,the two pulses can be increased mutually and the probability of population transfer is also increased.Whenφ_1=0.64π,the two pulses can be offset mutually and the probability of population transfer is reduced.The intensity of the second pulse has a significant effect on the population transfer.

关 键 词：布居转移 HF分子 三光子跃迁 波包 

分 类 号：O431.2[机械工程—光学工程] O561[理学—光学]