双色场对原子电离的相干控制:ω-2ω与ω-3ω之间的比较  

Coherent Control of Ionization in Two-color Laser Fields: a Comparison between ω-2ω and ω-3ω combinations

作　　者：吴海涛[1] 龚尚庆[1] 冯勋立[1] 徐至展[1] 

机构地区：[1]中国科学院上海光机所强光光学开放实验室,上海201800

出　　处：《中国激光》2001年第4期330-332,共3页Chinese Journal of Lasers

摘　　要：通过数值方法求解一维模型原子的含时薛定谔方程 ,研究了双色场对电离的相干控制 ,分别讨论了基频光与其二次或三次谐波的耦合 ,通过对这两种组合的比较发现由于相干叠加效应的不同 ,其电离率也有很大的差异。By using the numerical solution of time-dependent Schrodinger equation for a hydrogen atom, the coherent control of ionization in two-color laser fields, with considering a fundamental laser field mixed with its second harmonic field or its third harmonic field is investigated. Comparing the two scenarios, it is found that the ionization rates of the system are quite different due to the different superposition effects of the two kinds of combinations.

关 键 词：双色场 电离 相干叠加效应 光场 原子 

分 类 号：O431.2[机械工程—光学工程]