Coherent control of nondegenerate two-photon absorption by femtosecond laser pulses
Coherent control of nondegenerate two-photon absorption by femtosecond laser pulses
复制标题
DOI：
10.1080/09500340.2013.821534
复制
发表时间：
2014-06
影响因子：
1.3
通讯作者：
Ji-Cai Liu;Ye-Qi Zhang;Lei Chen
中科院分区：
文献类型：
--
作者：
Ji-Cai Liu;Ye-Qi Zhang;Lei Chen
研究了双色飞秒激光脉冲作用下级联三能级系统中非简并双光子吸收的动力学行为。结果表明，光场频率与中间态的最佳单光子失谐量可以用来相干控制最高态和基态之间的粒子数反转。传播效应使情况更加复杂。我们的模拟结果表明，在单光子失谐的帮助下，双色脉冲的光孤子行为的可能性。
We investigate the dynamics of nondegenerate two-photon absorption in a cascade three-level system induced by two-color femtosecond laser pulses. It is demonstrated that optimal one-photon detunings of the field frequencies from the intermediate state can be used to control coherently the population inversion between the uppermost and the ground states. The propagation effects make the situation much more complicated. Our simulation shows the possibility of an optical soliton behavior of the two-color pulse with the help of the one-photon detuning.