Zhou Yueming, Liao Qing, Zhang Qingbin, Hong Weiyi, Lu Peixiang
Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, P. R. China.
Opt Express. 2010 Jan 18;18(2):632-8. doi: 10.1364/OE.18.000632.
Using the classical three-dimensional ensembles, we have demonstrated the controlling of dynamics in nonsequential double ionization (NSDI) of helium by two-color few-cycle pulses. By changing the relative phase of the two pulses, recollisions leading to NSDI can be restricted in a time interval of several hundreds attosecond nearly before the field extremum and as a result, the correlated electron momentum distribution exhibits a so-far unobserved narrow arc-like structure. This structure reveals a novel energy correlation between the two electrons from NSDI by two-color few-cycle pulses.
利用经典的三维系综，我们展示了通过双色少周期脉冲对氦原子非序列双电离（NSDI）动力学的控制。通过改变两个脉冲的相对相位，导致NSDI的再碰撞可以在几乎在场极值之前的几百阿秒的时间间隔内受到限制，结果，相关电子动量分布呈现出一种迄今为止未被观察到的窄弧状结构。这种结构揭示了双色少周期脉冲导致的NSDI中两个电子之间一种新的能量关联。
