Liu Kunlong, Hong Weiyi, Lu Peixiang
Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China.
Opt Express. 2011 Oct 10;19(21):20279-87. doi: 10.1364/OE.19.020279.
The electron localization in the dissociation of the asymmetric charged molecular ion HeH²⁺ exposed to an intense few-cycle laser pulse is studied by solving numerically the 3D time-dependent Schrödinger equation. By varying the carrier-envelope phase (CEP) and the intensity of the pulse, the upward shift of the localization probability and the suppression of the dissociation channel He²⁺+H are observed. Our analysis shows that the phenomenon is attributed to the asymmetric structure of the molecule as well as the recollision-assistant field-induced ionization of the electron wave packets localized on H⁺ in the trailing of the pulse.
通过数值求解三维含时薛定谔方程，研究了暴露于强少周期激光脉冲下的不对称带电分子离子HeH²⁺解离过程中的电子局域化。通过改变载波包络相位（CEP）和脉冲强度，观察到局域化概率的上移以及解离通道He²⁺+H的抑制。我们的分析表明，该现象归因于分子的不对称结构以及脉冲尾部局域在H⁺上的电子波包的再碰撞辅助场致电离。
