Laserinduced electron localization in a triatomic molecular ion
Laserinduced electron localization in a triatomic molecular ion
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三原子分子离子中的激光诱导电子定位
DOI：
10.1103/physreva.88.041402
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
E.Lotestedt and K.Midorikawa
中科院分区：
文献类型：
--
作者：
北山香澄;朝倉哲郎;馬場淳徳;金蔵拓郎;和田知明;幡多徳彦;舟久保昭夫;高木義秀;小川陽子;E.Lotestedt and K.Midorikawa
我们从理论上证明，通过采用强少周期、圆偏振激光脉冲，激光驱动 H 中电子波函数的二维局域化可以通过改变载流子包络相位 (CEP) 来控制。在反应中，可以通过调整 CEP 的值来选择电子最终与哪一个质子结合。引入复杂的不对称测量来量化激光场引起的不对称程度。与之前仅考虑双原子分子的电子定位研究不同，我们的结果将分子内电子运动的 CEP 控制扩展到三原子系统。这为多原子分子中电子动力学的强场空间和时间控制迈出了一步。
We demonstrate theoretically that by employing an intense few-cycle, circularly polarized laser pulse, two-dimensional localization of the electronic wave function in laser-driven Hcan be controlled by varying the carrier-envelope phase (CEP). In the reaction, it is possible to select which one of the protons the electron finally binds to by tuning the value of the CEP. A complex asymmetry measure is introduced to quantify the degree of asymmetry induced by the laser field. In contrast to previous investigations of electron localization where only diatomic molecules were considered, our results extend CEP control of intramolecular electron motion to triatomic systems. This provides a step toward strong-field spatial and temporal control of electron dynamics in polyatomic molecules.