Coherent control at its most fundamental: carrier-envelope-phase-dependent electron localization in photodissociation of a H2(+) molecular ion beam target.
Coherent control at its most fundamental: carrier-envelope-phase-dependent electron localization in photodissociation of a H2(+) molecular ion beam target.
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最基本的相干控制：H2( ) 分子离子束目标光解中载流子包络相位相关的电子定位
DOI：
10.1103/physrevlett.111.093002
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发表时间：
2013
影响因子：
8.6
通讯作者：
G. G. Paulus
中科院分区：
文献类型：
--
作者：
T. Rathje;A. M. Sayler;S. Zeng;P. Wustelt;H. Figger;B. D. Esry;G. G. Paulus
绝对载波包络相位（CEP）效应的测量和计算<?format ?>本文报道了用4.5fs的钛宝石激光脉冲对最简单分子的光解离。电子相对于两个原子核的定位（在解离过程中）是通过超短激光脉冲的CEP控制的。与以前的CEP依赖的实验与中性分子相比，分子离子的解离之前没有光电离过程，这强烈影响CEP的依赖性。运动学上完整的数据通过时间和位置分辨的符合检测获得。通过与解离片段的检测相关的单次相位测量来确定相位依赖性。实验结果表明定量协议与从头算三维含时薛定谔方程计算，包括核振动和旋转。
Measurements and calculations of the absolute carrier-envelope-phase (CEP) effects in the <?format ?>photodissociation of the simplest molecule,, with a 4.5-fs Ti:sapphire laser pulse at intensities up toare presented. Localization of the electron with respect to the two nuclei (during the dissociation process) is controlled via the CEP of the ultrashort laser pulses. In contrast to previous CEP-dependent experiments with neutral molecules, the dissociation of the molecular ions is not preceded by a photoionization process, which strongly influences the CEP dependence. Kinematically complete data are obtained by time- and position-resolved coincidence detection. The phase dependence is determined by a single-shot phase measurement correlated to the detection of the dissociation fragments. The experimental results show quantitative agreement withab initio3D time-dependent Schrödinger equation calculations that include nuclear vibration and rotation.