Shobeiry Farshad, Fross Patrick, Srinivas Hemkumar, Pfeifer Thomas, Moshammer Robert, Harth Anne
Max Planck Institute for Nuclear Physics, Saupfercheckweg 1, 69117, Heidelberg, Germany.
Center for Optical Technologies, Aalen University, Anton Huber Straße 1, 73430, Aalen, Germany.
Sci Rep. 2024 Aug 23;14(1):19630. doi: 10.1038/s41598-024-67465-0.
For photo-dissociation of a single hydrogen molecule ( ) with combined XUV and IR laser pulses, we demonstrate optical control of the emission direction of the photoelectron with respect to the outgoing neutral fragment (the H-atom). Depending on the relative delay between the two laser fields, adjustable with sub-femtosecond time resolution, the photoelectron is emitted into the same hemisphere as the H-atom or opposite. This emission asymmetry is a result of entanglement of the two-electron final-state involving the spatially separated bound and emitted electron.
对于单个氢分子（ ）在极紫外（XUV）和红外（IR）激光脉冲联合作用下的光解离过程，我们展示了光电子相对于出射中性碎片（氢原子）发射方向的光学控制。根据两个激光场之间的相对延迟（可通过亚飞秒时间分辨率进行调节），光电子会发射到与氢原子相同的半球或相反的半球。这种发射不对称性是涉及空间分离的束缚电子和发射电子的双电子末态纠缠的结果。
