论文标题
超出时间分辨的XUV-IR重合光谱法的超高,高更重复率
Ultrastable, high-repetition-rate attosecond beamline for time-resolved XUV-IR coincidence spectroscopy
论文作者
论文摘要
用于研究原子和分子动力学的Attsond Photelectron-Photopopopoposions consproscienty spectroscopicy cons of themic和Molecular Dynamics的实施要求具有高重复速率的驾驶源与实验设置相结合,其特征在于数据习得的稳定性,以良好的稳定性在时间间隔内进行良好的稳定性,范围从几个小时到几天。这一要求对于以低横截面和表征完全差异光电子(S)和光电剂(S)角和能量分布的特征的过程进行研究至关重要。我们证明,工业级激光器的实施,加上对泵探针设置中实现的延迟线的仔细设计,使人们可以达到超高的实验条件,从而导致估计时间延迟仅为12的错误。该结果为调查简单量子系统中的Attsond动力学开辟了新的可能性。
The implementation of attosecond photoelectron-photoion coincidence spectroscopy for the investigation of atomic and molecular dynamics calls for a high-repetition-rate driving source combined with experimental setups characterized by excellent stability for data acquisition over time intervals ranging from a few hours up to a few days. This requirement is crucial for the investigation of processes characterized by low cross sections and for the characterization of fully differential photoelectron(s) and photoion(s) angular and energy distributions. We demonstrate that the implementation of industrial-grade lasers, combined with a careful design of the delay line implemented in the pump-probe setup, allows one to reach ultrastable experimental conditions leading to an error in the estimation of the time delays of only 12 as. This result opens new possibilities for the investigation of attosecond dynamics in simple quantum systems.