arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1401.6328physics.atom-phquant-ph
收藏

利用阿秒拖尾的时间分辨光电发射

Time-resolved photoemission using attosecond streaking

Stefan Nagele, Renate Pazourek, Michael Wais, Georg Wachter, Joachim Burgdörfer

摘要:

本文从理论上研究了用阿秒条纹探测原子的时间分辨光电子。我们回顾了最近的进展,在时域中的光电效应的研究表明,实验上可访问的时间偏移可以分解成不同的贡献,源于无场光电离过程本身和探测场诱导的修正。我们进行精确的量子力学以及经典模拟的阿秒条纹有效的单电子系统,并确定所有相关的阿秒精度的时间延迟的贡献。特别是,我们调查的属性和限制阿秒条纹的过渡从短程电位(光剥离)到长程库仑电位(光电离)。作为一个更复杂系统的一个例子,我们研究了内嵌富勒烯$A$ @ $\text{C}_{60}$的时间分辨光电离,并讨论了如何条纹的时间移位修改由于与探测红外条纹场的$\text{C}_{60}$笼的相互作用。

英文摘要:

We theoretically study time-resolved photoemission in atoms as probed by attosecond streaking. We review recent advances in the study of the photoelectric effect in the time domain and show that the experimentally accessible time shifts can be decomposed into distinct contributions that stem from the field-free photoionization process itself and from probe-field induced corrections. We perform accurate quantum-mechanical as well as classical simulations of attosecond streaking for effective one-electron systems and determine all relevant contributions to the time delay with attosecond precision. In particular, we investigate the properties and limitations of attosecond streaking for the transition from short-ranged potentials (photodetachment) to long-ranged Coulomb potentials (photoionization). As an example for a more complex system, we study time-resolved photoionization for endohedral fullerenes $A$@$\text{C}_{60}$ and discuss how streaking time shifts are modified due to the interaction of the $\text{C}_{60}$ cage with the probing infrared streaking field.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑