Atomic partial wave meter by attosecond coincidence metrology.
Atomic partial wave meter by attosecond coincidence metrology.
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DOI：
10.1038/s41467-022-32753-8
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发表时间：
2022-08-29
影响因子：
16.6
通讯作者：
中科院分区：
文献类型：
--
作者：
阿秒计时是理解从气体到凝聚相的超快电子动力学的核心。然而，还不可能确定各个分波的时间，并且引导它们的贡献一直是一个巨大的挑战。在这里，我们开发了一个偏振偏斜的阿秒计时器作为分波仪，以揭示每个分波的作用，从角度分辨的稀有气体原子的光电离相移。通过控制不同子波之间的相对比值，实现了磁亚能级分辨原子相移的测量。我们的实验观测得到了含时R矩阵数值模拟和分析软光子近似分析的很好支持。通过分波分析，确定了阿秒光电子发射动力学中的跃迁速率和相移特性。我们的研究结果提供了重要的见解无处不在的阿秒光学计时器和阿秒光电离动力学的基础。了解光子与原子、分子相互作用后的光电子发射时间具有重要意义。本文利用阿秒钟和电子-离子符合谱研究了分波对原子光电离相移的影响。
Attosecond chronoscopy is central to the understanding of ultrafast electron dynamics in matter from gas to the condensed phase with attosecond temporal resolution. It has, however, not yet been possible to determine the timing of individual partial waves, and steering their contribution has been a substantial challenge. Here, we develop a polarization-skewed attosecond chronoscopy serving as a partial wave meter to reveal the role of each partial wave from the angle-resolved photoionization phase shifts in rare gas atoms. We steer the relative ratio between different partial waves and realize a magnetic-sublevel-resolved atomic phase shift measurement. Our experimental observations are well supported by time-dependent R-matrix numerical simulations and analytical soft-photon approximation analysis. The symmetry-resolved, partial-wave analysis identifies the transition rate and phase shift property in the attosecond photoelectron emission dynamics. Our findings provide critical insights into the ubiquitous attosecond optical timer and the underlying attosecond photoionization dynamics. Understanding the photoelectron emission time after the interaction of photon with atoms and molecules is of fundamental interest. Here the authors examine the role of partial waves to the photoionization phase shift of atoms using an attosecond clock and electron-ion coincidence spectroscopy.
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影响因子：
13.6
作者：
Heck S;Baykusheva D;Han M;Ji JB;Perry C;Gong X;Wörner HJ
通讯作者：
Wörner HJ
影响因子：
8.6
作者：
Itatani, J;Quéré, F;Corkum, PB
通讯作者：
Corkum, PB
影响因子：
64.8
作者：
Cavalieri, A. L.;Mueller, N.;Heinzmann, U.
通讯作者：
Heinzmann, U.
影响因子：
10.4
作者：
Fuchs, Jaco;Douguet, Nicolas;Keller, Ursula
通讯作者：
Keller, Ursula
影响因子：
3.8
作者：
Chini, Michael;Mashiko, Hiroki;Chang, Zenghu
通讯作者：
Chang, Zenghu