Real-time probing of the electron dynamics of an atom in a strong infrared 
laser field

Deng, Yunpei; Xie, Xinhua

doi:10.1103/PhysRevA.91.043414

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Real-time probing of the electron dynamics of an atom in a strong infrared laser field

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Deng, Yunpei
Physical Chemistry, Fritz Haber Institute, Max Planck Society;
SwissFEL, Paul Scherrer Institut;

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Citation

Deng, Y., & Xie, X. (2015). Real-time probing of the electron dynamics of an atom in a strong infrared laser field. Physical Review A, 91(4): 043414. doi:10.1103/PhysRevA.91.043414.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0026-CEF5-7

Abstract

We present theoretical studies on real-time probing of the electron density evolution of an atom in a strong infrared (IR) laser field with few-cycle near-infrared (NIR) and attosecond extreme-ultraviolet (XUV) pulses. Our results indicate that the electron density near the tunneling barrier is reflected in the additional tunneling ionization yield with a time delayed NIR pulse and the electron density near the nucleus can be probed by the single photoionization yield with a time delayed XUV pulse. It turns out the NIR-probing scheme can be used to study the polarization of the system in an external IR field and the XUV probing can be additionally applied to explore excitation dynamics during and after the IR field interaction.