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arXiv · 1412.6417

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

Yunpei Deng·Xinhua Xie
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Abstract

We present theoretical studies on real-time probing 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 delayed NIR pulse and the electron density near the nucleus can be probed by the single photoionization yield with a 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.

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Yunpei Deng, Xinhua Xie. 2014-12-19. Real-time probing electron dynamics of an atom in a strong infrared laser field. https://doi.org/10.1103/physreva.91.043414

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