laser辅助亚飞秒脉冲电离金属表面碱金属原子的理论研究
Theoretical study of ionization of an alkali atom adsorbed on a metal surface by laser assisted subfemtosecond pulse
摘要：
首次对亚飞秒脉冲电离金属表面吸附原子的过程进行了数值模拟。当一个弱的亚飞秒脉冲与一个强的红外脉冲以一个可变的延迟相遇时，被认为是拖尾方案。通过数值求解柱坐标系下的非定常薛定谔方程来分析该问题。所得结果与气相中的结果进行了比较。我们表明，表面的影响的DDCS，但这种影响的观察，除了微不足道的偏振移位的初始状态的能量，需要一个相当高的实验分辨率。
英文摘要：
The first numerical simulation of the process of ionization of an atom adsorbed on a metal surface by the subfemtosecond pulse is presented. The streaking scheme is considered, when a weak sub-femtosecond pulse comes together with a strong IR pulse with a variable delay between them. The problem is analyzed with numerical solving the non-stationary Schroedinger equation in the cylindrical coordinate. The results obtained are compared with ones in the gas phase. We show that the surface influences the DDCS, but the observation of this influence, beside the trivial polarization shift of the energy of the initial state, requires a quite high experimental resolution.
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