Cross sections for short pulse single and double ionization of helium
Cross sections for short pulse single and double ionization of helium
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DOI：
10.1103/physreva.77.032716
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发表时间：
2007-11
影响因子：
2.9
通讯作者：
A. Palacios;T. Rescigno;C. W. McCurdy;C. W. McCurdy
中科院分区：
文献类型：
--
作者：
A. Palacios;T. Rescigno;C. W. McCurdy;C. W. McCurdy
在以前的出版物中，提出了通过有效地传播无限时间跟随辐射脉冲，从时间相关波包中明确提取单电离和双电离振幅的程序。在这里，我们证明了这些方法描述氦的双光子单电离和单光子双电离的准确性和实用性。特别指出，用这些方法可以很容易地解决与自电离态相对应的狭窄特征。
In a previous publication, procedures were proposed for unambiguously extracting amplitudes for single and double ionization from a time-dependent wavepacket by effectively propagating for an infinite time following a radiation pulse. Here we demonstrate the accuracy and utility of those methods for describing two-photon single and one-photon double ionization of helium. In particular it is shown how narrow features corresponding to autoionizing states are easily resolved with these methods.