光活化库仑配合物的动力学
Dynamics of photo-activated Coulomb complexes
摘要：
频率高于由自由电子激光提供的典型原子或分子电离势的强光将许多光子耦合到扩展的目标（例如簇和生物分子）中。这意味着，与传统的多光子电离相反，多个单光子吸收。因此，如果目标电荷变得足够大，许多电子从它们的束缚态被移除并且被释放或被捕获。我们开发了一个简单的模型，这种光活化研究电子迁移和相互作用。它满足比例关系，这有助于将完全不同的场景联系起来。了解这种类型的多电子动力学在很短的时间尺度上是至关重要的，以评估由这种类型的辐射造成的辐射损伤，并铺平了道路的单分子的相干衍射成像。
英文摘要：
Intense light with frequencies above typical atomic or molecular ionization potentials as provided by free-electron lasers couples many photons into extended targets such as clusters and biomolecules. This implies, in contrast to traditional multi-photon ionization, multiple single-photon absorption. Thereby, many electrons are removed from their bound states and either released or trapped if the target charge has become sufficiently large. We develop a simple model for this photo activation to study electron migration and interaction. It satisfies scaling relations which help to relate quite different scenarios. To understand this type of multi-electron dynamics on very short time scales is vital for assessing the radiation damage inflicted by that type of radiation and to pave the way for coherent diffraction imaging of single molecules.
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