论文标题
一氧化碳与自由电子激光脉冲相互作用
Carbon monoxide interacting with free-electron-laser pulses
论文作者
论文摘要
我们研究异核双原子分子一氧化碳与自由电子激光（FEL）脉冲的相互作用。我们计算离子产量的离子产量和中间状态。我们使用速率方程式来计算所有相关的分子和原子光电离截面和螺旋螺旋速率。我们发现碳和氧离子产量的电荷分布有所不同。通过改变光子能量，我们演示了如何控制主要由碳或氧气构建的高电荷状态。此外，我们确定了所得的离子产量和途径的差异，这些产量在同核分子，分子氮和异核分子，一氧化碳，与FEL脉冲相互作用之间的差异。这两个分子具有相似的电子结构。我们还确定了每个离子产量的比例，该离子产量访问了两个站点双核孔状态和量身定制脉冲参数，以最大程度地提高该比例。
We study the interaction of a heteronuclear diatomic molecule, carbon monoxide, with a free-electron laser (FEL) pulse. We compute the ion yields and the intermediate states by which the ion yields are populated. We do so using rate equations, computing all relevant molecular and atomic photoionisation cross-sections and Auger rates. We find that the charge distribution of the carbon and oxygen ion yields differ. By varying the photon energy, we demonstrate how to control higher-charged states being populated mostly by carbon or oxygen. Moreover, we identify the differences in the resulting ion yields and pathways populating these yields between a homonuclear molecule, molecular nitrogen, and a heteronuclear molecule, carbon monoxide, interacting with an FEL pulse. These two molecules have similar electronic structure. We also identify the proportion of each ion yield which accesses a two-site double-core-hole state and tailor pulse parameters to maximise this proportion.
