Photofragmentation study of core-excited NO
Photofragmentation study of core-excited NO
复制标题
核心激发NO的光裂解研究
DOI：
10.1088/0953-4075/37/18/003
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
D. Lindle
中科院分区：
文献类型：
--
作者：
S. Yu;W. Stolte;R. Guillemin;G. Öhrwall;I. Tran;M. Piancastelli;R. Feng;D. Lindle
在氮的1s阈值附近，测量了光激发后NO的阴离子和阳离子碎片的产生。阴离子片段O-−的部分离子产额与部分阳离子产额相结合，可以清楚地区分形状共振和双激发态。在由3个中间态2→π、2Δ和2Σ−+按光子能量递增顺序组成的N 1SΣ*共振中，NO++、O+和O++碎片的强度比与总离子产额有很大的不同。从对称性的角度对这一现象进行了解释。
The production of anionic and cationic fragments of NO has been measured after photoexcitation in the vicinity of the nitrogen 1s threshold. The partial ion yield for the anionic fragment O−, in conjunction with the partial cation yields, can clearly distinguish the shape resonances from doubly excited states. On the N 1s → π* resonances, which are composed of the three intermediate states 2Δ, 2Σ− and 2Σ+ in the order of increasing photon energy, the intensity ratios for the NO++, O+ and O++ fragments are very different from the total ion yield. An explanation for this behaviour in terms of symmetry is proposed.