Control of nuclear motion in the B 2b2 ionic state of water via an Auger resonant Raman process
Control of nuclear motion in the B 2b2 ionic state of water via an Auger resonant Raman process
复制标题
通过俄歇共振拉曼过程控制水 B 2b2 离子态中的核运动
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
K. Ueda
中科院分区：
文献类型：
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作者：
A. D. Fanis;K. Nobusada;I. Hjelte;N. Saito;M. Kitajima;M. Okamoto;Hiroshi Tanaka;H. Yoshida;A. Hiraya;I. Koyano;M. Piancastelli;K. Ueda
H2O 的共振俄歇光谱以前所未有的分辨率记录，激发能量通过 O 1s→2b2 共振进行调整。衰变至 1b2-1 最终态的电子发射光谱显示了部分解析的振动包络，其整体外观取决于光子能量。与从头计算的比较表明，俄歇终态的二维核运动可以通过对势曲线的不同部分进行采样并改变核激发态下的核运动来控制。
Resonant Auger spectra of H2O are recorded with unprecedented resolution, for excitation energies tuned across the O 1s→2b2 resonance. Electron emission spectra for decay to the 1b2-1 final state show a partially resolved vibrational envelope whose overall appearance is photon energy dependent. Comparison with ab initio calculations indicates that the two-dimensional nuclear motion of the Auger final state can be controlled by sampling different portions of the potential curve and changing the nuclear motion in the core-excited state.