首页> 美国政府科技报告 >Shape Resonance and Non-Franck-Condon Behavior in the Photoelectron Spectra of O2 Produced by (2+1) Multiphoton Ionization Via 3S Sigma Rydberg States
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Shape Resonance and Non-Franck-Condon Behavior in the Photoelectron Spectra of O2 Produced by (2+1) Multiphoton Ionization Via 3S Sigma Rydberg States

机译:通过3s sigma Rydberg态(2 + 1)多光子电离产生O2的光电子能谱中的形状共振和非Franck-Condon行为

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摘要

The (2+1) MPI photoelectron spectra of the v=0-3 vibrational levels of both the singlet pi and triplet pi states have been measured. A dominant feature is the strong deviation from v conservation for v > 0. The spectra are discussed in terms of non-Franck-Condon effects and shape resonances. Other mechanisms are also briefly discussed which could preferentially enhance processes for which the change in the vibrational quantum number is greater than zero. Keywords: Multiphoton ionization; Rydberg states; Molecular oxygen; Shape resonances; Photoelectron spectroscopy; Reprints. (jhd)

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