Shape‐resonance‐induced non‐Franck–Condon effects in (2+1) resonance enhanced multiphoton ionization of the C 3Πg state of O2
作者： J. A. Stephens , M. Braunstein , V. McKoy
DOI: 10.1063/1.454869
关键词: Diatomic molecule 、 Chemistry 、 Resonance-enhanced multiphoton ionization 、 Franck–Condon principle 、 Shape resonance 、 Branching fraction 、 Spectral line 、 Atomic physics 、 Photoionization 、 Molecular physics 、 Electronic correlation
摘要: We show that strong non-Franck–Condon effects observed in (2+1) resonance enhanced multiphoton ionization of the C 3Pig state O2 are due to ksigmau shape previously single-photon studies diatomic molecules. Calculated vibrational branching ratios for v=2,3 levels 3Πg reasonable agreement with experiment. Certain discrepancies remain comparing theoretical results measured spectra, and possible electron-correlation which underly this discussed.
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