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- Title
Probing vibrational wave packets in molecular excited states.
- Authors
González-Castrillo, Alberto; Pérez-Torres, Jhon; Palacios, Alicia; Martín, Fernando
- Abstract
time-dependent theoretical method is used to describe a UV pump-UV probe strategy to trace, at a femtosecond time scale, the motion of vibrational wave packets created in excited states of the hydrogen molecule by measuring single ionization probabilities. We use a spectral method to solve the time-dependent Schrödinger equation in full dimensionality, including correlation and all electronic and vibrational degrees of freedom. A pump pulse initially creates a vibrational wave packet in the intermediate electronic excited states of $$\hbox{H}_2$$. The frequency of the probe is chosen to ionize the target leaving the ion in a bound vibrational state. By varying the time delay between pulses, non-dissociative single ionization is enhanced or suppressed. Energy differential ionization probabilities are reported and compared with a model based on the Franck-Condon approximation.
- Subjects
WAVE packets; ULTRAVIOLET radiation; MOLECULAR probes; MULTIPHOTON ionization; EXCITED state chemistry; FEMTOSECOND lasers; SCHRODINGER equation; DISSOCIATION (Chemistry)
- Publication
Theoretical Chemistry Accounts: Theory, Computation, & Modeling, 2011, Vol 128, Issue 4-6, p735
- ISSN
1432-881X
- Publication type
Article
- DOI
10.1007/s00214-010-0853-0