Coherent interaction of an ultrashort zero-area laser pulse with a Morse oscillator
- 1 June 1990
- journal article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 41 (11), 6480-6484
- https://doi.org/10.1103/physreva.41.6480
Abstract
Dissociation probabilities, energy absorption, and ground-state populations are calculated numerically for interaction of a Morse oscillator with a resonant ultrashort ( sec) intense laser pulse as a function of intensity and pulse area in order to investigate the sensitivity of coherence phenomena to delocalization and chaos in molecule-radiation field systems. It is concluded that a zero-area pulse can reduce considerably energy absorbed by a molecule as well as dissociation probabilities for intensities below and near the chaotic region. It is found that the two-level model (describing the interaction of light resonant with the ground to first excited level transition) works well up to the intensity W/, above which transitions to higher levels must be considered.
Keywords
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