Cong, P. and Roberts, G. and Herek, J. L. and Mohktari, A. and Zewail, A. H. (1996) Femtosecond Real-Time Probing of Reactions. 18. Experimental and Theoretical Mapping of Trajectories and Potentials in the NaI Dissociation Reaction. Journal of Physical Chemistry, 100 (19). pp. 7832-7848. ISSN 0022-3654. doi:10.1021/jp9534038. https://resolver.caltech.edu/CaltechAUTHORS:20160825-074651956
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Abstract
We describe a method of tracking wave packet trajectories by probing both the temporal and spatial evolution of a coherent state prepared by a femtosecond laser pulse in real time. Application to the NaI dissociation reaction illustrates this technique, in which the direction of wave packet propagation within the quasi-bound A 0^+ potential is observed and correlated to the physical processes of extension and contraction of the Na−I bond. From the combination of spatial and temporal information observed from experiments, self-consistent potential energy functions for the A 0^+ state and the higher-lying state accessed by the probe laser pulse are constructed. The dynamics and the validity of the potentials so derived are tested via semiclassical and quantum-dynamical simulations of the wave packet motion, and comparisons with potentials obtained from other methods are drawn.
| Item Type: | Article | |||||||||
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| Additional Information: | © 1996 American Chemical Society. Received: November 20, 1995; In Final Form: January 17, 1996. Publication Date (Web): May 9, 1996. This work was supported by the Air Force Office of Scientific Research. | |||||||||
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| Issue or Number: | 19 | |||||||||
| DOI: | 10.1021/jp9534038 | |||||||||
| Record Number: | CaltechAUTHORS:20160825-074651956 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20160825-074651956 | |||||||||
| Official Citation: | Femtosecond Real-Time Probing of Reactions. 18. Experimental and Theoretical Mapping of Trajectories and Potentials in the NaI Dissociation Reaction P. Cong, G. Roberts, J. L. Herek, A. Mohktari, and A. H. Zewail The Journal of Physical Chemistry 1996 100 (19), 7832-7848 DOI: 10.1021/jp9534038 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 69917 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Ruth Sustaita | |||||||||
| Deposited On: | 26 Aug 2016 16:00 | |||||||||
| Last Modified: | 11 Nov 2021 04:21 |
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