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Femtosecond Real-Time Probing of Reactions. 18. Experimental and Theoretical Mapping of Trajectories and Potentials in the NaI Dissociation Reaction

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. 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
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1021/jp9534038DOIArticle
http://pubs.acs.org/doi/abs/10.1021/jp9534038PublisherArticle
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.
Funders:
Funding AgencyGrant Number
Air Force Office of Scientific Research (AFOSR)UNSPECIFIED
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Arthur Amos Noyes Laboratory of Chemical Physics9160
Issue or Number:19
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:03 Oct 2019 10:26

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