Classical model for laser-induced nonadiabatic collision processes

Journal Article · Tue Jul 01 00:00:00 EDT 1980 · J. Chem. Phys.; (United States)

DOI:https://doi.org/10.1063/1.439923· OSTI ID:5364837

Orel, A E; Miller, W H

By synthesizing earlier work of Orel and Miller and of Meyer, McCurdy, and Miller, a model for describing laser-induced electronically nonadiabatic collision processes is constructed which treats all degrees of freedom: heavy particle (i.e., translation, rotation, and vibration) electronic, and photon: by classical mechanics. This then makes it relatively easy to carry out calculations to simulate such processes within a dynamically consistent framework. Application is made to the test case H+LiF..-->..Li+HF reaction considered by Light and Altenberger-Siczek. The most interesting feature revealed by these classical calculations is maxima in the reaction probability as a function of initial translational energy at energies below the laser-free threshold. It is seen that this structure can be understood as a Franck--Condon-like effect.

• Research Organization: Department of Chemistry, and Materials and Molecular Research Division, Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720
• OSTI ID: 5364837
• Journal Information: J. Chem. Phys.; (United States), Vol. 73:1
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOM-MOLECULE COLLISIONS
ENERGY-LEVEL TRANSITIONS
HYDROFLUORIC ACID
HYDROGEN
LITHIUM
LITHIUM FLUORIDES
CLASSICAL MECHANICS
LASER RADIATION
ALKALI METAL COMPOUNDS
ALKALI METALS
ATOM COLLISIONS
COLLISIONS
CRYOGENIC FLUIDS
ELECTROMAGNETIC RADIATION
ELEMENTS
FLUIDS
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
LITHIUM COMPOUNDS
LITHIUM HALIDES
MECHANICS
METALS
MOLECULE COLLISIONS
NONMETALS
RADIATIONS
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena