A semiclassical transition amplitude is derived for electronically inelastic molecular collisions in the presence of an intense electromagnetic field. The calcuiation of this amplitude involves the integration of classical trajectories for nuclei moving on effective potential energy surfaces. These
Semiclassical theory of vibrational collisions in a laser field
โ Scribed by Shih-I Chu
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 403 KB
- Volume
- 70
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
A semtclasslcal theory of multlphoton enhancement of vibrational excrtations by molecular adis~ons is developed-The vlbratlonal-field surfaces (quaslenergies) whxh exhibit avorded crossmgs are determmed na Floquet theory. Transition among the dressed quaslenerges are studled usmg semrclasslcal tune-dependent theory. The effect of oolkional velocity. anharmomclty and bght mtenslty upon vibrational transItion probability IS evaluated for collmear collision of A+-BC(u).
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The relation between the Airy and Bessel uniform approximations for onedimeusionalS matrix integrals in semiclassical collision theory is investigated. It is shown how the Airy uniform approximation can be obtained from the Bessel uniform approximation as a special case. The calculations extend prev
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