| Autor: |
Masahiro Kawasaki, Richard Bersohn |
| Jazyk: |
angličtina |
| Rok vydání: |
2002 |
| Předmět: |
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| Zdroj: |
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN. 75(9):1885-1900 |
| ISSN: |
0009-2673 |
| Popis: |
Our knowledge of the process of photodissociation is built on a foundation of molecular spectroscopy developed since the 1920’s. However, modern photodissociation dynamics has been mainly created by the introduction of laser light sources around 1970. This review of molecular photodissociation emphasizes findings based on techniques developed in the past ten–fifteen years. These include measurement of the energy dependence of the branching ratios of the yields of different photodissociation channels and the distribution of velocity and internal states of the fragments. The time scale of the separation of the fragments is shown to vary from the microsecond to the femtosecond regime depending on whether the dissociation is indirect or direct. Multiphoton dissociation can be incoherent or coherent. In the latter case, if two different optical paths can accomplish dissociation, changing the relative phase of the transition matrix elements of the two paths can control the branching ratio of different channels.... |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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