Picosecond photodynamics of intense pulse interactions with molecular populations
| Autor: | G. E. Busch, G. L. Olson |
|---|---|
| Rok vydání: | 1977 |
| Předmět: |
Materials science
business.industry Physics::Optics General Physics and Astronomy Saturable absorption Rate equation Laser Molecular physics law.invention Pulse (physics) law Picosecond Optoelectronics Stimulated emission Physics::Chemical Physics Physical and Theoretical Chemistry Absorption (electromagnetic radiation) business Ultrashort pulse |
| Zdroj: | The Journal of Chemical Physics. 66:1183-1187 |
| ISSN: | 1089-7690 0021-9606 |
| DOI: | 10.1063/1.434054 |
| Popis: | The ultrafast modification of molecular electronic state populations by picosecond duration laser pulses is discussed. The photodynamic interactions operative during the dual pulse irradiation of a saturable absorbing dye are treated by a rate equation approach which allows the temporal changes in the gain and attenuation conditions of the absorber to be predicted. The treatment relies on a knowledge of the molecular absorption and stimulated emission profiles and the existence of homogeneously broadened electronic states of the molecule. The approach is applied to a description of the passive mode‐locking capability of certain saturable absorbing dyes at wavelengths substantially different from their absorption maxima. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|