Laser photosynthesis of previtamin D: new effects of high-intensity picosecond irradiation
| Autor: | I P Terenetskaya, Yu. A. Repeev |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
business.industry
Previtamin D3 Kinetics Statistical and Nonlinear Physics Photosynthesis Laser Photochemistry Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention chemistry.chemical_compound Optics chemistry law Picosecond Irradiation Electrical and Electronic Engineering business Absorption (electromagnetic radiation) Isomerization |
| Zdroj: | Quantum Electronics. 26:746-749 |
| ISSN: | 1468-4799 1063-7818 |
| DOI: | 10.1070/qe1996v026n08abeh000769 |
| Popis: | An investigation was made of the influence of the intensity of picosecond (?p ? 23 ps) laser pulses on the kinetics of the photosynthesis of previtamin D3. An increase of the intensity from 1012 to 1014 W m-2 resulted in significant changes in the photosynthesis kinetics: the photoreaction rate fell and so did the efficiency of the cis?trans isomerisation of previtamin D. An analysis showed that two-step absorption made only a small contribution to these effects and that they were mainly associated with the excitation of nonequilibrium conformers of the previtamin molecule. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|