Interaction between the ultrashort pulse and two-level medium beyond the rotating wave approximation
State Key Laboratory of Optoelectronic Materials and
Technologies, School of Physics, Sun Yat-Sen University, Guangzhou
Received in final form: 30 March 2016
Published online: 6 September 2016
Based on the semiclassical theory of light-matter interactions, the optical Bloch equations describing the interaction between light and two-level medium without the rotating wave approximation are established. By solving this equation set, the rule of the interaction between the ultrashort pulse and two-level medium is investigated. We analyze its physical properties and clarify the applicable condition of the rotating wave approximation in a quantitative way. These results reveal the physical mechanism of the interaction between the ultrashort pulse and two-level medium.
Key words: Ultraintense and Ultra-short Laser Fields
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2016