https://doi.org/10.1140/epjd/e2016-70038-4
Regular Article
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
510275, P.R.
China
a
e-mail: cesyxy@mail.sysu.edu.cn
Received:
20
January
2016
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
