supported by the National Natural Science Foundation of China (Grant Nos.60678021,10804055);111 Project (Grant No.B07013);the Cultivation Fund of the Key Scientific and Technical Innovation Project,Ministry of Education of China (Grant No.708022);the National Basic Research Program of China (Grant No.2010CB934101);CNKBRSF (Grant No.2006CB921703)
In this review article,we summarized the study of the weak light nonlinear properties associated with group velocity change in the ruby.The ruby could be reduced to a two-level system,in which population oscillations ...