High-order harmonic generation of Li+ with combined infrared and extreme ultraviolet fields*

Project supported by the National Natural Science Foundation of China (Grant Nos. 11465016, 11664035, 11764038, and 11765018) and the Foundation of Northwest Normal University, China (Grant No. NWNU-LKQN-17-1).

Wang Li, Wang Guo-Li, Jiao Zhi-Hong, Zhao Song-Feng, Zhou Xiao-Xin
       

(color online) Ionization level of Li+ in the IR and IR + XUV laser fields for the parameters used in Fig. 1.