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) Same as Fig. 1(a), but for the XUV central wavelength of the 280th harmonic of IR. The peak intensity of IR and XUV pulses are 2.5 × 1015 W/cm2 and 2.5 × 1010 W/cm2, respectively.