Two-center interference in high-harmonic generation of <inline-formula> <img src="cpb_26_1_013202_ieqn1.gif"/> </inline-formula> in a combination of a mid-infrared laser field and a terahertz field

Two-center interference in high-harmonic generation of

in a combination of a mid-infrared laser field and a terahertz field

Zhang Jun, Pan Xue-Fei, Xu Tong-Tong, Zhang Hong-Dan, Du Hui, Guo Jing, Liu Xue-Shen^†

(color online) Time-frequency distributions of the HHG corresponding to the black solid curves in Figs. 1(a3) and 1(b3), respectively.