Controlling the contributions to high-order harmonic generation from different nuclei of N<sub>2</sub> with an orthogonally polarized two-color laser field

Controlling the contributions to high-order harmonic generation from different nuclei of N₂ with an orthogonally polarized two-color laser field

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

Time–frequency distributions of the high-harmonic spectrum along the y direction when the electron recombines with the nucleus C₁ (a)–(d) and the nucleus C₂ (e)–(h) of N₂ molecule in the OPTC laser field with different relative phases φ = 0, φ = 0.3π, φ = 0.4π, and φ = 0.5π, respectively.