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 distribution of the harmonics along (a) the x and (b) y directions; (c) dependence of energy on the ionization (solid blue triangles) and emission times (solid green circles) in the OPTC laser field with a relative phase φ = 0; (d) the corresponding electron trajectories with finite initial transverse velocities.