Ultrafast Science / 2021 / Article / Fig 3

Research Article

Neighboring Atom Collisions in Solid-State High Harmonic Generation

Figure 3

Mapping between the band structure and the collision dynamics. (a, b) 2D conduction and valence band structures of MgO. The black dots indicate the places where . The light yellow solid lines show where only , and grey solid lines show only . (c–h) The time-dependent position of electron (black) and hole (red) trajectories with an initial ionization time before the field crest for (c), (d), and (e). The deep pink, green, and yellow dashed arrow lines in (a) and (b) show the corresponding trajectories in momentum space for , and , respectively.