Multilevel perspective on high-order harmonic generation in solids
Multilevel perspective on high-order harmonic generation in solids
We investigate high-order harmonic generation in a solid, modeled as a multi-level system dressed by a strong infrared laser field. We show that the cutoff energies and the relative strengths of the multiple plateaus that emerge in the harmonic spectrum can be understood both qualitatively and quantitatively by considering a …