As you are aware, Psi-k 2022 is being organized fully in-person in Lausanne during August 22-25, 2022. One of the Symposia (A-10) on "Extreme non-linear optics" (https://www.psik2022.net/program/symposia) will focus on the latest state-of-the-art developments in computational methodologies for extreme non-linear phenomena. This will include (but not restricted to)  High-Harmonic Generation, High, High-Order Sideband Generation, Dynamic Franz–Keldysh effect, Energy transfer between light and matter.