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physics.optics2022
Solid-like high harmonic generation from rotationally periodic systems
Yigeng Peng, Tong Wu, Guanglu Yuan +3
High harmonic generation (HHG) from crystals in strong laser fields has been understood by the band theory of solid, which is based on the periodic boundary condition (PBC) of tran…
physics.optics2020
Electron-Backscattering-Assisted High Harmonic Generation from Bilayer Nanostructures
Chao Yu, Shicheng Jiang, Tong Wu +4
In the framework of time-dependent density functional theory, we obtain high-order harmonics of photon energies up to 10 Up from bilayer crystals with an interlayer spacing d = 70…
physics.optics2019
How to obtain complex transition dipole moments satisfying crystal symmetry and periodicity from ab-initio calculations
Shicheng Jiang, Chao Yu, Jigen Chen +3
Transition dipole moments (TDM) between energy bands of solids deserve special attention nowadays as intense lasers can easily drive non-adiabatic transitions of excited electron w…