3 papers
physics.atom-ph2025
Attosecond transient absorption spectroscopy in monolayer hexagonal boron nitride
Jiayu Yan, Chenkai Zhu, Rongxiang Zhang +2
We simulate the attosecond transient absorption spectroscopy (ATAS) of monolayer hexagonal boron nitride (hBN) using the time-dependent density functional theory and two-band densi…
cond-mat.mes-hall2025
Effect of Berry connection on attosecond transient absorption spectroscopy in gapped graphene
Jiayu Yan, Hongxuan Er, Wei Dang +4
We investigate the attosecond transient absorption spectroscopy (ATAS) in gapped graphene by numerically solving the four-band density matrix equations. Our results reveal that, in…
physics.atom-ph2025
Isolated elliptically-polarized attosecond pulse generation in gapped graphene driven by linearly polarized laser fields
Xinru Song, Xiaoyu Bu, Xiaohui Zhao +3
We theoretically investigate high-order harmonic generation (HHG) and its ellipticity in gapped graphene, driven by a femtosecond short-pulse laser at various orientation angles, e…