Liang Li

TL;DR: In this paper, the authors revisited the mechanism of high-harmonic generation from solids by comparing HHG in laser fields with different ellipticities but a constant maximum amplitude, and they showed that the cutoff of HHG is strongly extended in a circularly polarized field.

TL;DR: In this paper, the authors investigated the selection rules of high harmonic generation (HHG) using three-dimensional time-dependent density functional theory (TDDFT) from the harmonic spectra obtained with various real molecules and different forms of laser fields.

TL;DR: In this article, the authors investigate the high-order harmonic generation in doped semiconductors with the single-electron time-dependent Schrodinger equation and show that the high order harmonics in the second plateau generated from the doped materials are about one to three orders of magnitude higher than those from the undoped materials.

TL;DR: An all-optical method to directly reconstruct the band structure of semiconductors based on the temporal Young's interferometer realized by high harmonic generation with a few-cycle laser pulse, paving the way to study matters under ambient conditions and to track the ultrafast modification of band structures.

TL;DR: In this article, a high-order-harmonic spectroscopy (HHS) method was used to reconstruct the rotational dynamics of molecules from femtosecond to attosecond time scales.