Interaction of intense lasers with solid materials offers an alternative way to achieve high-
order harmonic generation (HHG). Since the underlying mechanisms of the harmonic …

摘要飞秒**激光与物质相互作用后辐射出的高次谐波, 具有单光子能量高, 脉冲持续时间短,
时空相干性好等特性, 可以作为实验室台式化超快真空紫外和软X 射线波段光源 …

Strong-field-driven electric currents in condensed-matter systems are opening new frontiers
in petahertz electronics. In this regime, new challenges are arising as the roles of band …

We investigate the gauge invariance of the semiconductor Bloch equations (SBEs) in solid
high-order harmonic generation (HHG). It is found that the gauge dependence of the SBEs …

An efficient and state‐of‐the‐art real‐time time‐dependent density functional theory (rt‐
TDDFT) method is presented, as implemented in the time‐dependent ab initio package …

For the high-order harmonic generation (HHG) from solids, the dephasing process induced
by many-body interactions has been discussed extensively in the studies of using the …

High-order frequency mixing in graphene using a two-color radiation field consisting of the
fundamental and the second harmonic fields of an ultrashort linearly polarized laser pulse is …

At present, the nearest-neighbor tight-binding model is often used to study the high-order
harmonic generation (HHG) in solids, but its defects are little known. We theoretically …

We investigate the high-order-harmonic generation (HHG) in doped semiconductors. The
HHG is simulated with the single-electron time-dependent Schrödinger equation. The results …

We theoretically investigate the ellipticity dependence of high-order harmonic generation in
graphene driven by the midinfrared laser field. The ellipticity dependence of the harmonic …