High-order harmonic generation in semiconductors driven at near- and mid-infrared wavelengths

Blueshifts of high-order harmonic generation in crystalline silicon subjected to intense femtosecond near-infrared laser pulse

“…However, in order to reproduce the clean frequency comb observed in the ZnO experiment, one has to phenomenologically introduce an ultra-fast polarization de-phasing process. But a physical mechanism associated with such ultrashort de-phasing time-scale, which is fraction of an optical cycle, has not been clearly identified [11][12][13].…”

Solid high-order harmonic generation: Review of the semiconductor Bloch equations

“…Equation, TDSE) [34,63,64] 、 半 导 体 布 洛 赫 方 程(Semiconductor Bloch Equations, SBEs) [57,65,66] 和 含 时 密 度 泛 函 理 论(Time-Dependent Density Functional Theory, TDDFT) [37,67,68] 等.…”

Benchmarking Functionals for Strong-Field Light-Matter Interactions in Adiabatic Time-Dependent Density Functional Theory

“…This issue is further complicated by the fact that comparisons between theory and experiment are in any case not quantitative due to many factors that affect HHG but are not described in theory, such as macroscopic physics (e.g., phase matching, reabsorption, focal averaging, etc. ), vibrational modes, − temperature, , and sometimes even simple experimental uncertainty of the laser pulse parameters. Up to this point, TDDFT was only validated against wave function-based methods in a handful of simple oriented molecules. − However, such calculations are not necessarily even a proper benchmark due to approximations employed in the wave function methodology.…”