7 papers
Expanded view of electron-hole recollisions in solid-state high-order harmonic generation: Full-Brillouin-zone tunneling and imperfect recollisions
Lun Yue, Mette B. Gaarde
We theoretically investigate electron-hole recollisions in high-harmonic generation (HHG) in band-gap solids irradiated by linearly and elliptically polarized drivers. We find that…
Structure- and laser-gauges for the semiconductor Bloch equations in high-harmonic generation in solids
Lun Yue, Mette B. Gaarde
The semiconductor Bloch equations (SBEs) are routinely used for simulations of strong-field laser-matter interactions in condensed matter. In systems without inversion or time-reve…
Imperfect Recollisions in High-Harmonic Generation in Solids
Lun Yue, Mette Gaarde
We theoretically investigate high-harmonic generation in hexagonal boron nitride with linearly polarized laser pulses. We show that imperfect recollisions between electron-hole pai…
Attosecond time-domain measurement of core-excitonic decay in magnesium oxide
Romain Géneaux, Christopher J. Kaplan, Lun Yue +11
Excitation of ionic solids with extreme ultraviolet pulses creates localized core-excitons, which in some cases couple strongly to the lattice. Here, core-excitonic states of magne…
Goldilocks Zone for Enhanced Ionization in Strong Laser Fields
M. Möller, A. M. Sayler, P. Wustelt +3
Utilizing a benchmark measurement of laser-induced ionization of an H molecular ion beam target at infrared wavelength around 2 m, we show that the characteristic two-peak…
Attosecond transient-absorption spectroscopy of polar molecules
Jørgen Johansen Rørstad, Nikolaj S. W. Ravn, Lun Yue +1
We apply attosecond transient absorption spectroscopy (ATAS) to explore the effects of a nonzero permanent dipole on electron dynamics at the subfemtosecond scale, exemplified in t…