In recent years, the stacking and twisting of atom-thin structures with matching crystal
symmetry has provided a unique way to create new superlattice structures in which new …

Stacking and twisting atom-thin sheets create superlattice structures with unique emergent
properties, while tailored light fields can manipulate coherent electron transport on ultrafast …

High-harmonic generation—the emission of high-frequency radiation by the ionization and
subsequent recombination of an atomic electron driven by a strong laser field—is widely …

When an atom is ionized by a strong laser pulse, the field can drive the released electron
back to the parent ion and trigger the emission of a high-order harmonic photon with a …

We experimentally study the enhancement of high-order harmonic generation (HHG) driven
by synthesized ω− 3ω laser fields, where we control whether the ionization rate or the …

We perform an experimental two-color high-order harmonic generation study in argon with
the fundamental of an ytterbium ultrashort pulse laser and its second harmonic. The intensity …

Accurate estimation of the duration of soft-x-ray pulses from high-harmonic generation
(HHG) remains challenging given their higher photon energies and broad spectral …

When a two-color Laguerre-Gaussian laser beam propagates through an indium tin oxide
(ITO) material, the spatial distributions of odd-and even-order vortex harmonics carrying …

High harmonic generation (HHG) is strongly modified near plasmonic nanostructures due to
confinement and inhomogeneity of the electromagnetic field. Previous studies have …

We present a novel, interferometric, two-color, high-order harmonic generation setup, based
on a turn-key Ytterbium-doped femtosecond laser source and its second harmonic. Each …