High-harmonic spectroscopy, an ultrafast all-optical technique initially conceptualized in
atomic and molecular systems, has now emerged as a powerful platform for studying the …

High harmonic generation (HHG) from gas-phase atoms (or molecules) has opened up a
new frontier in ultrafast optics, where attosecond time resolution and angstrom spatial …

High harmonic generation (HHG) has developed in recent years as a promising tool for
ultrafast materials spectroscopy. At the forefront of these advancements, several works …

Photoinduced phase transitions in correlated materials promise diverse applications from
ultrafast switches to optoelectronics. Resolving those transitions and possible metastable …

By numerically solving the semiconductor Bloch equation, we study the high-order harmonic
emission spectrum of a MgO crystal under the interaction of a linearly polarized laser pulse …

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 …

We develop and demonstrate a fully real-space perspective on high harmonic generation
(HHG) in crystals. Due to the Wannier-Stark localization induced on subcycle timescales in …

Symmetries are ubiquitous in condensed matter physics, playing an important role in the
appearance of different phases of matter. Nonlinear light matter interactions serve as a …

We propose a novel approach based on the subcycle injection of carriers to extend the high-
energy cutoff in solid-state high harmonics. The mechanism is first examined by employing …

Field-induced tunneling is one of the most fundamental quantum phenomena. In atoms this
process has been successfully explored by attosecond interferometry based on high …