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 …

The Hall response can be dramatically different from its quantized value in materials with
broken inversion symmetry. This stems from the leading Hall contribution beyond the linear …

Time-periodic light field can dress the electronic states and lead to light-induced emergent
properties in quantum materials. While below-gap pumping is regarded favorable for …

Abstract Two-dimensional (2D) Dirac materials, eg, graphene and transition metal
dichalcogenides (TMDs), are one-atom-thick monolayers whose electronic behaviors are …

Excitons are neutral excitations that are composed of electrons and holes bound together by
their attractive Coulomb interaction. The electron and the hole forming the exciton also …

Excitons play a key role in the linear optical response of two-dimensional (2D) materials.
However, their role in the nonlinear response to intense, nonresonant, low-frequency light is …

Coherent interaction between light and matter generates photon-dressed replicas of the
original electronic levels (that is, Floquet states). This opens up a so-called field of Floquet …

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 …

Evidence for the treatment of patients with mild-to-moderate chronic obstructive pulmonary
disease (COPD) is limited. The efficacy of N-acetylcysteine (an antioxidant and mucolytic …

Understanding dephasing mechanisms of strong-field-driven excitons in condensed matter
is essential for their applications in quantum-state manipulation and ultrafast optical …