When solids are exposed to intense laser fields whose forces are comparable to the binding
forces of valence electrons in crystals, nonlinear optics of solids advances to the …

Key properties of quantum materials stem from dynamic interaction chains that connect
stable electronic quasiparticles through short-lived coherences, which are difficult to control …

Optical bound states in the continuum (BICs) underpin the existence of strongly localized
waves embedded into the radiation spectrum. Here we bring the concept of BICs to the field …

High-harmonic generation in atomic gases has been studied for decades, and has formed
the basis of attosecond science. Observation of high-order harmonics from bulk crystals was …

Optical metasurfaces with subwavelength thickness hold considerable promise for future
advances in fundamental optics and novel optical applications due to their unprecedented …

Tailoring optical nonlinear effects (eg, harmonic generation, sum-frequency mixing, etc.) in
the recently emerging all-dielectric platform is important for both fundamental science and …

High-harmonic generation (HHG) in solids has emerged in recent years as a rapidly
expanding and interdisciplinary field, attracting attention from both the condensed-matter …

The present status and development of strong-field nano-optics, an emerging field of
nonlinear optics, is discussed. A nonperturbative regime of light-matter interactions is …

The recent observation of high-harmonic generation from solids creates a new possibility for
engineering fundamental strong-field processes by patterning the solid target with …

Abstract 2D materials are emerging as ideal candidates for fundamental investigations and
new technologies due to their unique optoelectronic properties. Giant nonlinear …