Over the last dozen years, the area of accelerating waves has made considerable advances
not only in terms of fundamentals and experimental demonstrations, but also in connection …

Abstract 2D and 3D solitons and related states, such as quantum droplets, can appear in
optical systems, atomic Bose–Einstein condensates (BECs) and liquid crystals, among other …

The fractional Schrödinger equation (FSE)—a natural extension of the standard Schrödinger
equation—is the basis of fractional quantum mechanics. It can be obtained by replacing the …

Space-time wave packets (STWPs) constitute a broad class of pulsed optical fields that are
rigidly transported in linear media without diffraction or dispersion, and are therefore …

Planar optical elements that can manipulate the multidimensional physical parameters of
light efficiently and compactly are highly sought after in modern optics and nanophotonics. In …

Diffraction-free optical beams propagate freely without change in shape and scale.
Monochromatic beams that avoid diffractive spreading require two-dimensional transverse …

Cylindrical vector beams and vortex beams, two types of typical singular optical beams
characterized by axially symmetric polarization and helical phase front, possess the unique …

Coherent optical excitations in two-dimensional (2D) materials, 2D polaritons, can generate
a plethora of optical phenomena that arise from the extraordinary dispersion relations that …

Spatiotemporal sculpturing of light pulses with sophisticated structures on demand is one
major goal of the everlasting pursuit of ultrafast information transmission and processing as …

Optical wave packets that are localized in space and time, but nevertheless overcome
diffraction and travel rigidly in free space, are a long sought-after field structure with …