Flat optics has emerged as a key player in the area of structured light and its applications,
owing to its subwavelength resolution, ease of integration, and compact footprint. Although …

Controlling the various degrees‐of‐freedom (DoFs) of structured light at both quantum and
classical levels is of paramount importance in optics. It is a conventional paradigm to treat …

Structured light refers to the arbitrarily tailoring of optical fields in all their degrees of freedom
(DoFs), from spatial to temporal. Although orbital angular momentum (OAM) is perhaps the …

Vector vortex beams have attracted considerable research attention owing to their unique
optical properties, and have been explored in vortex filtering, photon entanglement, and the …

Spatiotemporal sculpturing of light pulse with ultimately sophisticated structures represents a
major goal of the everlasting pursue of ultra-fast information transmission and processing as …

Structured waves are ubiquitous for all areas of wave physics, both classical and quantum,
where the wavefields are inhomogeneous and cannot be approximated by a single plane …

We introduce a new paradigm for generating high-purity vortex beams with metasurfaces. By
applying optical neural networks to a system of cascaded phase-only metasurfaces, we …

Perfect vector vortex beams (PVVBs) have attracted considerable interest due to their
peculiar optical features. PVVBs are typically generated through the superposition of perfect …

Recent rapid progress in metasurfaces is underpinned by the physics of local and nonlocal
resonances and the modes coupling among them, leading to tremendous applications such …

Structured light has become topical of late, where controlling light in all its degrees of
freedom has offered novel states of light long predicted, enhanced functionality in …