Axicon is a versatile optical element for forming a zero-order Bessel beam, including high-
power laser radiation schemes. Nevertheless, it has drawbacks such as the produced …

Vector vortex beams are structured states of light that are nonseparable in their polarisation
and spatial mode, they are eigenmodes of free-space and many fiber systems, and have the …

We propose theoretically and verify experimentally a method of combining a q-plate and a
spiral phase plate to generate arbitrary vector vortex beams on a hybrid-order Poincaré …

Structured light is attracting significant attention for its diverse applications in both classical
and quantum optics. The so-called vector vortex beams display peculiar properties in both …

Structured light, also known as tailored light, shaped light, sculpted light, or custom light,
refers to a series of special light beams with spatially variant amplitudes and phases …

Singular beams have attracted great attention due to their optical properties and broad
applications from light manipulation to optical communications. However, there has been a …

Nowadays, the well-known cylindrical vector beams (CVBs)–the axially symmetric beam
solution to the full-vector electromagnetic wave equation–are widely used for advanced …

Graphene‐based metasurfaces have emerged as promising photoelectric devices that can
dynamically control the behavior of electromagnetic waves. The high‐order anomalous …

In this study, we propose a new approach to construct metasurfaces for the generation of
inverse energy flux near the optical axis. We derive new equations intended to create …

In this paper, a frequency-switchable terahertz coding metasurface is demonstrated based
on the phase transition of vanadium dioxide. Temperature excitation can initiate the insulator …