Structured light, especially beams carrying orbital angular momentum (OAM), has gained
much interest due to its unique amplitude and phase structures. In terms of communication …

Orbital angular momentum (OAM) has aroused a widespread interest in many fields,
especially in telecommunications due to its potential for unleashing new capacity in the …

Vortex beam carrying orbital angular momentum (OAM) has been widely explored in optical
and microwave regions attributed to its potential characteristics in communication systems …

There is a growing interest in structured light, especially orbital angular momentum (OAM)
beams, due to its unique amplitude and phase structure. Multiple orthogonal OAM beams …

In this paper, ultra-thin metalenses are proposed to generate converging and non-diffractive
vortex beam carrying orbital angular momentum (OAM) in microwave region. Phase …

As the traditional resources (frequency, time, space, and so on) are efficiently utilized, it
becomes more and more challenging to satisfy the ever-lasting capacity-growing and users …

In this paper, an electromagnetic metasurface is designed, fabricated, and experimentally
demonstrated to generate multiple orbital angular momentum (OAM) vortex beams in radio …

Vortex beams have been extensively realized using different approaches. Typically, the
efficiency and bandwidth of a vortex beam are limited by impure copolarized components …

We propose a novel design of a near-field transmitting focused metasurface, which
transforms a linearly polarized planar incident wave into a near-field focused beam with …

A super-resolution imaging technique based on the vortex electromagnetic (EM) wave,
which carries orbital angular momentum (OAM), is reported in this paper. The proof-of …