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 …

Interest in the multiple facets of optical vortices has flourished in the last three decades. This
review examines the basic research and applications of the interplay between optical …

A novel radar imaging technique based on orbital angular momentum (OAM) modulation is
presented. First, the generation of electromagnetic (EM) vortex wave, which carries the OAM …

A system is proposed to generate vortex electromagnetic (EM) beams in the microwave
band, which generates high-order vortex beams at the X-frequency band for the first time …

Vortex beams carrying orbital angular momentum (OAM) are extensively studied owing to its
potential to expand channel capacity of microwave and optical communication. By utilizing …

A circular phased array antenna that can generate orbital angular momentum (OAM) radio
beams in the 10 GHz band is described. The antenna consists of eight inset‐fed patch …

Herein, we have discussed three major methods which have been generally employed for
the generation of optical beams with orbital angular momentum (OAM). These methods …

Communications using the orbital angular momentum (OAM) of radio waves have attracted
much attention in recent years. In this paper, a novel millimeter-wave dual OAM mode …

Recently, much attention has been focused on beams carrying orbital angular momentum
(OAM) for radio communication. Here we experimentally demonstrate a planar-spiral phase …

We present a comprehensive review on the geometric-phase based metasurfaces for orbital
angular momentum (OAM) generation and detection. These metasurfaces manipulate the …