More spectrum bands are needed as the number of wireless applications rises. The
spectrum band, though, is now very difficult to adapt to new applications. Because of this, the …

In the last three decades, light's orbital angular momentum (OAM) has been of great interest
because it has unique characteristics that make it sought after in many research fields …

This book is devoted to the consideration of unusual laser beams–vortex or singular beams.
It contains many numerical examples, which clearly show how the phase of optical vortices …

In this work, we have achieved an advancement by integrating wide-angle capacity into
vortex beams with an impressive topological charge (TC) of 12. This accomplishment was …

We report on the generation of optical vortices with few-cycle pulse durations, 500 μ J per
pulse, at a repetition rate of 1 kHz. To do so, a 25 fs laser beam at 800 nm is shaped with a …

Artificial structures provide an efficient method to generate acoustic vortices carrying orbital
angular momentum (OAM) essential for applications ranging from object manipulation to …

We studied the orbital angular momentum (OAM) wave scattering by a perfect
electromagnetic conductor (PEMC) sphere using Mie Theory. The Vortex Electromagnetic …

This letter experimentally demonstrated the performance improvement of orbital-angular-
momentum (OAM) based 2 * 2 MIMO communication by using the diversity of different OAM …

X-ray beams carrying orbital angular momentum (OAM) are an emerging tool for probing
matter. Optical elements, such as spiral phase plates and zone plates, have been widely …

Orbital angular momentum (OAM) mode multiplexing has the potential to achieve high
spectrum-efficiency communications at the same time and frequency by using orthogonal …