Efficient generation of orbital angular momentum (OAM) modes is a key foundation for
electromagnetic vortex wave communications or radar applications. The usual OAM …

Orbital angular momentum (OAM) encoding is a promising technique to boost data
transmission capacity in optical communications. Most recently, azobenzene films have …

Since the discovery of vortex beams by Allen et al., there has been a growing interest in
exploring the applications of orbital angular momentum (OAM) in communication. Among all …

We present the synthesis, prototyping and measurement of a transmitarray antenna for the
generation of circularly-polarized (CP) orbital angular momentum (OAM) beams. A novel “S …

In this paper, a wideband Butler matrix for the uniform circular array antenna (UCA)
generating multi-mode orbital angular momentum (OAM) vortex wave is designed. Firstly …

In this article, a long period fiber grating (LPFG) based on femtosecond laser irradiation is
proposed to generate the third order Orbital Angular Momentum (OAM) mode. With the …

El trabajo presentado consistirá en el estudio, y generación, de ondas electromagnéticas
con patrón de vórtice mediante metasuperficies 3D a través de simulación con el software …

For OAM application, the UCA element is fed by BFN with equal amplitude and progressive
phase difference [23]. In order to generate an OAM beam of±1/±2 mode by feeding eight …

This work aims to provide insight into the far-field properties of orbital angular momentum
(OAM) beams. Semi-analytical expressions for the far field of a general cylindrically …