In this work, using the Rayleigh-Sommerfeld integral and the Berry formula, the topological
charge (TC) of a Gaussian optical vortex with an initial fractional TC is calculated. It is shown …

Acoustic orbital angular momentum (OAM) associated with helicoidal wavefront recently
attracts rapidly-growing attentions, offering a new degree of freedom for acoustic …

The temporally switchable optical mode conversion is crucial for optical communication and
computing applications. This research demonstrates such optically switchable mode …

Orbital angular momentum with index modulation (OAM-IM) has a great potential of
providing high spectral efficiency and energy efficiency by utilizing the indices of the …

Orbital angular momentum (OAM) of optical vortex beams has been regarded as an
independent physical dimension of light with predominant information-carrying potential …

When the orbital angular momentum (OAM)-carrying beam propagates in a highly
boisterous environment, it causes the degradation of the OAM modes' purity, which brings …

In this letter, a high-gain dual-mode orbital angular momentum (OAM) antenna array with a
simplified feeding network based on polarization rotating metasurface is presented. To …

For orbital angular momentum (OAM) recognition in atmosphere turbulence, how to design a
self-adapted model is a challenging problem. To address this issue, an efficient deep …

Electromagnetic waves carrying orbital angular momentum (OAM) can improve the spectral
efficiency of communication systems by multiplexing a number of OAM modes. However …

X-ray beams with orbital angular momentum (OAM) are a promising tool for x-ray
characterization techniques. Beams with OAM have a helicity—an azimuthally varying …