Both classical and quantum waves can form vortices: entities with helical phase fronts and
circulating current densities. These features determine the intrinsic orbital angular …

The recent prediction and subsequent creation of electron vortex beams in a number of
laboratories occurred after almost 20 years had elapsed since the recognition of the physical …

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 …

The component of orbital angular momentum (OAM) in the propagation direction is one of
the fundamental quantities of an electron wave function that describes its rotational …

Electrons have played a significant role in the development of many fields of physics during
the last century. The interest surrounding them mostly involved their wave-like features …

There are important differences between the nonrelativistic and relativistic description of
electron beams. In the relativistic case the orbital angular momentum quantum number …

Atomically resolved imaging of materials enabled by the advent of aberration-corrected
scanning transmission electron microscopy (STEM) has become a mainstay of modern …

The general formula for probability to record a twisted photon produced by a charged
particle moving in an inhomogeneous isotropic dispersive medium is derived. The explicit …

Recently, a new device to measure the orbital angular momentum (OAM) electronic
spectrum after elastic/inelastic scattering in a transmission electron microscope has been …

The probability to detect a twisted photon produced by a cold relativistic particle bunch of
charged particles is derived. The radiation of twisted photons by such particle bunches in …