Orbital angular momentum (OAM) of light is an important feature of structured
electromagnetic fields exhibiting non-uniform spatial distribution. In contrast to a spin …

Vortex light beams are structures of the electromagnetic field with a spiral phase ramp
around a point-phase singularity. These vortices have many applications in the optical …

In order to address the present difficulty in experimentally generating the relativistic
Laguerre-Gaussian laser, primarily due to damage caused to optical modulators, a high …

We propose a twisted plasma accelerator capable of generating relativistic electron vortex
beams with helical current profiles. The angular momentum of these vortex bunches is …

Reaching light intensities above 1025 W cm− 2 and up to the Schwinger limit of order 1029
W cm− 2 would enable the testing of fundamental predictions of quantum electrodynamics. A …

The complete characterization of an ultrashort laser beam ultimately requires the
determination of its spatio-temporal electric field E (x, y, t), or its spatio-spectral counterpart E …

We present a new magnetic field generation mechanism in underdense plasmas driven by
the beating of two, copropagating, Laguerre-Gaussian orbital angular momentum laser …

Extreme-ultraviolet vortices may be exploited to steer the magnetic properties of
nanoparticles, increase the resolution in microscopy, and gain insight into local symmetry …

Light beams with helical phase-fronts are known to carry orbital angular momentum (OAM)
and provide an additional degree of freedom to beams of coherent light. While OAM beams …

Recent developments of high harmonic generation (HHG) have enabled the production of
structured extreme-ultraviolet (EUV) ultrafast laser beams with orbital angular momentum …