In recent years, vortex beams with orbital angular momentum (OAM) have attracted more
and more attention. The wavefront of the OAM beams is helical, the intensity at the center of …

This book deals with theoretical bases of the modern optics division concerned with
coherent light fields with singularities characterized by phase uncertainty. Singular light …

We obtain analytical expressions for the complex amplitudes of optical vortices deformed by
astigmatic transforms, ie, passed either through a cylindrical lens or through an inclined …

In an optical vortex (OV) field, the orbital angular momentum (OAM) distribution strongly
depends on the intensity, which results in difficulty in OAM independent modulation. To …

We theoretically study a Gaussian optical beam with an embedded off-axis optical vortex.
We also experimentally generate such an asymmetric Gaussian optical vortex by using an …

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 …

We analyze an elliptic optical vortex embedded into a Gaussian beam. Explicit closed
expressions for the complex amplitude and normalized orbital angular momentum (OAM) of …

Here we obtain a simple formula for the relative total orbital angular momentum (OAM) of a
paraxial light beam with arbitrary rotationally symmetric complex amplitude, passed through …

A generalized family of scalar structured Gaussian modes including helical-Ince–Gaussian
(HIG) and Hermite–Laguerre–Gaussian (HLG) beams is presented with physical insight …

We generalize the concept of perfect optical vortices, studying the elliptic perfect optical
vortices (EPOVs), which also have diameters independent of the topological charge. A …