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 …

Since the second half of the 20th century, ideas to develop methods for the formation of
optical vortices (OVs) or OV beams–regions of circular motion of energy flow in 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 report on the generation of high-order optical vortices by spiral phase mirrors. The phase
mirrors are produced by direct machining with a diamond tool and are shown to produce …

A binary diffractive optical element (1500 pixels× 1500 pixels, diameter 4.5 mm) is designed
by partial encoding and fabricated by direct electron beam writing in SiO 2. Two conjugate …

A new mathematical model of dark-hollow beams, described as hollow sinh-Gaussian (HsG)
beams, has been introduced. The intensity distributions of HsG beams are characterized by …

We establish propagation models for distributing autofocusing hypergeometric-Gaussian
(HyGG) beams via non-Kolmogorov atmospheric turbulence in the single-photon and …

We study the effects of non-Kolmogorov turbulence on the orbital angular momentum (OAM)
of Hypergeometric-Gaussian (HyGG) beams in a paraxial atmospheric link. The received …

An expression to describe the complex amplitude of a family of paraxial hypergeometric
laser beams propagating in a parabolic-index fiber is proposed. A particular case of a …