We report an atmospheric multichannel data transmission system with channel separation
by vortex beams of various orders, including half-integer values. For the demultiplexing of …

The diffraction of vortex Gaussian laser beams by elementary objects of micro-optics
(surface micro-defects) to recognize the type of polarization (linear, circular, radial …

We study the propagation of optical vortices in a system which consists of a tandem of a
multi-helical and twisted anisotropic fiber. We show that at certain resonance regimes of the …

It is known that the astigmatic transformation can be used to analyze the topological charge
of a vortex beam, which can be implemented by using various optical methods. In this case …

In this paper, we investigate the possibility of determining the order (both whole and half-
integer) of an optical vortex beams based on the application of convolutional neural …

We propose to achieve multichannel information transmission in free space by means of
variously polarized beams. The interaction of vortex beams of various orders with the main …

In this paper, it is proposed to use Brewster angle refraction on a conical surface to form an
azimuthally polarized beam. After reflection from the conical interface of the two media, the …

Determining the order of a vortex beam is an important task in optics. The effect of various
types of aberrations on the intensity pattern of vortex beams is studied in this work using …

We have obtained an expression for the amplitude and intensity of the field along the caustic
line, which is formed during autofocusing when the generalized lens is illuminated. Two …

Among other recipients of the 2022 Nobel Prize in physics, A. Zeilinger was recognized for
research in quantum entanglement between photons. By way of illustration, his work …