Herein, we have discussed three major methods which have been generally employed for
the generation of optical beams with orbital angular momentum (OAM). These methods …

The review covers publications concerned with propagation of laser beams through
turbulent media described by the Kolmogorov theory and generalizations thereof to describe …

Dielectric microelements with circular symmetry have shown interesting optical properties:
photonic nanojets (PNJs) and whispering gallery modes (WGMs). They can confine light …

The photonic nanojet (PNJ) is a narrow high-energy beam that was originally found on the
back side of all-dielectric spherical structures. It is a unique type of energy concentration …

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 studied the characteristics of photonic nanojets formed by dielectric microcylinders over
the visible spectrum using FDTD numerical simulations. We varied a wide range of tuning …

T-matrix methods for electromagnetic structured beams mainly encompass Generalized
Lorenz-Mie Theories (GLMTs) which form a set of analytical approaches dealing with the …

We discuss the nonparaxial focusing of laser light into a three-dimensional (3D) spiral
distribution. For calculating the tangential and normal components of the electromagnetic …

We demonstrate numerically the feasibility of axial and angular control of the position of a
photonic nanojet (PNJ) by lossless phase-only modulation of a fixed Gaussian beam …

Three-dimensional (3D) microstructures used in the formation of optical traps on the optical
axis in the near diffraction zone are calculated and studied. Subwavelength, variable-height …