Axicon is a versatile optical element for forming a zero-order Bessel beam, including high-
power laser radiation schemes. Nevertheless, it has drawbacks such as the produced …

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 …

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 …

Cylindrical vector vortex beams (CVVBs), possessing both spatially nonuniform phase and
polarization distribution, have attracted research interests in many applications due to their …

Coherent terahertz beams with radial polarization of the 1st, 2nd, and 3rd orders have been
generated with the use of silicon subwavelength diffractive optical elements (DOEs). Silicon …

We demonstrated and investigated, both theoretically and experimentally, the transformation
of cylindrical vector beams with an embedded phase singularity under the condition of …

We propose a reflective terahertz metamaterial linear polarization converter, consisting of
three layers: an array of metallic symmetrical anchor-shaped resonators, poly tetra …

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 …

A concise, efficient, and practical direct-view scheme is presented to generate arbitrary
cylindrical vector (CV) beams, including CV beams, vortex beams, and cylindrical vector …

The focusing features of a super-Gaussian beam, as well as Laguerre-super-Gaussian (1, 0)
modes with radial and circular polarizations on ring gratings (direct and inverse) with a …