The index of refraction plays a decisive role in the design and classification of optical
materials and devices; therefore, its proper and accurate determination is essential. In most …

As a powerful supplement to the existing wireless communication technology, free-space
optical communication helps to achieve ultra-high-speed wireless communication in many …

Bessel beams (BBs) appear to be immune to diffraction over finite propagation distances
due to the conical nature of light propagation along the optical axis. This offers promising …

This paper describes an analytical approach for the incorporation of a specific class of non-
diffracting beams known as zero-order continuous frozen waves (FWs) within the context of …

We show the possibility of arbitrary longitudinal spatial modeling of non-diffracting light
beams over micrometric regions. The resulting beams, which are highly non-paraxial …

A new type of scalar nondiffracting beam is presented whose main feature is the freedom on
the choice of a two-dimensional spatial intensity pattern dependent upon the longitudinal …

We report on the theory and experimental generation of a class of diffraction-attenuation-
resistant beams with state of polarization (SOP) and intensity that can be controlled on …

The ability to generate any arbitrarily chosen optical field in a three-dimensional (3D) space,
in the absence of any sources, without modifying the index of refraction, remains an elusive …

The Bessel beam belongs to a typical class of non-diffractive optical fields that are
characterized by their invariant transverse profiles with the beam propagation. The extended …

We numerically demonstrate that the tight focusing of Bessel beams can generate focal
fields with an ultra-long depth of focus (DOF). The ultra-long focal field can be controlled by …