We examine the three-dimensional intensity distribution of vector Bessel–Gauss beams with
general polarization near the focus of a nonaperturing thin lens. Recently reported linearly …

Based on the Collins diffraction integral formula and the complex Gaussian expansion of the
aperture function, an analytical expression for a Lorentz–Gauss beam focused by an optical …

Three-dimensional intensity and phase distributions generated by microaxicons are
evaluated in the low-Fresnel-number regime. Apertured and nonapertured conical …

The focal shift of the axisymmetric Bessel-modulated Gaussian beam with quadratic radial
dependence (QBG beam) is investigated by using two different approaches. The first …

We present a simple formula to evaluate the relative focal shift in a circular-aperture lens
system illuminated by a nonuniformly polarized (NUP) light wave. Specifically, it is shown …

We discussed the radial intensity distribution in the presence of spherical aberrations (SA)
for cases in which the incident field is a focused Gaussian spot. A numerical solution of a two …

In this paper we show that engineering both phase and amplitude of the scattered light can
be employed in designing metalenses with either higher resolution or apodized focal spots …

In this paper, the focal shift of hollow Gaussian beams (HGBs) passing through a thin lens is
investigated in detail. An analytic expression of the location of the axial maximum intensity …

A single analytical formulation for evaluating the focal shift in any apodized nontelecentric
focusing setup is reported. The formulation is also useful in the case of imaged paraxial …

The three dimensional distribution of focused vector Mathieu-Gauss beams (vMG) is studied
in the vicinity of the geometrical focus of an unapertured thin lens. We adopt two different …