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Polarization converter for higher-order laser beams using a single binary diffractive optical element as beam splitter.
We propose a new approach to generating a pair of initial beams for a polarization converter that operates by summing up two opposite-sign circularly polarized beams. The conjugated pairs of vortex
Experimental demonstration of the generation of the longitudinal E-field component on the optical axis with high-numerical-aperture binary axicons illuminated by linearly and circularly polarized
We analytically and numerically show that by introducing asymmetry into axicon design it becomes possible to generate the longitudinal E-field component on the optical axis for linearly and
Strengthening the longitudinal component of the sharply focused electric field by means of higher-order laser beams.
TLDR
This work has validated the growth of the longitudinal component in the focus for high-order modes at moderate NA=0.6-0.8, and essential lower sidelobes of Bessel modes, in comparison with LG modes.
OPTOELECTRONICS. SIGNAL PROCESSING: Multichannel computer-optics components matched to mode groups
TLDR
Estimates are obtained of the maximum number of groups of transverse modes which can be superimposed on one computer-optics component bearing in mind discretization of the transmission function.
Generation of cylindrical vector beams of high orders using uniaxial crystals
The generation of cylindrical vector beams in birefringent crystals is studied analytically and experimentally in paraxial and non-paraxial regimes. At sharp focusing (in the non-paraxial case), two
Implementation of ordinary and extraordinary beams interference by application of diffractive optical elements
Abstract We apply diffractive optical elements in problems of transformation of Bessel beams in a birefringent crystal. Using plane waves expansion we show a significant interference between the
Effective transformation of a zero-order Bessel beam into a second-order vortex beam using a uniaxial crystal
The transformation of paraxial and nonparaxial Bessel beams in a crystal of Iceland spar is considered theoretically. Calculation formulae for matching the thickness of the crystal and the parameters
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