Structured light production with the use of polarization interferometer

Abstract

This article describes an experimental study of the optical vortex formation using beams reflected from a combination of two cube-corner reflectors with a special interference phase-shifting coating. As predicted earlier, if arranged properly, these cube-corner reflectors create a spatial polarization structure, that can be called an optical vortex, since the plane of oscillations of thе vector E rotates with azimuth variation in the transverse plane. Our previous studies concluded that such configuration works as intended, however only near-field images were obtained. This time we preset experimental results in the far field.