Young’s double-slit experiment with vector vortex beams

In this Letter, Young’s double-slit experiment with vector vortex beams is investigated. We present the results for various Poincaré–Hopf index of class considering all four major types. Polarization associated morphological changes in far-field interference pattern are studied both theoretically and experimentally. The Fraunhofer consists lattices polarization singularities generic type, located on a line, direction perpendicular to slit. number linear varies as function ? beam that diffracted, intensity nulls occurring along vertical line equal | .