Generation of arbitrary vector vortex beams on a higher-order Poincare sphere using a double-exposure polarization-multiplexed hologram

The existing methods for the generation of arbitrary vector vortex beams often involve complex optical setups or intricate fabrication methods. In this Letter, we propose a novel, to the best of our knowledge, and simplified approach for the efficient generation of vector vortex beams using a polarization-multiplexed hologram fabricated on an azo-carbazole polymer using a simple double-exposure technique. The hologram generates a vector vortex beam when simply illuminated by a collimated beam and also allows for a seamless traversal across the entire higher-order Poincare sphere (arbitrary vortex beam generation) just by modulating the polarization of an illuminating beam. (c) 2024 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement