Single-shot characterization of vector beams by generalized measurements

Abstract

Vector vortex beams, featuring independent spatial modes in orthogonal polarization components, offer an increase in information density for emerging applications in both classical and quantum communication technology. Recent advances in optical instrumentation have led to the ability of generating and manipulating such beams. Their tomography is generally accomplished by projection measurements to identify polarization as well as spatial modes. In this paper we demonstrate spatially resolved generalized measurements of arbitrary vector vortex beams. We perform positive operator valued measurements (POVMs) in an interferometric setup that characterizes the vector light mode in a single-shot. This offers superior data acquisition speed compared to conventional Stokes tomography techniques, with potential benefits for communication protocols as well as dynamic polarization microscopy of materials.

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Cited by in corpus (6)

• Roadmap on spatiotemporal light fields
• Shifting physics of vortex particles to higher energies via quantum entanglement
• Generation of vortex particles via generalized measurements
• Generation of Ultrarelativistic Vortex Leptons with Large Orbital Angular Momenta
• Robust Classical and Quantum Polarimetry with a Single Nanostructured Metagrating
• Revealing Hidden Topology of Complex Vector Beams via Plasmonic Interactions