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New paper in Scientific Reports, with a polarization grating design for the section of vector beams


SciRep

We published a new paper in Scientific Reports entitled Vector Beam Polarization State Spectrum Analyzer. This work has been done with our friends at San Diego State University.

In this work we present a proof of concept for a vector beam polarization state spectrum analyzer based on the combination of a polarization diffraction grating (PDG) and an encoded harmonic q-plate grating (QPG). The result is a two-dimensional polarization diffraction grating that generates six different q-plate channels with topological charges from −3 to +3 in the horizontal direction, and each is split in the vertical direction into the six polarization channels at the cardinal points of the corresponding higher-order Poincaré sphere. Consequently, 36 different channels are generated in parallel.

We show that this system can be used as a vector beam polarization state spectrum analyzer, where both the topological charge and the state of polarization of an input vector beam can be simultaneously determined in a single experiment.

Download the paper here

 


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