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dc.contributor.authorArora, Gauri
dc.contributor.authorButola, Ankit
dc.contributor.authorRajput, Ruchi
dc.contributor.authorAgarwal, Rohit
dc.contributor.authorAgarwal, Krishna
dc.contributor.authorHorsch, Ludwig Alexander
dc.contributor.authorPrasad, Dilip Kumar
dc.contributor.authorSenthilkumaran, Paramasivam
dc.date.accessioned2024-08-22T07:42:10Z
dc.date.available2024-08-22T07:42:10Z
dc.date.issued2024-02-15
dc.description.abstractStructured beams carrying topological defects, namely phase and Stokes singularities, have gained extensive interest in numerous areas of optics. The non-separable spin and orbital angular momentum states of hybridly polarized Stokes singular beams provide additional freedom for manipulating optical fields. However, the characterization of hybridly polarized Stokes vortex beams remains challenging owing to the degeneracy associated with the complex polarization structures of these beams. In addition, experimental noise factors such as relative phase, amplitude, and polarization difference together with beam fluctuations add to the perplexity in the identification process. Here, we present a generalized diffraction-based Stokes polarimetry approach assisted with deep learning for efficient identification of Stokes singular beams. A total of 15 classes of beams are considered based on the type of Stokes singularity and their associated mode indices. The resultant total and polarization component intensities of Stokes singular beams after diffraction through a triangular aperture are exploited by the deep neural network to recognize these beams. Our approach presents a classification accuracy of 98.67% for 15 types of Stokes singular beams that comprise several degenerate cases. The present study illustrates the potential of diffraction of the Stokes singular beam with polarization transformation, modeling of experimental noise factors, and a deep learning framework for characterizing hybridly polarized beams.en_US
dc.identifier.citationArora, Butola, Rajput, Agarwal, Agarwal, Horsch, Prasad, Senthilkumaran. Taxonomy of hybridly polarized Stokes vortex beams. Optics Express. 2024;32(5):7404-7416en_US
dc.identifier.cristinIDFRIDAID 2258167
dc.identifier.doi10.1364/OE.512409
dc.identifier.issn1094-4087
dc.identifier.urihttps://hdl.handle.net/10037/34346
dc.language.isoengen_US
dc.publisherOptica Publishing Groupen_US
dc.relation.journalOptics Express
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2024 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)en_US
dc.titleTaxonomy of hybridly polarized Stokes vortex beamsen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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Attribution 4.0 International (CC BY 4.0)
Except where otherwise noted, this item's license is described as Attribution 4.0 International (CC BY 4.0)