Analytic treatment of nonparaxial full-Poincaré fields: singularity structure and trapping properties
| Autor: | Rodrigo Gutiérrez Cuevas, Miguel A. Alonso |
|---|---|
| Přispěvatelé: | University of Rochester [USA], Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU), Institut FRESNEL (FRESNEL), Centre National de la Recherche Scientifique (CNRS)-École Centrale de Marseille (ECM)-Aix Marseille Université (AMU), École Centrale de Marseille (ECM), MOSAIC (MOSAIC), Centre National de la Recherche Scientifique (CNRS)-École Centrale de Marseille (ECM)-Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)-École Centrale de Marseille (ECM)-Aix Marseille Université (AMU), Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Physics
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] business.industry Structure (category theory) Trapping 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials 010309 optics symbols.namesake Singularity Optics Classical mechanics 0103 physical sciences Poincaré conjecture symbols 010306 general physics business ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Journal of Optics Journal of Optics, Institute of Physics (IOP), 2021, 23 (2), pp.024005. ⟨10.1088/2040-8986/abe01f⟩ Journal of Optics, 2021, 23 (2), pp.024005. ⟨10.1088/2040-8986/abe01f⟩ |
| ISSN: | 2040-8978 2040-8986 |
| Popis: | An analytic extension to the nonparaxial regime of the full-Poincaré (FP) beams is presented. Instead of the stereographic mapping used in the paraxial case, these FP fields are defined in terms of a mapping from the polarization Poincaré sphere onto the sphere of plane-wave directions. It is shown that multipolar fields with complex arguments can be used to implement this mapping and provide closed-form expressions. The three-dimensional polarization singularities of the resulting fields are studied with the help of auxiliary fields presenting vortices at points where the polarization is circular or linear. Finally, the Mie scattering and trapping properties of the FP fields are studied, both of which are greatly simplified by the choice of fields. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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