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Behavior of propagating and evanescent components in azimuthally polarized non-paraxial fields

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The contribution of the propagating and the evanescent waves associated with freely propagating non-paraxial light fields whose transverse component is azimuthally polarized at some plane is investigated. Analytic expressions are derived for describing both the spatial shape and the relative weight of the propagating and the evanescent components integrated over the transverse plane. The analysis is carried out within the framework of the plane-wave angular spectrum approach. These results are used to illustrate the behavior of a kind of donut-like beams with transverse azimuthal polarization at some plane.

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Applied Physics B-Lasers and Optics, 2013

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Articles publicats en revistes (Física Aplicada)

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Behavior of propagating and evanescent components in azimuthally polarized non-paraxial fields