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arXiv · 1410.1359

Cylindrically polarized Bessel-Gauss beams

Daena Madhi·Marco Ornigotti·Andrea Aiello
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Abstract

We present a study of radially and azimuthally polarized Bessel-Gauss beams in both the paraxial and nonparaxial regimes. We discuss the validity of the paraxial approximation and the form of the nonparaxial corrections for Bessel-Gauss beams. We show that, independently from the ratio between the Bessel aperture cone angle $\vartheta_0$ and the Gauss beam divergence $θ_0$, the nonparaxial corrections are always very small and therefore negligible. Explicit expressions for the nonparaxial vector electric field components are also reported.

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Daena Madhi, Marco Ornigotti, Andrea Aiello. 2014-10-07. Cylindrically polarized Bessel-Gauss beams. https://doi.org/10.1088/2040-8978%2F17%2F2%2F025603

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