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arXiv · 1512.04712

Vector Laguerre-Gauss beams with polarization-OAM entanglement in a graded-index medium

Nikolai I. Petrov
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Abstract

It is shown that the vector-vortex Laguerre-Gauss modes with polarization-orbital angular momentum (OAM) entanglement are the vector solutions of the Maxwell equations in a graded-index medium. Focusing of linearly and circularly polarized vortex light beams with nonzero azimuthal and radial indices in a cylindrical graded-index medium is investigated. The wave shape variation with distance taking into account the spin-orbit and nonparaxial effects is analyzed. Effect of long-term periodical revival of wave packets due to mode interference in a graded-index cylindrical optical waveguide is demonstrated. High efficiency transfer of a strongly focused spot through an optical waveguide over large distances takes place with a period of revival.

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Nikolai I. Petrov. 2015-12-15. Vector Laguerre-Gauss beams with polarization-OAM entanglement in a graded-index medium. https://doi.org/10.1364/josaa.33.001363

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