Polarization and topological charge conversion of exact optical vortex beams at normal incidence on planar dielectric interfaces
Language
en
Article de revue
This item was published in
Optics Letters. 2012-09-15, vol. 37, n° 18, p. 3810-3812
Optical Society of America - OSA Publishing
English Abstract
We report on the exact resolution of the problem of reflection and refraction of exact circularly polarized Bessel vortex beams impinging at normal incidence on a planar dielectric interface between two isotropic and ...Read more >
We report on the exact resolution of the problem of reflection and refraction of exact circularly polarized Bessel vortex beams impinging at normal incidence on a planar dielectric interface between two isotropic and lossless media. On the one hand, we demonstrate the generation of a new vortex state both in the reflected and refracted fields. On the other hand, we show the possibility to completely convert, at reflection, the incident vortex beam into a vortex beam with orthogonal polarization and topological charge changed by ±2. The spin-orbit interaction of light occurring at the planar interface is identified as the mechanism responsible for these effects.Read less <
English Keywords
Electromagnetic optics
Invariant optical fields
260.2110
070.3185
Origin
Hal imported