Light-induced waveguide by a finite self-trapped vortex beam in a photorefractive medium

R. Passier (1) , M. Chauvet (1) , B. Wacogne (1) , F. Devaux (1)

1 FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174)

We report the formation of a 2D waveguide induced by a self-trapped vortex beam in a photorefractive-photovoltaic medium. Demonstrations are performed by monitoring the self-trapping dynamic of an annular vortex beam in a LiNbO(3):Fe crystal. Control of the experimental observations is consistent with the underlying physics revealed by a numerical model.

Domaines: Optique / photonique

R. Passier, M. Chauvet, B. Wacogne, F. Devaux. Light-induced waveguide by a finite self-trapped vortex beam in a photorefractive medium. Journal of Optics, 2011, 13, pp.085502. ⟨10.1088/2040-8978/13/8/085502⟩. ⟨hal-00655050⟩