Observation of Self-Induced Optical Vortex Precession
Langue
en
Article de revue
Ce document a été publié dans
Physical Review Letters. 2013-06-07, vol. 110, n° 23, p. 233603 (1-5)
American Physical Society
Résumé en anglais
We report on the observation of self-induced precession of an optical vortex as a result of the nonlinear interaction between light and liquid crystals. The phenomenon corresponds to an instability for the spin-orbit ...Lire la suite >
We report on the observation of self-induced precession of an optical vortex as a result of the nonlinear interaction between light and liquid crystals. The phenomenon corresponds to an instability for the spin-orbit interaction of light that manifests as a spontaneous axial symmetry breaking, which leads to the orbital motion of the optical vortex around the beam propagation. A nonlinear spin Hall effect of light is experimentally identified, thereby unveiling an original demonstration of spin to extrinsic orbital light angular momentum self-conversion.< Réduire
Mots clés en anglais
Mechanical effects of light on material media
microstructures and particles
Optical angular momentum and its quantum aspects
Orientational order of liquid crystals
electric and magnetic field effects on order
Origine
Importé de halUnités de recherche