Using self-induced vortex-like defects in the nematic liquid crystal layer of a light valve with photo-sensible wall, we demonstrate the realization of programable optical vortices lattices with arbitrary configuration in space. On each lattice site, every matter vortex acts as a photonic spin-to-orbital momentum coupler and an array of circularly polarized input beams is converted into an output array of vortex beams with topological charges consistent with the vortex matter lattice. The vortex arrangements are explained the basis of light-induced matter defects and topological rules.
Barboza, R., Assanto, G., Bortolozzo, U., Clerc, M.G., Residori, S., Vidal Henriquez, E. (2015). Programmable lattices of optical vortices in nematic liquid crystal. In Proceedings of SPIE - The International Society for Optical Engineering (pp.95650L). SPIE [10.1117/12.2185512].
Programmable lattices of optical vortices in nematic liquid crystal
BARBOZA, RAOUF;ASSANTO, GAETANO;
2015-01-01
Abstract
Using self-induced vortex-like defects in the nematic liquid crystal layer of a light valve with photo-sensible wall, we demonstrate the realization of programable optical vortices lattices with arbitrary configuration in space. On each lattice site, every matter vortex acts as a photonic spin-to-orbital momentum coupler and an array of circularly polarized input beams is converted into an output array of vortex beams with topological charges consistent with the vortex matter lattice. The vortex arrangements are explained the basis of light-induced matter defects and topological rules.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
