Arbitrary vortex arrays realized from optical winding of frustrated chiral liquid crystals
Idioma
en
Article de revue
Este ítem está publicado en
Journal of Optics. 2013, vol. 15, n° 4, p. 044021
Institute of Physics (IOP)
Resumen en inglés
We report on the realization of on-demand reconfigurable arbitrary arrays of microscopic optical vortex generators in chiral liquid crystals. These generators are optically inscribed in frustrated cholesteric films by means ...Leer más >
We report on the realization of on-demand reconfigurable arbitrary arrays of microscopic optical vortex generators in chiral liquid crystals. These generators are optically inscribed in frustrated cholesteric films by means of the laser-induced local winding of the chiral liquid crystal mesophase. This leads to the storage of microscopic, metastable, topological defect structures endowed with space-variant birefringent properties. Such structures are shown to produce optical vortices with a well-defined orbital state as a result of a spin-to-orbital angular momentum conversion process.< Leer menos
Palabras clave en inglés
optics of liquid crystals
topological liquid crystal defects
optical vortex generation
Orígen
Importado de HalCentros de investigación