Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • 2017 European Conference on Lasers and Electro-Optics and European Quantum Electronics Conference
  • (Optica Publishing Group, 2017),
  • paper EF_4_1

CLEO®/Europe-EQEC 2017, One Page Summary Template Optical vortex induction via light–matter interaction in liquid-crystal media

Not Accessible

Your library or personal account may give you access

Abstract

Optical vortices are attracting much attention because of their applications in various fields of optical processing, communications, enhanced imaging systems, and bio-inspired devices [1]. Different methods to generate optical vortices have been devised to date. Among them, several are based on the exploitation of light– matter interaction in liquid-crystal media. We focus on the main mechanisms of vortex generation in liquid crystals, in particular on vortex generation induced by umbilics, that is, defects arising in homeotropically aligned nematic cells, which act as topological matter templates able to realize the conversion from spin to orbital angular momentum of an incoming Gaussian beam [2-3]. Optical vortex induction in a photosensitive light valve is presented as a self-stabilizing mechanism leading to reconfigurable and programmable vortex arrays. On each lattice site, every matter vortex acts as a photonic spin-to-orbital momentum coupler, converting input arrays of circularly polarized beams into output arrays of vortex beams with topological charges consistent with the matter lattice symmetry.

© 2017 IEEE

PDF Article
More Like This
CLEO®/Europe-EQEC 2023, One Page Summary Template Ultrafast Nano Generation of Acoustic Waves in Water: Thermophone versus Mechanophone

Michele Diego, Marco Gandolfi, Stefano Giordano, Alessandro Casto, Francesco Maria Belussi, Aurélien Crut, Fabien Vialla, Stefano Roddaro, Matteo Fasano, Fabrice Vallée, Paolo Maioli, Natalia Del Fatti, and Francesco Banfi
jsvi_1_4 European Quantum Electronics Conference (EQEC) 2023

CLEO®/Europe-EQEC 2017 Optical Chern Insulators from Conical Refraction

Robert Mc Guinness and Paul Eastham
JSIV_3_4 European Quantum Electronics Conference (EQEC) 2017

CLEO®/Europe - EQEC 2015, One Page Summary Template Chiral modes in 2D PT-symmetric nanostructures

M. Botey, R. Herrero, M. Turduev, I. Giden, H. Kurt, and K. Staliunas
EH_P_16 European Quantum Electronics Conference (EQEC) 2015

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved