Slussarenko, Sergei and Marrucci, Lorenzo and Santamato, Enrico (2011) Tunable liquid crystal q-plates with arbitrary topological charge. [Rivista]

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Abstract

Using a photoalignment technique with a sulphonic azo-dye as the surfactant aligning material, we fabricated electrically tunable liquid crystal q-plates with topological charge 0.5, 1.5 and 3 for generating optical vortex beams with definite orbital angular momentum (OAM) 1,3 and 6 per photon (in units of ¯h), respectively. We carried out several tests on our q-plates, including OAM tomography, finding excellent performances. These devices can have useful applications in general and quantum optics.

Item Type: Rivista
Uncontrolled Keywords: Liquid crystals; Optical vortices
Depositing User: Vincenzo De Luise
Date Deposited: 22 Feb 2011 15:12
Last Modified: 30 Apr 2014 19:43
URI: http://www.fedoa.unina.it/id/eprint/7894

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