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

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Item Type:	Pubblicazione in rivista scientifica
Title:	Tunable liquid crystal q-plates with arbitrary topological charge
Creators:	Creators Email Slussarenko, Sergei UNSPECIFIED Marrucci, Lorenzo UNSPECIFIED Santamato, Enrico UNSPECIFIED
Autore/i:	Murauski, Anatoli; Du, Tao; Chigrinov, Vladimir
Date:	16 February 2011
Number of Pages:	6
Department:	Scienze fisiche
Sezione di dipartimento:	Struttura della materia
Identification Number:	10.1364/OE.19.004085
Official URL:	http://www.opticsinfobase.org/abstract.cfm?URI=oe-...
Journal or Publication Title:	Optics Express
Date:	16 February 2011
ISSN:	1094-4087
Volume:	19
Number:	5
Page Range:	pp. 4085-4090
Number of Pages:	6
Uncontrolled Keywords:	Liquid crystals; Optical vortices
Identification Number:	10.1364/OE.19.004085
Settori scientifico-disciplinari del MIUR:	Area 02 - Scienze fisiche > FIS/03 - Fisica della materia
Date Deposited:	22 Feb 2011 15:12
Last Modified:	30 Apr 2014 19:43
URI:	http://www.fedoa.unina.it/id/eprint/7894

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.

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