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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 5 — Feb. 28, 2011
  • pp: 4085–4090

Tunable liquid crystal q-plates with arbitrary topological charge

Sergei Slussarenko, Anatoli Murauski, Tao Du, Vladimir Chigrinov, Lorenzo Marrucci, and Enrico Santamato  »View Author Affiliations

Optics Express, Vol. 19, Issue 5, pp. 4085-4090 (2011)

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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 ), 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.

© 2011 Optical Society of America

OCIS Codes
(160.3710) Materials : Liquid crystals
(050.4865) Diffraction and gratings : Optical vortices

ToC Category:
Optical Devices

Original Manuscript: October 22, 2010
Revised Manuscript: December 10, 2010
Manuscript Accepted: December 13, 2010
Published: February 16, 2011

Sergei Slussarenko, Anatoli Murauski, Tao Du, Vladimir Chigrinov, Lorenzo Marrucci, and Enrico Santamato, "Tunable liquid crystal q-plates with arbitrary topological charge," Opt. Express 19, 4085-4090 (2011)

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